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┌───────────────────────────────────────────────────────┐
│ │
│ P r o W i n d o w s (tm) L I T E 5.20 │
│ │
│ The Professional Windows Management Library │
│ Documentation │
│ │
│ (c) Copyright 1988-1992 DSE Software Publishing │
│ Licensed Material. All Rights Reserved. │
│ │
│ ╔═══════════════════════════════════╗ │
│ ║ ▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀ ║ │
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│ ║ ▀▀▀▀▀▀▀▀ ▀▀▀▀▀▀ ▀▀▀▀▀▀▀▀▀▀ ║ │
│ ╚═══════════════════════════════════╝ │
│ │
│ DSE Software Publishing │
│ Post Office Box 96 │
│ Willits, CA 95490-0096 │
│ (707) 459-4358 │
│ │
└───────────────────────────────────────────────────────┘
┌─────────┐
┌─────┴───┐ │ (R)
──│ │o │──────────────────
│ ┌─────┴╨──┐ │ Association of
│ │ │─┘ Shareware
└───│ o │ Professionals
──────│ ║ │────────────────────
└────╨────┘ MEMBER
Microsoft(R), QuickBASIC(R), and Professional BASIC are trademarks
or registered trademarks belonging to Microsoft Corporation.
IBM(R) and PC-DOS(R) are registered trademarks belonging to
International Business Machines. GEnie(SM) is a registered
service mark belonging to GEnie Information Services.
ProWindows(tm) is a trademarks of DSE Software Publishing.
Other product names are trademarks or registered trademarks
of thier respective holders.
T A B L E O F C O N T E N T S
INTRODUCTION
Disclaimer - Agreement ...................... I
What is ProWindows(tm) ...................... II
Hardware and Software Requirements .......... III
How to obtain Customer Support .............. III
Why must I call the Notice() routine ........ IV
CHAPTER 1 - THE "EVENT DRIVER"
Event Driver Overview ....................... 1.2
GetEvent .................................... 1.4
SetCalendar ................................. 1.4
SetClock .................................... 1.4
SetEventDelay ............................... 1.5
SetUserCoords ............................... 1.5
QuickKey .................................... 1.6
useDrivers .................................. 1.6
Event Codes ................................. 1.7
CHAPTER 2 - THE VIRTUAL WINDOW MANAGER
Window Manager Overview ..................... 2.2
AllocVirtualBlock (internal) ................ 2.4
Attr ........................................ 2.4
BinAttr ..................................... 2.4
ClearWindow ................................. 2.5
CloneWindow ................................. 2.5
CloseWindow ................................. 2.5
Copyright ................................... 2.5
DeAllocVirtualBlock (internal) .............. 2.6
DisplayWindow ............................... 2.6
DrawBox ..................................... 2.6
FillScreen .................................. 2.7
ForceWindow ................................. 2.7
FREEWINDOW .................................. 2.8
GetScreen ................................... 2.8
GetVirtualPtr ............................... 2.8
GrabWindow .................................. 2.9
HideWindow .................................. 2.9
HotPrint .................................... 2.9
InitPro ..................................... 2.9
IsBWmode .................................... 2.10
MainWindow .................................. 2.10
MakeWindow .................................. 2.11
ModifyWindow ................................ 2.11
MoveWindow .................................. 2.11
OpenWindow .................................. 2.12
PopWindow ................................... 2.13
PopSound .................................... 2.13
PutScreen ................................... 2.13
PreInit ..................................... 2.13
ReAlignWindow ............................... 2.14
RecycleMode ................................. 2.14
RefreshAllWindows ........................... 2.15
(c) Copyright 1988-1991 DSE Software Publishing
RefreshMain ................................. 2.15
RefreshMode ................................. 2.15
RefreshWindow ............................... 2.16
RemoveSound ................................. 2.13
RemoveWindow ................................ 2.16
ResizeWindow ................................ 2.16
RestoreWindow (internal) .................... 2.17
ScanHandle (internal) ....................... 2.17
ScanVirtualBlock (internal) ................. 2.17
ScreenMode .................................. 2.17
SetBorderColor .............................. 2.18
SetBWmode ................................... 2.18
SetCompressMode (internal) .................. 2.18
SetMonitorColor ............................. 2.18
SetShadow ................................... 2.19
SetWindow ................................... 2.19
SetWindowMinSize ............................ 2.19
SetZoomSpeed ................................ 2.20
SetZoomStyle ................................ 2.20
ShowVLSmemory (internal) .................... 2.21
ShowWindow .................................. 2.21
sprint ...................................... 2.21
StoreWindow (internal) ...................... 2.22
TitleWindow ................................. 2.22
UnAttr ...................................... 2.23
UnBinAttr ................................... 2.23
UpdateScrollBars ............................ 2.23
ValidateWindow (internal) ................... 2.23
VideoBoard .................................. 2.23
VideoPage ................................... 2.24
VideoPageLen ................................ 2.24
vprint ...................................... 2.24
WhatWindow .................................. 2.25
winCLS ...................................... 2.25
winColor .................................... 2.25
winDeleteLine ............................... 2.26
winInsertLine ............................... 2.26
winLocate ................................... 2.26
winPos ...................................... 2.27
winPrint .................................... 2.27
winPrintCR .................................. 2.27
winPrintCRLF ................................ 2.28
winPrintLF .................................. 2.28
winPrintLn .................................. 2.28
winPrintNum ................................. 2.29
wlocate ..................................... 2.29
wprint ...................................... 2.29
wcprint ..................................... 2.29
cwprint ..................................... 2.29
cwcprint .................................... 2.29
CHAPTER 3 - MOUSE ROUTINE FEATURES
Mouse Overview .............................. 5.2
CheckMouse .................................. 5.3
DoubleClick ................................. 5.3
GetMouse .................................... 5.3
(c) Copyright 1988-1991 DSE Software Publishing
GetMouseInfo ................................ 5.4
GetMousePress ............................... 5.4
GetMouseRelease ............................. 5.5
Mouse ....................................... 5.5
MouseCursorOff .............................. 5.6
MouseCursorOn ............................... 5.6
MouseKillWindow ............................. 5.6
SetMouse .................................... 5.7
SetMouseMode ................................ 5.7
SetMouseState ............................... 5.7
SetMouseWindow .............................. 5.7
TermMouse ................................... 5.8
CHAPTER 4 - GLOBAL VARIABLES AND DATA TYPES
System Constants ............................ 4.1
Data Types .................................. 4.2
Global Variables and Arrays ................. 4.3
(c) Copyright 1988-1991 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 I
DISCLAIMER - AGREEMENT
Users of ProWindows(tm) LITE 5.20 must accept this disclaimer
of warranty:
"ProWindows(tm) LITE 5.20 is supplied as is. The author
disclaims all warranties, expressed or implied, including,
without limitation, the warranties of merchantability and of
fitness for any purpose. The author assumes no liability for
damages, direct or consequential, which may result from the
use of ProWindows(tm) LITE 5.20."
ProWindows(tm) LITE 5.20 is a "shareware program" and is
provided at no charge to the user for evaluation. Feel free
to share it with your friends, but please do not give it away
altered or as part of another system. The essence of "user-
supported" software is to provide personal computer users
with quality software without high prices, and yet to provide
incentive for programmers to continue to develop new
products. If you find this program useful and find that you
are using ProWindows(tm) LITE 5.20 and continue to use
ProWindows(tm) LITE 5.20 after a 21 day trial period, you
must make a registration payment of $25.20 to DSE Software
Publishing. The $25.20 registration will license one copy
for use by a single user on any one computer at any one time,
but may be freely moved from one computer location to
another, so long as there is NO possibility of it being used
at one location while it is being used at another.
Commercial users of ProWindows(tm) LITE 5.20 must register
and pay for their copies of ProWindows(tm) LITE 5.20 within
21 days of first use or their license is withdrawn. Site-
License arrangements may be made by contacting DSE Software
Publishing.
Anyone distributing ProWindows(tm) LITE 5.20 for any kind of
remuneration must first contact DSE Software Publishing at
the address below for authorization. This authorization will
be automatically granted upon request and such distributors
may begin offering ProWindows(tm) LITE 5.20 immediately
(However DSE Software Publishing must still be advised so
that the distributor can be kept up-to-date with the latest
version of ProWindows(tm) LITE.
You are encouraged to pass a copy of ProWindows(tm) LITE 5.20
along to your friends for evaluation. Please encourage them
to register their copy if they find that they can use it.
All registered users will receive a copy of the latest
version of the ProWindows(tm) LITE 5.20 system.
Registration fees should be paid to:
DSE Software Publishing
Post Office Box 96
Willits, CA 95490-0096
(707) 459-4358
(c) Copyright 1988-1991 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 II
WHAT IS PROWINDOWS(tm)
ProWindows(tm) is probably the most elaborate, but easy to
use, software development systems that money can buy. By
utilizing the ProWindows(tm) libraries, development time for
creating intricate software packages can be cut
significantly.
At the very heart of ProWindows(tm) is the "Virtual Window
Manager". This special driver manages every subroutine used
to create, print to, hide, clear, and the dozen other things
you can do to a window.
When you create a window, the manager automatically creates
storage space for the window's contents. When your window is
ready to be displayed, the window manager automatically saves
the portion of the screen you are about to place the window
on. Then, to make things even nicer, by using a specialized
compression algorithm, the old screen is squeezed to
sometimes less that 80% it's original size. This is intended
to save you plenty of memory space. Also, your compressed
screen is stored in "far" memory so you will save that
valuable "string space".
Once your windows are displayed, you can move, hide, overlap,
and re-size them with a simple click of a mouse (or you can
add keyboard commands).
The window manager can manage up to 128 concurrent windows
(memory permitting).
Nothing could be easier.
(c) Copyright 1988-1991 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 III
HARDWARE AND SOFTWARE REQUIREMENTS
o An IBM(R) PC/XT/AT or true "compatible" running MS-DOS(R)
or PC-DOS(R) 2.1 or later.
o One high-density floppy-disk drive or one floppy-disk
drive and a hard disk drive.
o 512K System Memory.
o Microsoft(R) QuickBASIC(R) 4.5, or Microsoft BASIC 6.x, or
Microsoft BASIC Professional Development System 7.x.
o Other requirements may vary with the compiler used.
