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*************************************** * * * MLIB v2.2 * * * * Mouse library for QuickBASIC * * * * 4.x * * * * and Visual Basic for MS-DOS * * * * * * Copyright (c) 1993 TERRY VENN * * * * All Rights Reserved * * * *************************************** MLIB v2.2 Copyright (c) 1993 TERRY VENN Shareware Version MLIB v2.2 is a library containing mouse procedures for use with QuickBASIC v4.x and Visual Basic for MS-DOS. With a few restrictions, the UNREGISTERED VERSION of MLIB may freely be copied and distributed directly or electronically as a complete package only and because it is copyright protected, it cannot be altered or modified in any way. You, the USER, after determining the product does have value, and wish to continue using it, are obligated to purchase the registered version.Having done this, you will receive the current and complete copy of MLIB along with its additional features. As a REGISTERED USER, you may modify the REGISTERED VERSION of this library in any way you wish for the sole creation of executable files for your own use or for sale for a profit. IN NO WAY shall this library in whole or in part be modified to be distributed or sold for profit where a person other than the LICENSED REGISTERED USER of MLIB can have direct access to these procedures. The license to use this library may be transferred to a third party if all existing copies of this software are also transferred. I WILL NOT BE HELD RESPONSIBLE IN ANY WAY FOR ANY UNDESIRED RESULTS CAUSED BY THE USE, MISUSE, OR INABILITY TO USE MLIB. If you run into a problem, regardless of whether you are a registered USER or not, please contact me via direct mail ( address is on the order form) or phone 1-306-379-4505, and I will do my best to rectify the problem.If a response is in order please send a SASE. The fee for registering MLIB v2.2 is $20 US / $25 CDN, and includes a 'registered' copy of MLIB v2.2 on disk. The fee covers the cost of diskette(s), taxes, shipping and handling. Payment must be in the form of cheque or money order. All US dollar cheques must be drawn on a US bank, and all CDN dollar cheques must be drawn on a Canadian bank. There will be a delay in processing orders for a non-certified cheque clearance. To place an order, please use the order form contained in the file ORDER.FRM. To produce a hard copy of this file on your printer type the following: A:>COPY ORDER.FRM PRN IBM is a Registered Trademark of International Business Machine Corporation. Microsoft, MS, and MS-DOS are Registered Trademarks of Microsoft Corporation. QuickBASIC and Visual Basic are Trademarks of Microsoft Corporation. TABLE OF CONTENTS Miscellaneous. ========================================== Included with registered version ..... 1 Getting started ...................... 2 Shapes contained in library .......... 3 ------------------------------------------ Assembly Routines. ========================================== ChangePointer ........................ 4 DClicBut ............................. 5 DClicM ............................... 6 DClicOff ............................. 7 DClicOn .............................. 8 DClicRate ............................ 9 GetButtonM ........................... 10 GetMotionM ........................... 11 GetPressM ............................ 12 GetReleaseM .......................... 13 GetSizeM ............................. 14 GetSpeedM ............................ 15 HidePointer .......................... 16 InitPointer .......................... 17 InWinM ............................... 18 RestoreStateM ........................ 19 SaveStateM ........................... 20 SetBoundM ............................ 21 SetHLimitM ........................... 22 SetPointer ........................... 23 SetSpeedM ............................ 24 SetVLimitM ........................... 25 ShowPointer .......................... 26 ShowPtrM ............................. 