HOW TO OBTAIN CUSTOMER SUPPORT
Registered users of ProWindows(tm) are offered almost
unlimited support. Listed in order of preference, customer
support is offered in the following ways:
o GE-Mail (GEnie) messages can be addressed to
"DSE.SOFTWARE". 2 to 24 hour response time.
o Voice support is available Monday through Friday, 12:00 PM
to 5:00 PM (Pacific) at (707) 459-4358.
o US Mail is by far the slowest (allow 1 to 3 weeks) but may
be addressed to:
Post-sales Support
DSE Software Publishing
Post Office Box 96
Willits, CA 95490-0096
Enclose (or have available) the following information:
a). Product's serial number, and release number.
b). Registered user's full name.
c). Registered user's full address.
If you are having technical problems, also have available a
complete description of your computer configuration,
including Brand of computer, DOS version, TSRs or Device
Drivers loaded, Amount of memory, add-on boards, Monitor and
adaptor card installed.
(c) Copyright 1988-1991 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 IV
WHY MUST I CALL THE Notice() ROUTINE?
The "evaluation" copy of ProWindows(tm) LITE 5.20 contains an
additional routine that you MUST call in order to make use of
this package.
==================================================================
Notice - SUB
ACTION Displays a "registration encouragement" message.
SYNTAX Notice
REMARKS You are required to call this routine within one (1)
minute of displaying your first window.
The purpose of this routine is to remind you that the
version you now possess is an "evaluation" copy of
ProWindows(tm) LITE and as stated elsewhere, you are
permitted 21 days to evaluate the product before you are
required to pay for it.
When called, ProWindows(tm) displays a window containing
a "registration encouragement" message. This window
works just like any other window and can be moved, re-
sized, hidden, etc.
When displayed, the global variable CurrentWindow%
contains the handle of displayed window.
SEE ALSO OpenWindow and CloseWindow
==================================================================
(c) Copyright 1988-1991 DSE Software Publishing
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(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 1.2
SECTION 1 - EVENT DRIVER OVERVIEW
=================================================================
The ProWindows GetEvent() function is the programmer's
interface to most library functions.
Ideally, GetEvent() should periodically take control of your
program to determine if any event needs to be processed.
When an event occurs, GetEvent() dispatches control to the
appropriate handler. When an event has been completed,
GetEvent() returns a unique number indicating what type of
event took place, and then control is returned to the
application. By providing the returned value back to
GetEvent(), you can further determine the handle of the
window or menu or form that was effected.
As an example, if GetEvent(0) returns the value 5, it
indicates that a window's hide icon was clicked, and then
GetEvent(5) returns the handle of the window that was
actually closed.
GetEvent() is also responsible for maintaining the resident
clock and calendar.
To make use of any function outlined in this chapter, you
must add the following line to your program code:
REM $INCLUDE : 'LITE.BI'
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 1.3
SECTION 2 - ROUTINE DESCRIPTIONS
=================================================================
GetEvent% - Function
ACTION Queries the event manager.
SYNTAX variablename% = GetEvent%(info%)
REMARKS This function accepts the following argument:
Argument Description
--------------- --------------------------------------
info% Type of information to retrieve
This routine actually performs two functions. First, it
takes control the program for a specified amount time
(see SetEventDelay). During this time, it waits to see
if a window, menu or form is manipulated. If an event
takes place, GetEvent%() returns a code indicating the
type of event that took place. If nothing happens, a
value of 17 is returned indicating a "time out".
Second, depending on the type of event that takes place,
you can pass the returned value back to GetEvent%() to
get the handle of the window, menu, or form control that
was manipulated.
SEE ALSO Section 3 of this chapter.
------------------------------------------------------------------
SetCalendar - SUB
ACTION Installs resident calendar in the specified window.
SYNTAX SetCalendar Handle%, row%, col%, Attrib%, status%
REMARKS This function accepts the following arguments:
Argument Description
--------------- --------------------------------------
Handle% If 0, the calendar is displayed in
coordinates relative to the physical
screen, otherwise the coordinates are
relative to the the defined window.
row%, col% Screen/window coordinates of calendar.
attrib% Video attribute of calendar.
status% If false, calendar is disabled.
Displays a perpetual calendar at the supplied
coordinates. The display format is: "MM/DD/YYYY". If
the calendar is within a window, it is only updated when
it is in the top most window.
------------------------------------------------------------------
SetClock - SUB
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 1.4
ACTION Installs resident clock in specified window.
SYNTAX SetClock Handle%, row%, col%, Attrib%, status%
REMARKS This function accepts the following arguments:
Argument Description
--------------- --------------------------------------
Handle% If 0, the clock is displayed in
coordinates relative to the physical
screen, otherwise the coordinates are
relative to the defined window.
row%, col% Screen/window coordinates of clock.
attrib% Video attribute of clock.
status% If false, clock is disabled.
Displays a perpetual clock at the supplied coordinates.
The display format is: "HH:MM:SS". If the clock is
within a window, it is only updated when it is in top
most window.
------------------------------------------------------------------
SetEventDelay - SUB
ACTION Sets maximum amount time for GetEvent() control.
SYNTAX SetEventDelay ticks%
REMARKS This function accepts the following arguments:
Argument Description
--------------- --------------------------------------
ticks% Maximum clock ticks for control.
This function determines the maximum amount time that
GetEvent() will take control of the program. Resolution
is measured in timer ticks (18.2) milliseconds. A value
of 0 returns control immediately if no event is pending.
------------------------------------------------------------------
SetUserCoords - SUB
ACTION Defines an area as a mouse "hotspot".
SYNTAX SetUserCoords Handle%, row%, col%, rows%, cols%
REMARKS This function accepts the following arguments:
Argument Description
--------------- --------------------------------------
Handle% An integer between 1 and 64 defining
the handle to assign a given "hotspot".
row%, col% Screen coordinates of block.
rows%, cols% Dimensions of block.
Defines an area of the screen as a mouse hotspot. When
a user clicks or releases the left mouse button while
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 1.5
within a "hotspot", GetEvent(0) returns 22 or 24,
respectively.
------------------------------------------------------------------
QuickKey - SUB
ACTION Defines a global "short cut" Key.
SYNTAX QuickKey handle%, Keypress$
REMARKS This function accepts the following argument:
Argument Description
--------------- --------------------------------------
handle% A unique handle to assign to the
keypress.
Keypress$ A 1 or 2 byte string to watch for.
This function allows trapping of a specific keypress.
Keypress$ should be the exact string (same as would be
returned by INKEY$) to watch for. When a "hot key" is
pressed, the function GetEvent() returns a value of 19.
A subsequent call to GetEvent(19) will return the handle
of the pressed key.
------------------------------------------------------------------
UseDrivers - SUB
ACTION Initializes various external drivers.
SYNTAX useDrivers menus%, forms%, cursor%
REMARKS This function accepts the following argument:
Argument Description
--------------- --------------------------------------
menus% NOT AVAILABLE IN LITE VERSION
forms% NOT AVAILABLE IN LITE VERSION
cursor% Set to '1' if your program will use any
"winPrint" style function calls.
This function helps solve various QuickBASIC quirks by
enabling or disabling access to certain functions and
variables. To make calls to the listed function types,
you must pass a value of '1' to the particular
parameter.
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 1.6
SECTION 3 - GETEVENT%() RETURN CODES
=================================================================
Argument Ret. Code Description
--------- --------- -----------------------------------------
0 0 No Event to process.
1 Can not process keystroke. The variable
KeyBuffer$ holds the keystroke.
2 A new window was selected.
3 A window was re-sized.
4 A window was moved.
5 A window was closed.
6 Mouse was clicked on the current window's
vertical scroll bar.
7 Mouse was clicked on the current window's
vertical UP button.
8 Mouse was clicked on the current window's
vertical DOWN button.
9 Mouse was clicked on the current window's
horizontal scroll bar.
10 Mouse was clicked on the current window's
horizontal LEFT button.
11 Mouse was clicked on the current window's
horizontal RIGHT button.
12 A Button selected.
13 Moved to new button.
14 A menu item was selected.
15 <CR> was pressed.
16 <ESC> was pressed.
17 Time out. Means nothing happened.
18 F1 was pressed. GlobalScreen% holds the
help screen queued for display.
19 A quick key was pressed.
20 Changed button position.
21 Internal
22 User defined mouse click event occurred.
23 Internal
24 User defined mouse release event occurred.
30 Mouse was clicked on a form's vertical
scroll bar.
31 Mouse was clicked on a form's vertical UP
button.
32 Mouse was clicked on a form's vertical
DOWN button.
33 Mouse was clicked on a form's horizontal
scroll bar.
34 Mouse was clicked on a form's horizontal
LEFT button.
35 Mouse was clicked on a form's horizontal
RIGHT button.
36 Changed position within a pick list.
37 Clicked pick list item.
101 Left Arrow key was pressed.
102 Right Arrow key was pressed.
103 Up Arrow key was pressed.
104 Down Arrow key was pressed.
105 PgUp key was pressed.
106 PgDn key was pressed.
107 Home key was pressed.
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 1.7
Argument Ret. Code Description
--------- --------- -----------------------------------------
108 End key was pressed.
109 Insert key was pressed.
110 Delete key was pressed.
111 Ctrl-Home was pressed.
112 Ctrl-End was pressed.
200 Right mouse button was clicked.
2 n Returns the handle of the affected window.
3 n "
4 n "
5 n "
6 n Returns new vertical scroll bar position.
7 n "
8 n "
9 n Returns new horizontal scroll bar position
10 n "
11 n "
12 n Returns handle of manipulated button.
13 n "
14 n Returns menu item selected.
19 n Returns hot key pressed.
21 n Returns internal event number.
23 n "
22 n Returns user event number
24 n "
30 n Returns handle of manipulated button.