27 ------------------------------------------ Included with registered version: --------------------------------------------------------------------- MANUAL.DOC - Documentation. MLIB .INC - Include file. MLIBN .QLB - Quick library. MLIBN .LIB - Linking library (near string support). MLIBF .LIB - Linking library (far string support). ME .EXE - An easy to use mouse shape editing tool. It's like a simple paint program, where you use the mouse pointer to draw a picture of the pointer shape on a grid, select different colors (three of them "WOW!"), click where the hot spot will be, then save it to a SHAPE.SHP file. NOTE: ME.EXE requires VGA. CVTASM.EXE - If you have a MASM compatible assembler, use this command line utility to read a SHAPE.SHP file and place the shape data along with a CALLname in an assembly text file, which can then be assembled and added to MLIB. Then your program will be able to directly call this procedure to change the pointer shape. ASC2SHP.BAS- If you do not have VGA then use this program to create your own pointer shapes (runs in text mode). SHP2ASC.BAS- Extracts a bit mask from a ???.SHP file, and saves it as a text file for editing (for use with ASC2SHP.BAS). OBJ FILES - All the object files that make up this library are included ( plus a couple of bit related functions used by SHP2ASC.BAS and ASC2SHP.BAS) for your convenience in creating your own customized version of this library. Please NOTE! These customized libraries may not be distributed in any way, they are for your personal use only! NOT included with registered version: There will NOT be any "MLIB" copyright notices in the library or in any executable files linked with MLIB.LIB. --------------------------------------------------------------------- Page 1 Getting started. --------------------------------------------------------------------- (1): You must have an IBM PC/XT/AT/386 or compatible, plus Microsoft QuickBASIC 4.x or Visual Basic for MS-DOS. (2): To use MLIB in the QuickBASIC environment simply type QB/L MLIBN IMPORTANT! ========== All of the examples in this manual are based on QuickBASIC 4.5 (which uses near strings), so if you require far string support, make a QUICK library by linking with MLIBF.LIB. The "N" appended to MLIB identifies it as a near string library and the "F" identifies it as a far string library. MLIBN.LIB supports near strings ONLY! MLIBF.LIB supports far strings ONLY! To create a QUICK library for your particular version of BASIC do the following: If using BASIC 7.x type: LINK /Q MLIBF.LIB, MLIBF.QLB, NUL, QBXQLB.LIB; Start BASIC 7.x along with MLIB ie., QBX/L MLIBF If using Visual Basic for MS-DOS type: LINK /Q MLIBF.LIB, MLIBF.QLB, NUL, VBDOSQLB.LIB; Start VBDOS along with MLIB ie., VBDOS/L MLIBF (3): For proper operation always use the line '$INCLUDE: 'MLIB.INC' at the beginning of your program. (4): After the SCREEN mode has been set, CALL InitPointer(Num%), this will initialize the mouse driver plus MLIB for this particular mode. (5): All the routines in MLIB are ready to be used. Your program can safely call any of these routines whether a mouse is present or not. --------------------------------------------------------------------- Page 2 Pointer shapes contained in library MLIB. --------------------------------------------------------------------- Change the shape of the mouse pointer (graphics mode only). DECLARE SUB <shape name> syntax: CALL <shape name> ARROW0 HANDV0 HOURGLASS0 PEN0 MAGNIFYGLASS0 PAINTCUP0 MOUSE0 WHATCH0 ARROW1 Example: CALL HANDV0 'Change pointer to a hand shape. Comments: A zero appended to a shape name denotes a color pointer, A one(1) denotes inverted or non colored pointer. With the registered version you will be able to add new shapes with CVTASM.EXE (if you have a MASM compatible assembler) or delete existing shapes from the library. For a working example see: DEMO4.BAS --------------------------------------------------------------------- Assembly subroutine. Page 3 ChangePointer --------------------------------------------------------------------- Change the shape of the mouse pointer (graphic mode only). DECLARE SUB ChangePointer(Shape$, HotX%, HotY%) Syntax: CALL ChangePointer(Shape$, HotX%, HotY%) Shape$ A 64 byte string, consisting of two 32 byte sections. The first 32 bytes is the screen mask which is ANDed on the screen. The last half containing the cursor mask is then XORed over this. A color cursor (SOLID) can have two colors, white or black, where a non color cursor (TRANS) just inverts with the colored pixels it passes over. HotX% Horizontal hot spot value ranging from 0 - 15. HotY% Vertical hot spot value ranging from 0 - 15. Example: HotX% = 0 ' Upper left corner of new image HotY% = 0 Shape$ = ArrowHead$ ' String containing the bit image. CALL ChangePointer(Shape$, HotX%, HotY%) Comments: The mouse driver uses the hot spot coordinates to determine the location of the pointer. For