31 n "
32 n "
33 n "
34 n "
35 n "
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 1.8
SECTION 4 - DATA TYPES
=================================================================
The following data types are declared in LITE.BI.
TYPEs and Elements Remarks
---------------------------- -----------------------------------
TYPE InkeyRec
Length AS INTEGER Length of Keypress$
ShiftState AS INTEGER State of keyboard flags
KeyChar AS STRING * 1 Single byte version of Keypress$
KeyValue AS INTEGER ASCII value of Keypress$
AltChar AS STRING * 1 Parsed (assumes ALT was pressed)
AltValue AS INTEGER ALT version scancode
ExtChar AS STRING * 2 Two byte version of Keypress$
ExtValue AS INTEGER Scan code of Keypress$
END TYPE
SELECT GLOBAL VARIABLES AND ARRAYS
NAME /DialogData/ Keyboard AS InkeyRec
REMARKS The "Keyboard" structure is filled from within the
WindowDriver() function. It contains 3 uniquely parsed
versions of the global variable KeyBuffer$.
-----------------------------------------------------------------
(c) Copyright 1988-1992 DSE Software Publishing
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(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 2.2
SECTION 1 - WINDOW MANAGER OVERVIEW
=================================================================
The ProWindows(tm) Virtual Window Manager is a set of BASIC
callable routines written in BASIC, C, and Assembler. The
Window Manager permits you to add sophisticated windowing
capabilities to your applications with minimal coding.
ProWindows provides two distinct type of window control
functions:
STACK BASED WINDOWS
Stack based window systems are perhaps the easiest to
implement, but they are by far the most limited. The concept
is simple: Windows are displayed on a last on first off
basis. Output is limited to the top most window only. Stack
based systems are not virtual, meaning that text displayed
with a window is not actually a part of the window, but is
only displayed at the same location.
PopWindow() and RemoveWindow() are classic examples of stack
based window routines. PopWindow() always displays a window
at the top of the stack, and RemoveWindow() always removes
the window at the top of the stack.
HANDLE BASED VIRTUAL WINDOWS
Handle based virtual window systems are a more natural form
of windowing systems. Each window is referred to by a unique
handle and output is directed to the current window handle.
Handle based windows can be moved, re-sized, hidden,
scrolled, re-displayed and more without affecting the window
contents.
OpenWindow(), DisplayWindow(), and CloseWindow() are the
handle based alternatives to creating windows. OpenWindow()
creates a new window and notifies it's presence to the window
manager. DisplayWindow() in turn brings the window to the
screen. CloseWindow() finally removes the window from the
display, and notifies the window manager that the window has
been deleted. Other routines exist to hide, move, and
perform other tasks to an existing window.
One often misunderstood feature of virtual windows is that
one does not have to be displayed to be manipulated. It is
possible to write to a non-displayed window, and then at some
later point bring the window to the foreground.
Even though ProWindows is internally designed around a
virtual based system, stack based functions can be carefully
integrated into the same code.
CREATING WINDOW HANDLES
The process of opening and closing windows with ProWindows is
virtually identical to opening and closing files with BASIC.
As with files, windows can be opened with "Explicit" or
"Implicit" handles.
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 2.3
"Explicit" handles are determined at compile time. An
example of opening a window (or a file) with an Explicit
handle would be:
OPEN "myfile.dat" FOR INPUT AS #1
OpenWindow 1, 10, 10, attr(7,0), 1, 1, 1, Opts
CLOSE #1
CloseWindow 1
With both examples, the handle is 1.
"Implicit" handles are determined at run time. An example of
opening a window (or a file) with an Implicit handle would
be:
FileHandle = FREEFILE
OPEN "myfile.dat" FOR INPUT AS #FileHandle
WinHandle = FREEWINDOW
OpenWindow WinHandle, 10, 10, attr(7,0), 1, 1, 1, Opts
CLOSE #FileHandle
CloseWindow WinHandle
FREEFILE is a BASIC function that returns the next available
file handle and FREEWINDOW is a ProWindows function that
returns the next available window handle.
With both windows and files, Explicit handles are usually
used only at main level code because it is assumed that the
main level code will always know what windows and files are
open. "Implicit" handles are usually used in sub modules
because they may not have access or knowledge of main level
handles. It is good programming practice to close all
Implicit handles BEFORE exiting module level code.
To make use of any function outlined in this chapter, you
must add the following line to your program code:
REM $INCLUDE : 'LITE.BI'
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 2.4
SECTION 2 - ROUTINE DESCRIPTIONS
=================================================================
AllocVirtualBlock - SUB
ACTION Internal to Window Manager - DO NOT USE
SYNTAX AllocVirtualBlock (handle%, size%)
REMARKS Allocates a portion of the VirMem() array and assigns it
to the given handle.
------------------------------------------------------------------
ATTR% - Function
ACTION Calculates and returns an integer value corresponding to
supplied Foreground and Background colors.
SYNTAX variablename% = ATTR (fore%, back%)
REMARKS This function accepts the following arguments:
Argument Description
--------------- --------------------------------------
fore% Foreground color of video attribute.
back% Background color of video attribute.
Returns an integer ranging 0 to 255. Valid Foreground
ranges are 0 to 31. Valid Background ranges are 0 to 7.
SEE ALSO: BASIC COLOR statement.
------------------------------------------------------------------
BINATTR% - Function
ACTION Calculates and returns an integer value corresponding to
the Foreground and Background arguments and the
Highlight and Blink flags.
SYNTAX variablename% = BINATTR (fore%, back%, high%, blink%)
REMARKS This function accepts the following arguments:
Argument Description
--------------- --------------------------------------
fore% Foreground color of video attribute.
back% Background color of video attribute.
high% Set if Highlighting is to be enabled.
blink% Set if Blinking is to be enabled.
Returns an unsigned integer ranging 0 to 255. Valid
Foreground and Background ranges are 0 to 7. Highlight
and Blink are flags that should be set to 0 or 1.
Always pass only INTEGER values.
SEE ALSO: BASIC COLOR statement.
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 2.5
ClearWindow - SUB
ACTION Clears everything within the borders of the current
window being displayed.
SYNTAX ClearWindow
REMARKS Removes entire contents of current window but does not
remove window titles.
------------------------------------------------------------------
CloneWindow - SUB
ACTION Creates duplicate of a window.
SYNTAX CloneWindow handle%
REMARKS This sub accepts the following argument:
Argument Description
--------------- --------------------------------------
Handle% Handle of an existing virtual window.
Creates an exact duplicate of an existing virtual window
and it's contents. The global variable CurrentWindow%
is updated to the handle of the new window. The new
window is not initially displayed.
SEE ALSO OpenWindow
------------------------------------------------------------------
CloseWindow - SUB
ACTION Removes and closes a virtual window.
SYNTAX CloseWindow handle%
REMARKS This sub accepts the following argument:
Argument Description
--------------- --------------------------------------
Handle% Handle of an existing virtual window.
Completely eradicates an existing window. If the window
is being displayed, it is removed. All window memory is
released back to the VirMem%() array.
------------------------------------------------------------------
Copyright - SUB
ACTION Displays the ProWindows(tm) standard copyright notice.
SYNTAX Copyright row%, col%
REMARKS This sub accepts the following arguments:
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 2.6
Argument Description
--------------- --------------------------------------
row%, col% Screen position to display the
copyright message.
The ProWindows licensing agreement discusses when you
are actually required to call this function.
------------------------------------------------------------------
DeAllocVirtualBlock - SUB
ACTION Internal to WLS - DO NOT USE
SYNTAX DeAllocVirtualBlock (handle%)
REMARKS Deallocates portion of the VirMem() array allocated by
the AllocVirtualBlock() sub.
------------------------------------------------------------------
DisplayWindow - SUB
ACTION Displays a virtual window.
SYNTAX DisplayWindow handle%, row%, col%, rows%, cols%
REMARKS This sub accepts the following arguments:
Argument Description
--------------- --------------------------------------
handle% Handle of virtual window to display.
row%, col% Absolute screen position to display the
window. A 0 value will automatically
center the window.
rows%, cols% Dimension of the window.
Displays a virtual window. If the window is already on
the display, it is brought to the top. If the rows% and
cols% are less that the actual physical dimensions of
the window, the displayed contents will be truncated.
------------------------------------------------------------------
DrawBox - SUB
ACTION Draws a box within a virtual window.
SYNTAX DrawBox handle%, row%, col%, rows%, cols%, attrib%,
border%
REMARKS This sub accepts the following arguments:
Argument Description
--------------- --------------------------------------
handle% Handle of window to draw box in.
row%, col% Window position to start box.
rows%, cols% Dimensions of box.
attrib% Video attribute of box.
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 2.7
border% Border style of box (1 thru 12)
Draws a single box within the specified virtual window.
If the window is being displayed, it is NOT
automatically refreshed. Refreshing should be done
AFTER all boxes have been placed.
SEE ALSO RefreshMain, RefreshAllWindows and RefreshWindow
------------------------------------------------------------------
FillScreen - SUB
ACTION Fills an area with specified attribute and character.
SYNTAX FillScreen row%, col%, rows%, cols%, attrib%,
char%, SNOW%
REMARKS This sub accepts the following arguments:
Argument Description
--------------- --------------------------------------
row%, col% Screen position to start the fill.
rows%, cols% Dimensions of fill area.
attrib% Video attribute to fill with.
char% ASCII character to fill with.
SNOW% The Global Variable SNOW%
Similar to the subroutine MakeWindow(). Fills the
indicated area with an ASCII character using the
indicated attribute.
The final parameter should always be the global variable
SNOW% which determines whether snow suppression will be
used when filling the area.
------------------------------------------------------------------
ForceWindow - SUB
ACTION Fast set of the Current Window
SYNTAX ForceWindow handle%
REMARKS This sub accepts the following arguments:
Argument Description
--------------- --------------------------------------
handle% Handle of window to set.
Makes the specified window the main window. All
ProWindows print statements will be diverted to this
window. ForceWindow does NOT attempt to determine if
the window actually exists, so use with caution.
SetWindow() is the preferred method.
SEE ALSO SetWindow
------------------------------------------------------------------
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 2.8
FREEWINDOW% - FUNCTION
ACTION Returns next available window handle
SYNTAX variablename% = FREEWINDOW
REMARKS Like BASIC's FREEFILE function, this function returns
the next available window handle for a subsequent call
to OpenWindow().
-----------------------------------------------------------------
GetScreen - SUB
ACTION Saves an area of the screen to memory.
SYNTAX GetScreen row%, col%, rows%, cols%, DataSeg%, DataOff%,
SNOW%
REMARKS This sub accepts the following arguments:
Argument Description
--------------- --------------------------------------
row%, col% Screen position to start copy.
rows%, cols% Dimensions of copy area.
DataSeg% Segment address of the storage array.
DataOff% Offset address of the storage array.
SNOW% The Global Variable SNOW%
This subroutine bypasses the WLS and grabs a portion of
the current screen at the coordinates supplied and
stores it in memory. You are responsible to allocate
enough memory to store each screen.
To determine the amount of memory required, use the
formula:
arraysize% = (rows% * cols%) * 2
The final parameter should always be the global variable
SNOW%.
SEE ALSO: PutScreen, BASIC Statements VARSEG and VARPTR.
------------------------------------------------------------------
GetVirtualPtr% - FUNCTION
ACTION Returns offset address of virtual window.
SYNTAX variablename = GetVirtualPtr (handle%)
REMARKS This function accepts the following argument:
Argument Description
--------------- --------------------------------------
handle% Handle of virtual window.
Returns an integer indicating the subscript within the
global array VirMem%() where the contents of the
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 2.9
specified window is stored. This can then be used with
BASIC's VARSEG and VARPTR functions to determine it's
location within RAM.
------------------------------------------------------------------
GrabWindow - SUB
ACTION Take snap shot of window and stores in window memory.
SYNTAX GrabWindow Handle%
REMARKS This function accepts the following argument:
Argument Description
--------------- --------------------------------------
handle% Handle of virtual window.
GrabWindow() was added for those die-hard programmers
who insist (with good cause) on using the BASIC's built-
in PRINT statement. Text can be PRINTed on a window and
GrabWindow() will store the image to the window's
memory.
------------------------------------------------------------------
HideWindow - SUB
ACTION Hide a virtual window.
SYNTAX HideWindow handle%
REMARKS This sub accepts the following argument:
Argument Description
--------------- --------------------------------------
handle% Handle of virtual window to hide.
Removes the specified virtual window from the screen.
The window is NOT destroyed, and can be re-displayed
using the many WLS functions.
SEE ALSO CloseWindow, DisplayWindow, MainWindow and ShowWindow
------------------------------------------------------------------
HotPrint - SUB
ACTION Prints text and highlighted text.
SYNTAX HotPrint row%, col%, attrib1%, text1$, attrib2%, text2$
REMARKS This sub accepts the following arguments:
Argument Description
--------------- --------------------------------------
row%, col% Window position to display text.
attrib1% Main text video attribute.
text1$ Main text to display.
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 2.10
attrib2% Sub-text video attribute.
text2$ Sub-text to display.
Displays a line of text, with a specific portion
highlighted. It's purpose is for displaying key words,
and highlighting it's selector letter. Text2$ should be
a sub-string of Text1$.
------------------------------------------------------------------
IsBWmode% - FUNCTION
ACTION Determines color characteristic of video card
SYNTAX variablename% = IsBWmode%
REMARKS IsBWmode%() is a function that returns a true condition
if the video adaptor is an MDA adaptor, a color adaptor
in BW mode, or if the function SetBWmode() has been
called.
------------------------------------------------------------------
InitPro - SUB
ACTION Initializes the Virtual Window Logic System.
SYNTAX InitPro
REMARKS Initializes all features of the Window Manager. It
should be the first executable statement within all
ProWindows applications. Failure to do so may cause
your system to lock up.
------------------------------------------------------------------
MainWindow - SUB
ACTION Make virtual window top most window.
SYNTAX MainWindow handle%
REMARKS This sub accepts the following argument:
Argument Description
--------------- --------------------------------------
Handle% Handle of virtual window.
Places the specified virtual window on top of all
displayed windows. If the window is not presently being
displayed, it is displayed using the last (or default)
window dimensions. The global variable CurrentWindow%
is set to Handle%.
------------------------------------------------------------------
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 2.11
MakeWindow - SUB
ACTION Displays a non-removable window.
SYNTAX MakeWindow Row%, Col%, Rows%, Cols%, Attr%, Border%,
Shadow%, Zoom%, SNOW%
REMARKS This sub accepts the following arguments:
Argument Description
--------------- --------------------------------------
row%, col% Screen position to display the window.
rows%, cols% Dimensions of window.
Attrib% Video attribute of new window.
Border% Border style of new window.
Shadow% Shadow style of new window.
Zoom% Zoom style of new window.
SNOW% The Global Variable SNOW%
MakeWindow() is functionally identical to PopWindow()
except that it completely bypasses the WLS so that your
existing screen is NOT saved, and can NOT be restored,
and all window printing routines are NOT referenced to
this screen. All printing to this screen must be
accomplished with the standard BASIC statements and/or
the ProWindows functions vprint() and sprint().
The final parameter should always be the global variable
SNOW%.
------------------------------------------------------------------
ModifyWindow - SUB
ACTION Change icons available on a window.
SYNTAX ModifyWindow handle%, icons%
REMARKS This sub accepts the following arguments:
Argument Description
--------------- --------------------------------------
Handle% Handle of virtual window.
icons% Added values of icons to add/delete.
Allows you to add/delete icons on an existing window.
This function does NOT automatically refresh the window.
SEE ALSO OpenWindow
------------------------------------------------------------------
MoveWindow - SUB
ACTION Move a virtual window.
SYNTAX MoveWindow handle%, row%, col%
REMARKS This sub accepts the following arguments:
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 2.12
Argument Description
--------------- --------------------------------------
Handle% Handle of virtual window.
row%, col% Screen position to move the window to.
Moves a displayed virtual window to a new location on
the screen. The window remains at the same level.
------------------------------------------------------------------
OpenWindow - SUB
ACTION Creates a new virtual window.
SYNTAX OpenWindow handle%, rows%, cols%, attrib%, border%,
shadow%, zoom%, icons%
REMARKS This sub accepts the following arguments:
Argument Description
--------------- --------------------------------------
handle% Handle to identify window with.
rows%, cols% Dimensions of the window.
attrib% Video attribute of new window.
border% Border style of new window (0-12).
shadow% Shadow style of new window (0-4).
zoom% Zoom style of new window (0-11).
icons Added icon values (see Section 3).
Creates a brand new virtual window with the specified
characteristics. The window remains invisible until an
appropriate display function is called. The global
variable CurrentWindow% is set to the new window's
handle.
SEE ALSO DisplayWindow, FREEWINDOW, PopWindow, and ShowWindow
------------------------------------------------------------------
PopSound - SUB
RemoveSound - SUB
ACTION Generate sound effects.
SYNTAX PopSound
RemoveSound
REMARKS These are the actual subroutines called when the global
variable SOUNDMODE% is set during the creation or
removal of a pop up window. You may call these same
functions at your leisure.
Prior to calling either subroutine, set the global
variable SOUNDMODE% to:
SOUND_MODE = 0 (no sound)
SOUND_MODE = 1 (click)
SOUND_MODE = 2 (beep)
SOUND_MODE = 3 (glisando)
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 2.13
Both functions are identical with the exception that
when SOUNDMODE% is set to GLISANDO, RemoveSound() goes
down scale rather than up.
------------------------------------------------------------------
PopWindow - SUB
ACTION Creates and displays a new window.
SYNTAX PopWindow Row%, Col%, Rows%, Cols%, Attrib,
Border%, Shadow%, Zoom%
REMARKS This sub accepts the following arguments:
Argument Description
--------------- --------------------------------------
row%, col% Screen position to display the window.
rows%, cols% Dimensions of window.
attrib% Video attribute of new window.
border% Border style of new window.
shadow% Shadow style of new window.
zoom% Zoom style of new window.
PopWindow() is used when a stack based windowing
environment is preferred. For every window created with
PopWindow(), there should later be a matching call to
RemoveWindow(). The global variable CurrentWindow%
holds the handle of the new window.
SEE ALSO OpenWindow and RemoveWindow.
------------------------------------------------------------------
PreInit - SUB
ACTION Pre-initializes all unused arrays
SYNTAX PreInit
REMARKS This function solves various external variable
references in the program code so that you will NOT have
to include the $INCLUDE files for functions that are not
being used. Got that?
PreInit() MUST be called prior to DIMensioning any
program variables
------------------------------------------------------------------
PutScreen - SUB
ACTION Restores an area of the screen to stored with GetScreen.
SYNTAX PutScreen row%, col%, rows%, cols%, DataSeg%, DataOff%,
SNOW%
REMARKS This sub accepts the following arguments:
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 2.14
Argument Description
--------------- --------------------------------------
row%, col% Screen position to restore copy.
rows%, cols% Dimensions of restore area.
DataSeg% Segment address of storage array.
DataOff% Offset address of storage array.
SNOW% The Global Variable SNOW%
This routine restores an area of the screen saved using
GetScreen(). Ideally you would restore the screen at the
same coordinates you copied if from, but you may place
it anywhere on the current screen if you wish. You may
also place the same screen several times in different
locations as long as you have not modified the original
memory.
The final parameter should always be the global variable
SNOW%.
SEE ALSO GetScreen
------------------------------------------------------------------
ReAlignWindow - SUB
ACTION Adjusts view port within a virtual window.
SYNTAX ReAlignWindow handle%, viewrow%, viewcol%
REMARKS This sub accepts the following arguments:
Argument Description
--------------- --------------------------------------
handle% Handle of virtual window.
vrow%, vcol% Position within the window to view.
Adjusts the view port into a virtual window. By
adjusting the values, you can permit both vertical and
horizontal scrolling of a window.