a working example see: VIEWSHP.BAS --------------------------------------------------------------------- Assembly subroutine. Page 4 DClicBut --------------------------------------------------------------------- Define which button DClicM will check for a double click event. Use in conjunction with: DClicM DEFINE SUB DClicBut(ButtonNum%) Syntax: CALL DClicBut(ButtonNum%) ButtonNum% Tells DClicM which button to check. A value of 1; DClicM will check the left mouse button, a value of 2, the right button will be checked, etc., depending on the number of buttons the mouse may have. Example: CALL DClicRate(9) 'Speed at which DClicM will register a 'double click. There are 18 clock ticks per 'second. The user has 1/2 sec. to double 'click. CALL DClicBut(1) 'DClicM will check the left mouse button. DO CALL DClicM(ButtonNum%, X%, Y%, DClik%) IF DClik% THEN CALL DClikHandler(ButtonNum%, X%, Y%) LOOP Comments: For a working example see: DEMO1.BAS --------------------------------------------------------------------- Assembly Subroutine. See also: DClicM, DClicRate, DClicOn, DClicOff Page 5 DClicM --------------------------------------------------------------------- Poll for a mouse double click event. Use in conjunction with: DClicBut, DClicRate, DClicOn, DClicOff DECLARE SUB DClicM(ButtonNum%, X%, Y%, DClik%) Syntax: CALL DClicM(ButtonNum%, X%, Y%, DClik%) ButtonNum% Returns which button is currently depressed. In the case that a double click has occurred, then ButtonNum% will return the mouse button used to activate the double click. 1 for the left mouse button, 2 for the right button, etc. X%, Y% Current location of the mouse pointer in pixels. In the case that a double click has occurred, then X% and Y% will return the location of the pointer when the event occurred, not the present location. DClik% Returns a -1 if a double click has occurred, else a 0. Example: CALL DClicRate(9) 'Speed at which DClicM will register a 'double click. There are 18 clock ticks per 'second. CALL DClicBut(1) 'Tell DClicM to check the left mouse button. DO CALL DClicM(ButtonNum%, X%, Y%, DClik%) IF DClik% THEN CALL DClikHandler(ButtonNum%, X%, Y%) LOOP Comments: This subroutine returns the same information as GetButtonM if double click checking is turned off. For a working example see: DEMO1.BAS --------------------------------------------------------------------- Assembly Subroutine. See also: DClicBut, DClicRate, DClicOn, DClicOff Page 6 DClicOff --------------------------------------------------------------------- Turn double click off. Use in conjunction with: DClicM DECLARE SUB DClicOff Syntax: CALL DClicOff Default is on. Example: CALL DClicRate(9) 'Speed at which DClicM will register a 'double click. There are 18 clock ticks per 'second. The user has 1/2 sec. to double 'click. CALL DClicBut(1) 'DClicM will check the left mouse button. CALL DClicOn 'Turn on double click checking. DO CALL DClicM(ButtonNum%, X%, Y%, DClik%) IF DClik% THEN CALL DClicOff 'Turn off double click checking. CALL MyHandler(ButtonNum%, X%, Y%) EXIT DO END IF LOOP Comments: If double click is turned off, then the information returned by DClicM will be exactly the same as what the subroutine GetButtonM will return. --------------------------------------------------------------------- Assembly Subroutine. See also: DClicM, DClicBut, DClicRate, DClicOn Page 7 DClicOn --------------------------------------------------------------------- Turn double click on. Use in conjunction with: DClicM DECLARE SUB DClicOn Syntax: CALL DClicOn Default is on. Example: CALL DClicRate(9) 'Speed at which DClicM will register a 'double click. There are 18 clock ticks per 'second. The user has 1/2 sec. to double 'click. CALL DClicBut(1) 'DClicM will check the left mouse button. CALL DClicOn 'Turn on double click checking. DO CALL DClicM(ButtonNum%, X%, Y%, DClik%) IF DClik% THEN CALL DClikHandler(ButtonNum%, X%, Y%) LOOP Comments: If double click is turned off by calling the subroutine DClicOff, then the information returned by DClicM will be exactly the same as what the subroutine GetButtonM will return. For a working example see: DEMO1.BAS --------------------------------------------------------------------- Assembly Subroutine. See also: DClicM, DClicBut, DClicRate, DClicOff Page 8 DClicRate --------------------------------------------------------------------- Set the double click speed. Use in conjunction with: DClicM DECLARE SUB DClicRate(Rate%) Syntax: CALL DClicRate(Rate%) Rate% The speed at which DClicM will detect a double click. There are 18 clock ticks per second. Default is 9, or a 1/2 second. Example: CALL DClicRate(9) 'Speed at which DClicM will register a 'double click. There are 18 clock ticks per 'second. The user has 1/2 sec. to double 'click. CALL DClicBut(1) 'Tell DClicM to check the left mouse button. DO CALL DClicM(ButtonNum%, X%, Y%, DClik%) IF DClik% THEN CALL DClikHandler(ButtonNum%, X%, Y%) LOOP Comments: For a working example see: DEMO1.BAS --------------------------------------------------------------------- Assembly Subroutine. See also: DClicM, DClicBut, DClicOn, DClicOff Page 9 GetButtonM --------------------------------------------------------------------- Check for a mouse button press and get the current mouse pointer location. DECLARE SUB GetButtonM(ButtonNum%, X%, Y%) Syntax: CALL GetButtonM(ButtonNum%, X%, Y%) ButtonNum% Returns a value of 1,2 or 3 etc, depending on which button was pressed and also the number of buttons the mouse may have. X%, Y% Returns the present location of the mouse pointer in pixels. This location refers to the virtual mouse screen coordinates, NOT to the text screen. The upper left corner of the screen is used as a reference point (0, 0). Example: SCREEN 0 'Convert the virtual mouse screen coordinates 'to BASIC's row/column format, in text mode. DO 'Using a character block size of 8 X 8. CALL GetButtonM(ButtonNum%, X%, Y%) Row% = (Y% \ 8) + 1 Col% = (X% \ 8) + 1 LOCATE 1: PRINT Row%; " X "; Col% IF ButtonNum% = 1 THEN 'User pressed the left button. IF ButtonNum% = 2 THEN 'User pressed the right button. LOOP UNTIL LEN(INKEY$) Comments: To convert the virtual mouse screen coordinates to BASIC's row/column format, you must divide X%(column) and Y%(row) by character block size and add 1 to each of these values. For a working example see: DEMO1.BAS --------------------------------------------------------------------- Assembly Subroutine Page 10 GetMotionM --------------------------------------------------------------------- To determine which direction the mouse pointer is moving. DECLARE SUB GetMotionM(X%, Y%) Syntax: CALL GetMotionM(X%, Y%) X% Returns the horizontal value. Y% Returns the vertical value. Example: DO CALL GetMotionM(X%, Y%) Direction$ = "" IF X% > 0 THEN Direction$ = "Right" 'If positive. IF X% < 0 THEN Direction$ = "Left " 'If negative. IF Y% > 0 THEN Direction$ = "Down " 'If positive. IF Y% < 0 THEN Direction$ = "Up " 'If negative. IF LEN(Direction$) THEN LOCATE 5 PRINT Direction$ END IF LOOP UNTIL LEN(INKEY$) Comments: The values returned will range from -32768 to 32768. Positive values shows right or downward movement, and negative values show left or upward movement. --------------------------------------------------------------------- Assembly Subroutine. Page 11 GetPressM --------------------------------------------------------------------- Get button press information for the mouse. DECLARE SUB GetPressM(ButtonNum%, Stat%, Count%, X%, Y%) Syntax: CALL GetPressM(ButtonNum%, Stat%, Count%, X%, Y%) ButtonNum% State which mouse button to get information on. A value of 1 equals the left mouse button and 2 means the right etc, depending on how many buttons the mouse may have. Stat% Returns which button is currently being pressed. Count% Returns the number of button presses since last called. X%, Y% Returns the location of the mouse pointer when the button was last pressed. Example: ButtonNum% = 1 'Check the left button. CALL GetPressM(ButtonNum%, Stat%, Count%, X%, Y%) IF Count% > 1 THEN CALL MySUB(X%, Y%) Comments: NOTE! The values returned in X%, Y% refer to the location of the pointer WHEN the mouse button was pressed, not the current location. The button count is automatically reset to zero each time this routine is called. --------------------------------------------------------------------- Assembly Subroutine. See also: GetReleaseM Page 12 GetReleaseM --------------------------------------------------------------------- Get button release information for the mouse. DECLARE SUB GetReleaseM(ButtonNum%, Stat%, Count%, X%, Y%) Syntax: CALL GetReleaseM(ButtonNum%, Stat%, Count%, X%, Y%) ButtonNum% State which mouse button to get information on. A value of 1 equals the left mouse button and 2 means the right etc, depending on how many buttons the mouse may have. Stat% Returns which button is currently being pressed. Count% Returns the number