------------------------------------------------------------------
RecycleMode - SUB
ACTION Permit usage of excess video ram as "scratch" buffer.
SYNTAX RecycleMode mode%
REMARKS This sub accepts the following argument:
Argument Description
--------------- --------------------------------------
mode% 0 to disable video recycling.
1 to enable video recycling.
RecycleMode() allows you to utilize unused (in most
applications) video display RAM as a scratch buffer for
video operations. Enabling "video recycling" will
typically free up 24K (kilobytes) of system memory, and
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 2.15
increase window manipulation speed.
Video pages 0 and 1 are left to the user, but pages 2
and above are assigned for use by the Window Manager's
internal functions.
NOTE Video recycling is not available on monochrome system
and is automatically disabled. If the global array
VirMem%() is dimensioned large enough, this should not
interfere with program operation.
------------------------------------------------------------------
RefreshAllWindows - SUB
ACTION Updates all windows currently being displayed.
SYNTAX RefreshAllWindows
REMARKS Updates the contents of all virtual windows currently
being displayed. Their positions are NOT altered.
SEE ALSO RefreshMain and RefreshWindow.
------------------------------------------------------------------
RefreshMain - SUB
ACTION Refreshes the top most window.
SYNTAX RefreshMain
REMARKS Updates the contents of the top most window. It is
considerably faster than all other update functions.
SEE ALSO RefreshAllWindows and RefreshWindow.
------------------------------------------------------------------
RefreshMode - SUB
ACTION Enables immediate updating of displayed windows.
SYNTAX RefreshMode mode%
REMARKS This sub accepts the following argument:
Argument Description
--------------- --------------------------------------
mode% 0 to disable immediate updating.
1 to enable immediate updating.
RefreshMode() allows you to turn off screen updating,
and thus save considerable time, when writing large
amounts of data to window(s). After all information has
been written, you can re-enable the refreshing and call
any of window refreshing functions to update the
display.
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 2.16
SEE ALSO RefreshMain, RefreshAllWindows, and RefreshWindow.
------------------------------------------------------------------
RefreshWindow - SUB
ACTION Refreshes the specified window.
SYNTAX RefreshWindow handle%
REMARKS This sub accepts the following argument:
Argument Description
--------------- --------------------------------------
handle% Handle of virtual window to refresh.
Updates the contents of the specified window (and all
windows on top of it).
SEE ALSO RefreshMain and RefreshAllWindows.
------------------------------------------------------------------
RemoveWindow - SUB
ACTION Removes current window being displayed.
SYNTAX RemoveWindow
REMARKS Removes current window pointed to by a subscript of the
global array wcbndx%(), specifically wcbndx%(WI%). The
screen is restored to it's original contents.
NOTE This function is used for stack based windowing. Each
call to RemoveWindow() should correspond to a previous
call to PopWindow(). Stack based Windows are removed in
reverse order of the way the were created.
CloseWindow() is the preferred method of removing
windows.
SEE ALSO: CloseWindow, HideWindow, OpenWindow and PopWindow
------------------------------------------------------------------
ResizeWindow - SUB
ACTION Re-sizes displayed portion of a window.
SYNTAX ResizeWindow handle%, rows%, cols%
REMARKS This sub accepts the following arguments:
Argument Description
--------------- --------------------------------------
handle% Handle of window to re-size.
rows%, cols% New dimensions of window.
Re-dimensions the viewable portion of a virtual window.
The internal contents of the window are NOT affected.
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 2.17
RestoreWindow - SUB
ACTION Internal to Window Manager - DO NOT USE
SYNTAX RestoreWindow
REMARKS Removes a window from the internal window stack, frees
allocated memory, and updates the display. Its workings
are controlled by internal variables and it should never
be called.
------------------------------------------------------------------
ScanHandle% - FUNCTION
ACTION Determine if a window handle is in use.
SYNTAX variablename% = ScanHandle(handle%)
REMARKS This function accepts the following argument:
Argument Description
--------------- --------------------------------------
handle% Handle of window to detect.
Returns handle% if the window exists, or returns 0 if
the window does not exist.
------------------------------------------------------------------
ScanVirtualBlock% - FUNCTION
ACTION Internal to Window Manager - DO NOT USE
SYNTAX variablename% = ScanVirtualBlock (block%)
REMARKS Returns an integer pointing to an internal memory
control block (MCB).
------------------------------------------------------------------
ScreenMode% - FUNCTION
ACTION Returns current DOS screen mode.
SYNTAX variablename% = ScreenMode%
REMARKS This function returns the current DOS screen mode.
-----------------------------------------------------------------
SetBorderColor - SUB
ACTION Set window border coloring scheme.
SYNTAX SetBorderColor mode%, attrib%
REMARKS This function accepts the following argument(s):
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 2.18
Argument Description
--------------- --------------------------------------
mode% 0 - Use window color.
1 - Assume window background color.
2 - use attrib%.
attrib% Color of border when mode is 2.
This routine defines the coloring scheme of window
borders. A window's border color by default is the same
color as the window itself. This routine will allow you
to set a single border color for all windows, or make
the border's foreground color match the background color
of the window.
-----------------------------------------------------------------
SetBWmode - SUB
ACTION Puts color adaptors into simulated monochrome mode.
SYNTAX SetBWmode mode%
REMARKS This function accepts the following argument(s):
Argument Description
--------------- --------------------------------------
mode% 0 = normal.
1 = simulate monochrome.
Instructs all ProWindows functions to assume a simulated
monochrome mode. Colors are converted to BW equivalents
based on an internal conversion table. This colors are
identical across all monitor types.
SEE ALSO SetBWmode and SetMonitorColor.
------------------------------------------------------------------
SetCompressMode - SUB
ACTION Internal to Window Manager - DO NOT USE
SYNTAX SetCompressMode mode%
REMARKS Used by Menu Logic System (MLS) to disable screen
compression on menu windows. This causes an increase of
memory usage, but speeds up display time considerably.
This function is internally controlled and should never
be called.
------------------------------------------------------------------
SetMonitorColor - SUB
ACTION Change color of simulated monochrome mode
SYNTAX SetMonitorColor kolor%
REMARKS This function accepts the following argument:
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 2.19
Argument Description
--------------- --------------------------------------
kolor% 1 = Blue
2 = Green
3 = Cyan
4 = Red
5 = Magenta
6 = Amber
7 = White
Changes the display attribute when in a simulated
monochrome mode.
SEE ALSO IsBWmode and SetBWmode.
------------------------------------------------------------------
SetShadow - SUB
ACTION Set window shadow coloring scheme.
SYNTAX SetShadow attribute%, char%
REMARKS This sub accepts the following arguments:
Argument Description
--------------- --------------------------------------
attribute% Value Description
----- -------------------------------
0 Black shadow.
1-255 Attribute color.
-1 Use window foreground color.
-2 Use window background color.
char% Value Description
----- -------------------------------
0-255 Use ASCII character.
-1 Transparent shadow.
This routine defines the coloring scheme of window
shadows. A window's shadow color by default is flat
black. The routine will allow you to create transparent
shadows that match the color of the window, or are
inverse from the color of the beneath text. The
following produces the most natural looking shadow:
SetShadow -2, -1
------------------------------------------------------------------
SetWindow - SUB
ACTION Sets the Current Window
SYNTAX SetWindow handle%
REMARKS This sub accepts the following arguments:
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 2.20
Argument Description
--------------- --------------------------------------
handle% Handle of window to set.
Makes the specified window the current window. The
global variable CurrentWindow% is set to handle% and all
ProWindows print statements will be diverted to this
window. If the window does not exist, an error message
is displayed and the program halted.
SEE ALSO ForceWindow
------------------------------------------------------------------
SetZoomSpeed - SUB
ACTION Sets expansion rate of a zoomed window.
SYNTAX SetZoomSpeed mseconds%
REMARKS This sub accepts the following arguments:
Argument Description
--------------- --------------------------------------
mseconds% Delay in milli-seconds.
Defines the delay time between frames of a zoomed
window. This time is constant regardless of CPU type or
clock speed. The default speed is 25 milli-seconds.
------------------------------------------------------------------
SetZoomStyle - SUB
ACTION Sets the virtual paging mode of zoomed windows.
SYNTAX SetZoomStyle mode%
REMARKS This sub accepts the following arguments:
Argument Description
--------------- --------------------------------------
mode% 0 = DO NOT USE
1 = Open Viewport
2 = Wipe
Defines how windows look when the are zoomed onto the
display. Mode 1 opens the window onto an existing scene
(like opening a door). Mode 2 wipe the new window
across the existing display.
------------------------------------------------------------------
SetWindowMinSize - SUB
ACTION Defines the minimum displayable dimensions of a window.
SYNTAX SetWindowMinSize handle%, rows%, cols%
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 2.21
REMARKS This sub accepts the following arguments:
Argument Description
--------------- --------------------------------------
handle% Handle of window to define.
rows%, cols% Minimum dimensions of window.
Defines the minimum dimensions a window can be set to
using the mouse. This function causes self-correction
of invalid dimensions.
------------------------------------------------------------------
ShowVLSmemory - SUB
ACTION Internal to Window Manager - DO NOT USE
SYNTAX ShowVLSmemory.
REMARKS Displays the number of windows being displayed, and the
amounts of window stack memory and virtual window memory
being used. Displayed automatically when the global
variable CreateMode% is set.
------------------------------------------------------------------
ShowWindow - SUB
ACTION Displays the current window.
SYNTAX ShowWindow row%, col%, rows%, cols%, vrow%, vcol%
REMARKS This sub accepts the following arguments:
Argument Description
--------------- --------------------------------------
row%, col% Screen position to display the window.
rows%, cols% Dimensions of window.
vrow%, vcol% Veiwport position within window.
Displays the window pointed to by the global variable
CurrentWindow%.