of button releases since last called. X%, Y% Returns the location of the mouse pointer when the button was last pressed. Example: ButtonNum% = 1 'Check the left button. CALL GetReleaseM(ButtonNum%, Stat%, Count%, X%, Y%) IF Count% > 1 THEN CALL MySUB(X%, Y%) Comments: NOTE! The values returned in X%, Y% refer to the location of the pointer WHEN the mouse button was pressed, not the current location. The button count is automatically reset to zero each time this routine is called. --------------------------------------------------------------------- Assembly Subroutine. See also: GetPressM Page 13 GetSizeM --------------------------------------------------------------------- Get the size the mouse driver's environment. Use in conjunction with: ShowPtrM%, SaveStateM DECLARE FUNCTION GetSizeM% Syntax: Size% = GetSizeM% Size% Returns the size of the mouse driver's environment (in bytes). Example: Size% = GetSizeM% 'Amount of memory needed to hold 'the mouse driver's environment. Buffer$ = SPACE$(Size% * 2) 'Pad buffer with spaces. ErrNum% = ShowPtrM%(Buffer$) Buffer$ = "" 'Release memory. Comments: Use this function to determine buffer(s) size needed by both ShowPtrM% and SaveStateM. For a working example see: DEMO3.BAS --------------------------------------------------------------------- Assembly function. See also: ShowPtrM%, RestoreStateM, SaveStateM Page 14 GetSpeedM --------------------------------------------------------------------- Get the current sensitivity state of the mouse. Use in conjunction with: SetSpeedM DECLARE SUB CALL GetSpeedM(H%, V%, D%) Syntax: CALL GetSpeedM(H%, V%, D%) H% Returns the current horizontal value. Y% Returns the current vertical value. D% Returns double speed threshold value. Example: 'Get and save the current sensitivity state of the mouse. 'Upon ending your program, pass these values to the routine 'SetSpeedM, which will restore the settings back to their 'original state. 'Program startup. CALL GetSpeedM(SaveH%, SaveV%, SaveD%) 'Save old setting. CALL SetSpeedM(50, 50, 80) 'New setting for your 'program's use. 'Program code. CALL SetSpeedM(SaveH%, SaveV%, SaveD%) 'Restore old setting. 'End of program. Comments: Mouse sensitivity is defined as how far the pointer moves per actual movement of the mouse itself. The higher the values in X%, Y% the greater the sensitivity. For a working example see: VIEWSHP.BAS --------------------------------------------------------------------- Assembly Subroutine. See also: SetSpeedM Page 15 HidePointer --------------------------------------------------------------------- Remove the mouse pointer from the screen. Use in conjunction with: ShowPointer DECLARE SUB HidePointer Syntax: CALL HidePointer Example: CALL HidePointer PRINT "A line of text." Call ShowPointer Comments: You must turn off the pointer before doing any drawing or printing on the screen; this will prevent the pointer from being overwritten. It should also be noted that the mouse driver increments a counter each time the pointer is turned off, and decrements that count for each call to turn it back on. This count must equal zero before the driver will turn the pointer back on. For example; if HidePointer is called 3 times, then ShowPointer must also be called 3 times before the pointer will become visible. --------------------------------------------------------------------- Assembly Subroutine. See also: ShowPointer, ShowMPtr Page 16 InitPointer --------------------------------------------------------------------- Initialize the mouse driver to its default state. DECLARE SUB InitPointer(MouseExist%) Syntax: CALL InitPointer(MouseExist%) MouseExist% Returns with the number of buttons on the mouse, if a mouse driver is detected. If no driver is present, a 0 is returned. Example: CALL InitPointer(Num%) IF Num% THEN PRINT "This mouse has "; Num%; " buttons." ELSE PRINT "Unable to detect a mouse driver." END IF Comments: IMPORTANT! - InitPointer should be called after any screen mode changes and MUST be initialized before calling any other mouse routine! In addition to InitPointer initializing the mouse driver's internal variables, it also initializes its own internal variables used by other mouse routines contained in this library. Your program can safely call any of these mouse routines whether a mouse driver has been installed or not. --------------------------------------------------------------------- Assembly Subroutine. Page 17 InWinM --------------------------------------------------------------------- Check if pointer is in a specified area on the screen. DECLARE FUNCTION InWinM(BYVAL x1%, BYVAL y1%, BYVAL x2%, BYVAL y2%) Syntax: InIt% = InWinM(x1%, y1%, x2%, y2%) x1%, x2% Left and right boundaries (in pixels). y1%, y2% Top and bottom boundaries (in pixels). InIt% Returns a -1 if true, else 0. Example: 'Loop until pointer is in an 'area starting in the upper 'left corner of the screen, '100 pixels wide by 100 high. DO InIt% = InWinM(0, 0, 100, 100) LOOP UNTIL InIt% Comments: BYVAL is used here for speed. NOTE! This function will not work properly with a screen resolution of 320 X 200. For a working example see: DEMO4.BAS --------------------------------------------------------------------- Assembly Function. Page 18 RestoreStateM --------------------------------------------------------------------- Restore mouse environment. Use in conjunction with: GetSizeM, SaveStateM DECLARE SUB RestoreStateM(Buff1$, ErrNum%) Syntax: CALL RestoreStateM(Buff1$, ErrNum%) Buff1$ Buffer which contains the mouse driver's environment. ErrNum% Returns a -1, if Buff1$ is smaller than the mouse environment. Example: Size% = GetSizeM% ' Amount of memory needed to ' to hold the mouse ' driver's environment. Buff1$ = SPACE$(Size%) ' Pad buffer with spaces. CALL SaveStateM(Buff1$, ErrNum%) ' Save mouse state. SHELL"XXXX" ' Pass control. CALL RestoreStateM(Buff1$, ErrNum%) ' Restore state. Comments: Use this subroutine to restore the mouse environment after it has been saved by SaveStateM. For a working example see: DEMO3.BAS --------------------------------------------------------------------- Assembly subroutine. See also: GetSizeM, SaveStateM Page 19 SaveStateM --------------------------------------------------------------------- Save the mouse driver's environment in a buffer. Use in conjunction with: GetSizeM, RestoreStateM DECLARE SUB SaveStateM(Buff1$, ErrNum%) Syntax: CALL SaveStateM(Buff1$, ErrNum%) Buff1$ Buffer in which the mouse driver's environment will be saved. ErrNum% Returns a -1, if Buff1$ is not large enough to hold the mouse environment. Example: Size% = GetSizeM% ' Amount of memory needed to ' to hold the mouse ' driver's environment. Buff1$ = SPACE$(Size%) ' Pad buffer with spaces. CALL SaveStateM(Buff1$, ErrNum%) ' Save mouse state. SHELL"XXXX" ' Pass control. CALL RestoreStateM(Buff1$, ErrNum%) ' Restore state. Comments: If your program needs to temporarily pass control to another program or procedure that also uses the mouse and where the mouse state may be altered (such as a video mode change), use GetSizeM along with this subroutine, to save the mouse state first before passing control. When your program has regained control, use RestoreStateM to restore the driver's state. For a working example see: DEMO3.BAS --------------------------------------------------------------------- Assembly subroutine. See also: GetSizeM, RestoreStateM Page 20 SetBoundM --------------------------------------------------------------------- Confine pointer movement to a specified area on the screen. DECLARE SUB SetBoundM(x1%, y1%, x2%, y2%) Syntax: CALL SetBoundM(x1%, y1%, x2%, y2%) x1%, x2% Left and right boundaries (in pixels). y1%, y2% Top and bottom boundaries (in pixels). Example: 'Limit pointer to an area 'starting in the upper left 'corner of the screen, 100 'pixels wide by 100 pixels 'high. CALL SetBoundM(0, 0, 100, 100) Comments: SetBoundM does the same thing as calling both SetHLimitM and SetVLimitM, but does it with only one call. For a working example see: DEMO4.BAS --------------------------------------------------------------------- Assembly Subroutine. See also: SetHLimitM, SetVLimitM. Page 21 SetHLimitM --------------------------------------------------------------------- Define a left and right boundary in which the horizontal movement of the mouse pointer will be confined to. DECLARE SUB SetHLimitM(X%, Y%) Syntax: CALL SetHLimitM(X%, Y%) X% Minimum left limit in pixels. Y% Maximum right limit in pixels. Example: X1% = 0 'Create a window in which the pointer will be Y1% = 100 'confined to. X2% = 0 Y2% = 100 CALL SetHLimitM(X1%, Y1%) CALL SetVLimitM(X2%, Y2%) Comments: If the left value is greater than the right value, this routine will exchange the two. The pointer will then be displayed within these two limits. --------------------------------------------------------------------- Assembly Subroutine. See also: SetVLimitM Page 22 SetPointer --------------------------------------------------------------------- Display the mouse pointer at a new location. DECLARE SUB SetPointer(X%, Y%) Syntax: CALL SetPointer(X%, Y%) X% New horizontal position, in pixels. Y% New vertical position, in pixels. Example: X% = 0 'Upper left corner of the screen. Y% = 0 CALL SetPointer(X%, Y%) Comments: If X% or Y% are outside of any defined limit, such as off the screen, the mouse driver will automatically place the pointer to the nearest legal limit. --------------------------------------------------------------------- Assembly Subroutine. Page 23 SetSpeedM --------------------------------------------------------------------- Set the sensitivity state of the mouse. Use in conjunction with: GetSpeedM DECLARE SUB CALL SetSpeedM(H%, V%, D%) Syntax: CALL SetSpeedM(H%, V%, D%) H% New horizontal value (1 - 100). Y% New vertical value (1 - 100). D% New double speed threshold (1 - 100). Example: 'Get and save the current sensitivity state of the mouse. 'Upon ending your program, pass these values to the routine 'SetSpeedM, which will restore the settings back to their 'original state. 'Program startup. CALL GetSpeedM(SaveH%, SaveV%, SaveD%) ' Save old setting. CALL SetSpeedM(50, 50, 80) ' New setting for your ' program's use. 'Program code. CALL SetSpeedM(SaveH%, SaveV%, SaveD%) ' Restore setting. 'End of program. Comments: Mouse sensitivity is defined as how far the pointer moves per actual movement of the mouse itself. The higher the values in X%, Y% the greater the sensitivity. For a working example see: VIEWSHP.BAS --------------------------------------------------------------------- Assembly Subroutine. See also: GetSpeedM Page 24 SetVLimitM --------------------------------------------------------------------- Define an upper and lower boundary in which the vertical movement of the mouse pointer will be confined to. DECLARE SUB SetVLimitM(X%, Y%) Syntax: CALL SetVLimitM(X%, Y%) X% Minimum upper limit in pixels. Y% Maximum lower limit in pixels. Example: X1% = 0 'Create a window in which the pointer will be Y1% = 100 'confined to. X2% = 0 Y2% = 100 CALL SetHLimitM(X1%, Y1%) CALL SetVLimitM(X2%, Y2%) Comments: If the upper value is greater than the lower value, this routine will exchange the two. The pointer will then be displayed within these two limits. --------------------------------------------------------------------- Assembly Subroutine. See also: SetHLimitM Page 25 ShowPointer --------------------------------------------------------------------- Display the mouse pointer on the screen. Use in conjunction with: HidePointer DECLARE SUB ShowPointer Syntax: CALL ShowPointer Example: CALL HidePointer PRINT "A line of text." Call ShowPointer Comments: You must turn off the pointer before doing any drawing or printing on the screen; this will prevent the pointer from being overwritten. It should also be noted that the mouse driver increments a counter each time the pointer is turned off, and decrements that count for each call to turn it back on. This count must equal zero before the driver will turn the pointer back on. For example; if HidePointer is called 3 times, then ShowPointer must also be called 3 times before the pointer will become visible. --------------------------------------------------------------------- Assembly Subroutine. See also: HidePointer, ShowPtrM Page 26 ShowPtrM --------------------------------------------------------------------- Restore the mouse pointer on the screen. Use in conjunction with: GetSizeM DECLARE FUNCTION ShowPtrM%(Buffer$) Syntax: ErrNum% = ShowPtrM%(Buffer$) Buffer$ ShowPtrM% needs a working space of at least twice the size of the mouse driver's environment. ErrNum% If successful a value of 0 will be returned. If unsuccessful a value of -1 will be returned (Buffer$ was of insufficient size). Example: Size% = GetSizeM% 'Amount of memory needed to hold 'the mouse driver's environment. Buffer$ = SPACE$(Size% * 2) 'Pad buffer with spaces. ErrNum% = ShowPtrM%(Buffer$) Buffer$ = "" 'Release memory. Comments: The purpose of this function is to turn the pointer on (make it visible), whether it has been previously turned off once or multiple times. NOTE! This function does take time so use when speed is not critical. For a working example see: DEMO2.BAS --------------------------------------------------------------------- Assembly function. See also: GetSizeM, ShowPointer Page 27