SEE ALSO DisplayWindow
------------------------------------------------------------------
sprint - SUB
ACTION Displays text on the current screen - sideways
SYNTAX sprint row%, col%, attrib%, Text$, SNOW%
REMARKS This sub accepts the following arguments:
Argument Description
--------------- --------------------------------------
row%, col% Screen position of text to display.
attrib% Video attribute of text.
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 2.22
Text$ String literal to display.
SNOW% The Global Variable SNOW%
Places text at the specified position on the current
screen, vertically rather than horizontally.
This subroutine is a low level routine that writes text
directly to video memory. The coordinates supplied are
the actual screen coordinates and are NOT referenced to
any current pop up window being displayed. This routine
also provides absolutely NO error correction so you must
see that text does not run off the bottom of the page.
The final parameter should always be the global variable
SNOW%.
SEE ALSO vprint
------------------------------------------------------------------
StoreWindow - SUB
ACTION Internal to Window Manager - DO NOT USE
SYNTAX StoreWindow row%, col%, rows%, cols%, shadow%
REMARKS This is a low level function that saves screen fragments
in the window stack.
------------------------------------------------------------------
TitleWindow - SUB
ACTION Places specified text at any of eight border locations.
SYNTAX TitleWindow titlepos%, Text$
REMARKS This sub accepts the following arguments:
Argument Description
--------------- --------------------------------------
titlepos% window border location to print title.
text$ String literal of title to display.
A title is placed on the window pointed to by the global
variable CurrentWindow%. Foreground and background
colors are set to the default for that particular
window.
The eight permitted title positions are :
1 - Top Left.
2 - Top Center.
3 - Top Right.
4 - Bottom Left.
5 - Bottom Center.
6 - Bottom Right.
7 - Center Left Border.
8 - Center Right Border.
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 2.23
UNATTR - SUB
ACTION Separates an integer attribute into its individual
components.
SYNTAX unattr attribute%, fore%, back%
REMARKS The video attribute to be separated is passed in the
attribute% argument, and the separated attribute is
returned in foreground% and background%.
------------------------------------------------------------------
UNBINATTR - SUB
ACTION Separates an integer attribute into its individual
components and flags.
SYNTAX unbinattr attribute%, fore%, back%, highlight%, blink%
REMARKS The video attribute to be separated is passed in the
attribute% argument, and the separated attribute is
returned in fore%, back%, highlight%, and blink%.
------------------------------------------------------------------
UpdateScrollBars - SUB
ACTION Updates a window scroll bars.
SYNTAX UpdateScrollBars
REMARKS Updates the position of the current windows scrollbars
based on the contents of the global array elements
vcb().VertPos% and vcb().VertPos%.
------------------------------------------------------------------
ValidateWindow - SUB
ACTION Internal to Window Manager - DO NOT USE
SYNTAX ValidateWindow row%, col%, rows%, cols%
REMARKS This function makes sure that all window coordinates are
valid at display time.
------------------------------------------------------------------
VideoBoard% - FUNCTION
ACTION Returns current video adapter card type
SYNTAX variablename% = VideoBoard%
REMARKS This function returns the current video adapter card
type. Possible values are:
0 = MDA
1 = CGA
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 2.24
2 = EGA
3 = MCGA
4 = VGA
5 = VGA Monochrome
-----------------------------------------------------------------
VideoPage - FUNCTION
ACTION Ruturns the current screen video page.
SYNTAX variablename% = VideoPage%
REMARKS This function returns the current screen video page and
can range from 0 to 7 depending on the adapter type.
-----------------------------------------------------------------
VideoPageLen - FUNCTION
ACTION Returns the current video page length.
SYNTAX variablename% = VideoPageLen%
REMARKS This function returns the length (in bytes) of a single
video page. This value will vary with the adapter type
and the number of displayed lines. Monochrome cards
incorrectly return 16384.
-----------------------------------------------------------------
vprint - SUB
ACTION Displays text on the current screen.
SYNTAX vprint row%, col%, attrib%, Text$, SNOW%
REMARKS This sub accepts the following arguments:
Argument Description
--------------- --------------------------------------
row%, col% Screen position of text to display.
attrib% Video attribute of text.
Text$ String literal to display.
SNOW% The Global Variable SNOW%
This subroutine is a low level routine that writes text
directly to video memory. The coordinates supplied are
the actual screen coordinates and are NOT referenced to
any current pop up window being displayed. This routine
also provides absolutely NO error correction so you must
see that text does not run off the bottom of the page.
The final parameter should always be the global variable
SNOW%.
SEE ALSO sprint
------------------------------------------------------------------
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 2.25
WhatWindow% - FUNCTION
ACTION Returns handle of window at given location.
SYNTAX variablename% = WhatWindow(Row, Col)
REMARKS This sub accepts the following arguments:
Argument Description
--------------- --------------------------------------
row%, col% Internal position of any window.
Returns the handle of the window at the given screen
coordinates.
------------------------------------------------------------------
winCLS - SUB
ACTION Clears out the contents of the specified window.
SYNTAX winCLS
REMARKS This sub accepts the following argument:
Argument Description
--------------- --------------------------------------
winHandle% Window handle to clear.
This function clears out the contents of the specified
virtual window and resets the cursor to the top left
position on the window.
SEE ALSO CDEMO.BAS
------------------------------------------------------------------
winColor - SUB
ACTION Changes the current working colors.
SYNTAX winColor winHandle%, Fore%, Back%
REMARKS This sub accepts the following arguments:
Argument Description
--------------- --------------------------------------
winHandle% Window handle to change colors.
Fore% The foreground color ranging 0 to 31.
Back% The background color ranging 0 to 15.
This function sets the current working colors to the
specified foreground and background attributes. All
subsequent winPrint() calls to that window will print
with these attributes.
SEE ALSO CDEMO.BAS
------------------------------------------------------------------
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 2.26
winDeleteLine - SUB
ACTION Deletes line at cursor position
SYNTAX winDeleteLine winHandle%
REMARKS This sub accepts the following argument:
Argument Description
--------------- --------------------------------------
winHandle% Window handle where line is.
This function deletes the line at the current window
position. If the line is within the current window
viewport, the screen is automatically updated.
SEE ALSO CDEMO.BAS
------------------------------------------------------------------
wiInsertLine - SUB
ACTION Inserts a blank line at cursor position.
SYNTAX winInsertLine winHandle%
REMARKS This sub accepts the following argument:
Argument Description
--------------- --------------------------------------
winHandle% Window handle where to insert.
This function inserts a blank line at the current window
position. If the line is within the current window
viewport, the screen is automatically updated.
SEE ALSO CDEMO.BAS
------------------------------------------------------------------
winLocate - SUB
ACTION Repositions the cursor within a window.
SYNTAX winLocate winHandle%, row%, col%
REMARKS This sub accepts the following arguments:
Argument Description
--------------- --------------------------------------
winHandle% Window handle.
row%, col% Window position to move cursor to.
This function moves the cursor to the specified location
within the virtual window. If the line is within the
current window viewport, the cursor is displayed,
otherwise it is disabled.
SEE ALSO CDEMO.BAS
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 2.27
winPos - SUB
ACTION Returns the cursor position within a window.
SYNTAX winPos winHandle%, row%, col%
REMARKS This sub accepts the following arguments:
Argument Description
--------------- --------------------------------------
winHandle% Window handle.
row%, cols% Current cursor position.
This function returns the current cursor position within
the specified window.
------------------------------------------------------------------
winPrint - SUB
ACTION Prints a line of text at the window cursor position.
SYNTAX winPrint winHandle%, Text$
REMARKS This sub accepts the following arguments:
Argument Description
--------------- --------------------------------------
winHandle% Window handle to print to.
Text$ Text string to print.
This function prints a line of text at the current
cursor position. The cursor is then advanced to the end
of the printed text. If the line is within the current
window viewport, the screen is automatically updated.
SEE ALSO winColor, winPrintLn, CDEMO.BAS
------------------------------------------------------------------
winPrintCR - SUB
ACTION Sends a carriage return to a window.
SYNTAX winPrintCR winHandle%
REMARKS This sub accepts the following argument:
Argument Description
--------------- --------------------------------------
winHandle% Window handle to print to.
This function sends a carriage return to the specified
virtual window. The cursor then moves to the beginning
of the current line. If the line is within the current
window viewport, the screen is automatically updated.
SEE ALSO CDEMO.BAS
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 2.28
winPrintCRLF - SUB
ACTION Sends a carriage return / linefeed pair to a window.
SYNTAX winPrintCRLF winHandle%
REMARKS This sub accepts the following argument:
Argument Description
--------------- --------------------------------------
winHandle% Window handle to print to.
This function sends a carriage return / linefeed pair to
the specified virtual window. The cursor is advanced to
the first column of the next line. If the line is
within the current window viewport, the screen is
automatically updated.
SEE ALSO CDEMO.BAS
------------------------------------------------------------------
winPrintLF - SUB
ACTION Sends a linefeed to a window.
SYNTAX winPrintLF winHandle%
REMARKS This sub accepts the following argument:
Argument Description
--------------- --------------------------------------
winHandle% Window handle to print to.
This function sends a linefeed to the specified virtual
window. The cursor advances to the current columns
position of the next line. If the line is within the
current window viewport, the screen is automatically
updated.
SEE ALSO CDEMO.BAS
------------------------------------------------------------------
winPrintLN - SUB
ACTION Prints a line of text at the window cursor position.
SYNTAX winPrintLn winHandle%, Text$
REMARKS This sub accepts the following argument:
Argument Description
--------------- --------------------------------------
winHandle% Window handle to print to.
Text$ Text string to print.
This function prints a line of text at the current
window cursor position. The cursor is then advanced to
the first column of the next line. If the line is within
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 2.29
the current window viewport, the screen is automatically
updated.
SEE ALSO winColor, winPrint, CDEMO.BAS
------------------------------------------------------------------
winPrintNum - SUB
ACTION Prints formatted numeric data within a window.
SYNTAX winPrintNum winHandle%, format$, Value#
REMARKS This sub accepts the following arguments:
Argument Description
--------------- --------------------------------------
winHandle% Window handle to print to.
format$ Numeric format (See PRINT USING)
Value# Numeric value to print.
This function prints a formatted numeric value at the
current cursor position. The cursor is then advanced to
the end of the printed text. If the line is within the
current window viewport, the screen is automatically
updated.
SEE ALSO winPrint, PRINT USING, CDEMO.BAS
------------------------------------------------------------------
wlocate - SUB
ACTION Relocate cursor within a window
SYNTAX wlocate row%, col%
REMARKS This sub accepts the following arguments:
Argument Description
--------------- --------------------------------------
row%, col% internal position of current window.
Moves the cursor in reference to the internal
coordinates of the current window.
SEE ALSO CDEMO.BAS
------------------------------------------------------------------
WPRINT - SUB
CWPRINT - SUB
WCPRINT - SUB
CWCPRINT - SUB
ACTION Places text in the current window.
SYNTAX wprint row%, col%, text$
cwprint row%, col%, attrib%, text$
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 2.30
wcprint row%, text$
cwcprint row%, attrib%, text$
REMARKS These functions accept two or more of the following
arguments:
Argument Description
--------------- --------------------------------------
row%, col% internal position of current window.
attrib% Video attribute of text to display.
Text$ String literal to display.
These functions print text to the window pointed to by
the global variable CurrentWindow%. The window contents
are NOT automatically refreshed unless the window is the
top most window AND window refreshing is enabled.
wprint assumes that the text is to be displayed in the
default colors for that window. cwprint allows you to
specify exact colors. wcprint and cwcprint are the same
except that the text is automatically centered within
the current window so you need not specify a column.
SEE ALSO RefreshMode and RefreshWindow.
(c) Copyright 1988-1992 DSE Software Publishing
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(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 3.1
SECTION 1 - MOUSE OVERVIEW
=================================================================
Typical mouse oriented programs, like the QuickBASIC
environment, respond when you click the mouse in certain
areas of the screen. Without a good mouse manager, writing a
mouse application can be quite an effort.
ProWindows makes mouse programming easy. With a single
function call you can add complete event-driven mouse support
to your windows, menus, and input forms.
ProWindows(tm) includes two separate mouse drivers. You can
select either one while customizing your library in
DESIGNER.EXE.
The first is the "text" mouse. The "text" mouse uses
standard mouse API calls and will work with all Microsoft
compatible mice on any machine.
The other is a "graphic" mouse. Call for call it is
identical to the "text" mouse, but internally it is larger
and quite more complicated. This mouse tricks DOS into
thinking that it is in a graphics screen mode and therefore
displays a real graphics mouse cursor. It is quite
impressive.
The only drawback is that you lose ASCII characters 200 to
208 and it only works on EGA/VGA adaptors. If the driver
detects it is on a MDA/CGA adapter, it defaults to a text
cursor.
To make use of any function outlined in this chapter, you
must add the following line to your program code:
REM $INCLUDE : 'LITE.BI'
┌────────────────────────────────────────────────────────────────┐
│ Portions of the graphic mouse cursor driver were written by, │
│ and are copyrighted by, Dave Kirsch. Thank you Mr. Kirsch │
│ for allowing us to use your excellent routines. │
└────────────────────────────────────────────────────────────────┘
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 3.2
SECTION 2 - ROUTINE DESCRIPTIONS
=================================================================
CheckMouse% - FUNCTION
ACTION Determines if a mouse is installed.
SYNTAX variablename% = CheckMouse%(Buttons%)
REMARKS This routine accepts the following argument(s):
Argument Description
--------------- --------------------------------------
Buttons% Returns number of buttons on the mouse.
Determines whether mouse hardware and software are
installed. If found, this function will return a non-
zero value and the Buttons% parameter will hold the
number of buttons on the mouse (2 or 3).
When CheckMouse is called, the mouse cursor style
defaults to the best available. EGA/VGA adaptors will
display a smooth moving Windows(R) style graphics mouse
cursor (while in text mode) and CGA/MDA will display a
text based mouse cursor.
------------------------------------------------------------------
DoubleClick% - FUNCTION
ACTION Determines if a mouse button was clicked twice.
SYNTAX variablename% = DoubleClick%(DelayTime%)
REMARKS This routine accepts the following argument(s):
Argument Description
--------------- --------------------------------------
DelayTime% Maximum time between clicks.
This function can determine if a mouse button was double
clicked within a certain number of clock ticks (18.2
ms). The first call sets up the time, and the second
call returns a positive value if the same function is
called again within the given number of clock ticks.
------------------------------------------------------------------
GetMouse - FUNCTION
ACTION Retrieves current mouse state and coordinates.
SYNTAX variablename% = GetMouse%(Row%, Col%)
REMARKS This routine accepts the following argument(s):
Argument Description
--------------- --------------------------------------
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 3.3
Row%, Col% Screen coordinates of mouse cursor.
This routine retrieves the current mouse state and
coordinates. If a mouse button(s) is pressed, this
function returns the button number + 1. The two
parameter always return the mouse cursor's screen
coordinates whether or not a button is pressed.
SEE ALSO GetButtonPress, GetButtonRelease, SetMouse
------------------------------------------------------------------
GetMouseInfo - SUB
ACTION Retrieve information about the mouse.
SYNTAX GetMouseInfo major%, minor%, irq%, mtype%
REMARKS This routine accepts the following argument(s):
Argument Description
--------------- --------------------------------------
major% Mouse driver major version number.
minor% " " minor " "
irq% IRQ number mouse is installed on.
Value Description
----- ------------------------------
0 PS/2 pointing device
1 not defined
2 IRQ2
3 IRQ3
... ...
7 IRQ7
mtype% Type of mouse installed.
Value Description
----- ------------------------------
1 bus mouse
2 serial mouse
3 Microsoft InPort
4 IBM PS/2 Pointing Device port
5 Hewlett-Packard mouse
This function returns information about the installed
mouse driver.
------------------------------------------------------------------
GetMousePress - FUNCTION
ACTION Retrieves mouse button press information.
SYNTAX variablename% = GetMousePress% (Button%, Presses%,
Row%, Col%)
REMARKS This routine accepts the following argument(s):
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 3.4
Argument Description
--------------- --------------------------------------
Button% Mouse button to check (0-2)
Presses% Number of presses since last check.
Row%, Col% Screen coordinates of last press.
The routine returns the number of times the specified
mouse button was pressed since the last time the same
routine was called. Button press data is returned in
the last 3 parameters.
SEE ALSO GetMouseRelease
------------------------------------------------------------------
GetMouseRelease - FUNCTION
ACTION Retrieves mouse button release information.
SYNTAX variablename% = GetMouseRelease% (Button%, Releases%,
Row%, Col%)
REMARKS This routine accepts the following argument(s):
Argument Description
--------------- --------------------------------------
Button% Mouse button to check (0-2)
Releases% Number of Releases since last check.
Row%, Col% Screen coordinates of last press.
The routine returns the number of times the specified
mouse button was released since the last time the same
routine was called. Button press data is returned in
the last 3 parameters.
SEE ALSO GetMousePress
------------------------------------------------------------------
Mouse - FUNCTION
ACTION Retrieves mouse button information.
SYNTAX variablename% = Mouse% (Button%, Cmd%)
REMARKS This routine accepts the following argument(s):
Argument Description
--------------- --------------------------------------
Button% Mouse button to check (0-2)
Cmd% Information to retrieve.
Value Description
----- --------------------------------
1 Is button currently pressed.
2 Button clicks since last call.
3 Current mouse cursor row.
4 Current mouse cursor column.
5 Last mouse press row.
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 3.5
6 Last mouse press column.
7 Last mouse release row.
8 Last mouse release column.
9 Has the mouse state changed.
The routine returns the just about everything you ever
wanted to know about your mouse but were afraid to ask.
Function number 1 returns a positive value if the mouse
is currently pressed. Function 2 can then returns the
number of times the button was pressed. Function 9
returns a positive value if the mouse is pressed and if
it has been moved since the last call to function 9.
------------------------------------------------------------------
MouseCursorOff - SUB
ACTION Turns off the mouse cursor.
SYNTAX MouseCursorOff
REMARKS Turns off the mouse cursor. Even though the cursor is
not displayed, the cursor is still tracked and it's
movement can be read by other mouse functions.
SEE ALSO MouseCursorOn
------------------------------------------------------------------
MouseCursorOn - SUB
ACTION Turns on the mouse cursor.
SYNTAX MouseCursorOn
REMARKS Turns on the mouse cursor after an initial call to
CheckMouse%() or MouseCursorOff.
SEE ALSO CheckMouse, MouseCursorOn
------------------------------------------------------------------
MouseKillWindow - SUB
ACTION Hides mouse when out of bounds.
SYNTAX MouseKillWindow row%, col%, rows%, cols%
REMARKS This routine accepts the following argument(s):
Argument Description
--------------- --------------------------------------
row%, col% Top left coordinate of mouse area.
rows%, cols% Dimensions of mouse area.
This routine automatically hides the mouse cursor when
it leaves the defined screen area.
NOTE This function not availabe with graphics mouse.
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 3.6
SEE ALSO SetMouseWindow
SetMouse - SUB
ACTION Re-positions the mouse cursor.
SYNTAX SetMouse row%, col%
REMARKS This routine accepts the following argument(s):
Argument Description
--------------- --------------------------------------
row%, cols% New position for mouse cursor.
This routine moves the mouse cursor to a new location on
the screen.
SEE ALSO GetMouse
------------------------------------------------------------------
SetMouseMode - SUB
ACTION Selects the mouse style to use.
SYNTAX SetMouseMode mode%
REMARKS This routine accepts the following argument(s):
Argument Description
--------------- --------------------------------------
mode% Select cursor style.
This function selects the mouse style to use. Mode 0
selects a text-based mouse cursor, and mode 1 selects a
smooth moving Windows(R) style graphics mouse cursor.
SEE ALSO CheckMouse
SetMouseState - SUB
ACTION Turns mouse control OFF/ON
SYNTAX SetMouseState state%
REMARKS This routine accepts the following argument(s):
Argument Description
--------------- --------------------------------------
state% New state of the mouse.
This routine turns on or off mouse controller. The mouse
cursor, software, and hardware remain active, but
ProWindows drivers no longer respond to mouse control.
------------------------------------------------------------------
SetMouseWindow - SUB
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 3.7
ACTION Confines the mouse within a given screen area.
SYNTAX SetMouseWindow row%, col%, rows%, cols%
REMARKS This routine accepts the following argument(s):
Argument Description
--------------- --------------------------------------
row%, col% Top left coordinate of mouse area.
rows%, cols% Dimensions of mouse area.
This routine confines all mouse movement to the defined
screen area. If the cursor is outside the area when
this routine is called, it is relocated to just inside
the area. To reset, re-issue this same command with the
coordinates of the entire screen.
SEE ALSO MouseKillWindow
------------------------------------------------------------------
termMouse - SUB
ACTION Un-installed the mouse driver.
SYNTAX termMouse
REMARKS This function un-installs the mouse driver.
NOTE This function MUST be called upon exiting your program
or you may get a really funny looking mouse cursor when
you move the mouse. No harm should come, it will just
look funny.
The mouse driver will automatically reset itself if you
restart the program from within the environment.
------------------------------------------------------------------
(c) Copyright 1988-1992 DSE Software Publishing
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(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 4.1
SYSTEM CONSTANTS
=================================================================
The following list of pre-set constants are defined in LITE.BI.
These constants can be added "+" and passed as the options%
parameter in a call to OpenWindow().
NEVER modify the values of these constants.
Pre-Set Constants Value Remark
------------------ ----- ------------------------------------
OFFBUTTON 1 Place Off Icon on window
RESIZEBUTTON 2 Place Re-size Icon on window
DRAGBAR 4 Place Drag Bar on window
HORZSCROLLBAR 8 Place Horiz. Scroll Bar on window
VERTSCROLLBAR 16 Place Vert. Scroll Bar on window
SELECTABLE 64 Makes window selectable with mouse
FLAT 128 Create a borderless Flat window
AUTOCLOSE 512 Auto-close window when hidden
AUTOSCROLL 8192 Makes window scroll bars adjust window.
-----------------------------------------------------------------
USER CONSTANTS
This next set of constants can be defined by the user and should
be custom tailored to each application. These constants should
ALWAYS at the beginning of the main module and before any $INCLUDE
files.
The minimum value of each constant should NEVER be less than 1.
User Set Constants Value Remark
------------------ ----- ------------------------------------
MAXBUTTONS 64 ProWindows(tm) PROFESSIONAL ONLY
MAXOPTIONS 24 ProWindows(tm) PROFESSIONAL ONLY
MAXMENUS 20 ProWindows(tm) PROFESSIONAL ONLY
MAXWINDOWS 30 Maximum number of windows
-----------------------------------------------------------------
DATA TYPES
The following data types are declared in LITE.BI.
TYPEs and Elements Remarks
---------------------------- -----------------------------------
TYPE wincb
row AS INTEGER Screen row of window
col AS INTEGER Screen column of window
rows AS INTEGER Displayed rows of window
cols AS INTEGER Displayed columns of window
attr AS INTEGER Default attribute of window
Border AS INTEGER Border style of window
Shadow AS INTEGER Shadow style of window
Zoom AS INTEGER Zoom style of window
ptr AS INTEGER Index into scrn%() array
cbytes AS INTEGER Character bytes of compressed image
abytes AS INTEGER Attribute bytes of compressed image
END TYPE
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 4.2
TYPE vircb
row AS INTEGER Screen row to display window at
col AS INTEGER Screen column to display window at
rows AS INTEGER Window rows to display
cols AS INTEGER Window columns to display
vrow AS INTEGER Displayed offset into window
vcol AS INTEGER Displayed offset into window
vrows AS INTEGER Virtual rows in window
vcols AS INTEGER Virtual columns in window
attr AS INTEGER Attribute of virtual window
Border AS INTEGER Border style of virtual window
Shadow AS INTEGER Shadow style of virtual window
Zoom AS INTEGER Zoom style of virtual window
WI AS INTEGER Index into wcb() array
Options AS INTEGER Display options of virtual window
TitlePos AS INTEGER Title position of virtual window
Title AS STRING * 20 Title of virtual window
Buttons AS INTEGER Number of buttons in virtual window
LastButton AS INTEGER Last button selected
VertPos AS INTEGER Vertical scroll bar position
HorzPos AS INTEGER Horizontal scroll bar position
END TYPE
-----------------------------------------------------------------
SELECT GLOBAL VARIABLES AND ARRAYS
NAME /VideoData/ MAXROWS AS INTEGER
REMARKS MAXROWS% is filled by the function InitPro(), and holds
the number of screen rows in the current display mode.
-----------------------------------------------------------------
NAME /VideoData/ MAXCOLS AS INTEGER
REMARKS MAXCOLS% is filled by the function InitPro(), and holds
the number of screen columns in the current display
mode.
-----------------------------------------------------------------
NAME /VideoData/ VIDEOSEGMENT AS INTEGER
REMARKS VIDEOSEGMENT% is filled by the function InitPro(), and
holds the segment address of the beginning of display
memory.
-----------------------------------------------------------------
NAME /VideoData/ VIDEOOFFSET AS INTEGER
REMARKS VIDEOOFFSET% is filled by the function InitPro(), and
holds the offset address of the current video page in
display memory.
-----------------------------------------------------------------
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 4.3
NAME /WindowData/ wcb() AS wincb
REMARKS wcb() is a stack-based array that holds information
about the window currently on the screen. The last
window displayed is pointed to by: wcb(WI%).
-----------------------------------------------------------------
NAME /WindowData/ scrn() AS INTEGER
REMARKS scrn%() is an integer array that holds the individual
images of the original portions of the screen where a
window is being displayed. The contents on scrn%() are
highly compressed and should NEVER be modified.
-----------------------------------------------------------------
NAME /WindowData/ WI AS INTEGER
REMARKS WI% is used as a pointer into the arrays wcb() and
wcbndx%(). WI% holds the internal stack position of the
last window displayed. It also queues the next window
removed by the function RemoveWindow().
-----------------------------------------------------------------
NAME /WindowData/ SoundMode AS INTEGER
REMARKS SoundMode% is used to turn on sound effects when a
window is first displayed or removed.
SoundMode accepts the following values:
Value Description
--------------- --------------------------------------
0 Disable
1 Click
2 Beep
3 Glissando (chirp)
-----------------------------------------------------------------
NAME /WindowData/ SNOW AS INTEGER
REMARKS SNOW% is used to control flicker reduction on older CGA
adaptors. SNOW% should ALWAYS be set prior to the
initial call to InitPro(). If InitPro() decides that
flicker reduction is not needed, it will automatically
disable it.
-----------------------------------------------------------------
NAME /WindowData/ CreateMode AS INTEGER
REMARKS Used as a debugging aid, when set, CreateMode% enables
the window status display at the lower left portion of
the screen. The displayed numbers correspond to the
number of windows being displayed, highest subscript of
the array scrn%() being used, and the highest subscript
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 4.4
of array VirMem%() being used.
CreateMode% should ALWAYS be set during initial program
development.
-----------------------------------------------------------------
NAME /WindowData/ ERRNO AS INTEGER
REMARKS ERRNO% will contain a non-zero value if an error
occurred while loading a window, menu, or input form
from the disk.
-----------------------------------------------------------------
NAME /wprintData/ WindowSeg AS INTEGER
REMARKS DO NOT USE
-----------------------------------------------------------------
NAME /wprintData/ WindowOff AS INTEGER,
REMARKS WindowOff% holds the memory offset of the window pointed
to by the variable CurrentWindow%.
-----------------------------------------------------------------
NAME /wprintData/ WindowSize AS INTEGER
REMARKS WindowSize% holds the image width of the window pointed
to by the variable CurrentWindow%.
-----------------------------------------------------------------
NAME /VLSdata/ VirMem() AS INTEGER
REMARKS VirMem%() is an integer array that holds the images of
individual virtual windows. The contents of a window
can be modified by altering the contents of this array.
Modify at your own risk.
-----------------------------------------------------------------
NAME /VLSdata/ vcb() AS vircb
REMARKS vcb() is an array that holds information necessary for
the management of each virtual window. It's contents
should never be modified directly.
-----------------------------------------------------------------
NAME /VLSdata/ wcbndx() AS INTEGER
REMARKS wcbndx%() is a stack-based array that holds the handles
of all virtual windows being displayed. WI% is the
pointer variable for this array.
-----------------------------------------------------------------
(c) Copyright 1988-1992 DSE Software Publishing
ProWindows(tm) LITE - Version 5.20 4.5
NAME /VLSdata/ CurrentWindow AS INTEGER
REMARKS CurrentWindow% holds the handle of the currently
selected virtual window. All ProWindows specific print
functions are directed to this window.
-----------------------------------------------------------------
NAME /VLSdata/ UpdateMode AS INTEGER
REMARKS UpdateMode% controls whether ProWindows specific print
statement are immediately executed or only when one of
the Refresh functions are called.
-----------------------------------------------------------------
NAME /VLSdata/ GlobalOptions AS INTEGER
REMARKS GlobalOptions% hold the options used when a window is
created with a call to PopWindow(). This variable
should be defined prior to the call.
-----------------------------------------------------------------
NAME /VLSdata/ FreezeFrame AS INTEGER
REMARKS When set, FreezeFrame cancels all mouse actions to any
other window than CurrentWindow%.
-----------------------------------------------------------------
/VLSdata/ VideoRecycle AS INTEGER
REMARKS When set, VideoRecycle% forces the Window Manager to re-
use normally unused portions of video ram as a scratch
pad buffer. This option can return up to 24K back to
the BASIC environment. "Video Recycling" is not
available on Monochrome (MDA) adaptors, and will be
automatically disabled.
VideoRecycle% should be set prior to calling InitPro().
-----------------------------------------------------------------
(c) Copyright 1988-1992 DSE Software Publishing
