OS/2 Shareware BBS: 5 Edit/05-Edit.zip/PMVIEW5C.ZIP/PMVIEW.HLP

OS/2 Help File | 1992-04-06 | 12KB | 378 lines

ΓòÉΓòÉΓòÉ 1. Help for PM File View ΓòÉΓòÉΓòÉ

PM File View is a file browsing utility for the OS/2 Presentation Manager.  It
displays files either in ASCII or in hex (see Display ASCII, Display Hex-ASCII,
and Display Hex-EBCDIC), and additionally permits searching by phrase or
jumping directly to a specified point in a file (see Find, Repeat Find, and
Goto).

PM File View can be invoked either from an OS/2 window or from the full-screen
command line.  If no filename is entered initially, or the filename contains
wildcards, a dialog box is opened listing the available drives and files from
which a file may be selected (see Open). PM File View can also be made a part
of a Desktop Manager group, in which case it can be selected from a menu.
Adding the optional /i switch, either at the command line or as a parameter of
the Program Properties menu, will load PM File View with a specified filename
and immediately shrink it to an icon at start-up, making the file information
instantly available with the double-click of the mouse on the icon (see Command
Line Options). Note that even if PM File View is started from a menu with the
"Minimized" Initial window size option selected, it will still be necesssary to
specify the /i switch as a parameter to prevent the initial File Open dialog
box from popping up.

At any time, a file can also be viewed by "dragging" its file name from a File
Manager list and "dropping" it on the PM File View icon or window in the same
manner that files can be "dragged" and "dropped" on the Print Manager. The same
can be done with any file object in an application supporting the public OS/2
1.3/2.0 Drag and Drop protocol.  You should be aware, however, that if a list
containing more than one file name is dragged and dropped, only the first file
in the list will be displayed.

The selected filename is shown in the title bar of the display window and as
the title of an icon when the window is minimized.  A status line containing
the file position (line number or byte offset) can optionally also be displayed
at the bottom of the display window (see File Position).

Search menu options for PM File View permit entering either a phrase or an
offset to which the utility will jump. Configuration options permit customizing
the screen color, display font size, display format, tab stop setting, and
whether or not the scroll bars and/or the file position status line should be
shown (see also Font Size). These settings become program defaults, but may be
changed at any time.


ΓòÉΓòÉΓòÉ 1.1. Keys Help ΓòÉΓòÉΓòÉ

 F1
           Displays Help for Show Picture.

 Esc
           Displays the Open File dialog box if a dialog box is not displayed.
           Cancels (removes) a file dialog box if one is displayed. (see File
           Open)

 The following keys may be used only when there are no dialog boxes displayed:

 F3
           Terminates PM File View. (see File Exit)

 Ctrl-N
           Closes the current file being displayed, and brings up the Open File
           dialog box for selection of another file. (see File New)

 Ctrl-O
           Displays the Open File dialog box. (see File Open)

 Ctrl-F
           Displays the Find dialog box for entry of search parameters, and
           then searches the file for the specified text or hex string. (see
           Search Find)

 Ctrl-R
           Repeats the last Find. (see Search Repeat Find)

 Ctrl-G
           Displays the Goto dialog box for entry of a file offset, and then
           positions the file offset line at the top of the display window.
           (see Search Goto)

 Ctrl-C
           Displays a dialog box for configuring the display appearance. (see
           Display Configure)

 Ctrl-A
           Displays the file in ASCII format. (see Display ASCII)

 Ctrl-H
           Displays the file in Hexadecimal - ASCII format. (see Display
           Hex-ASCII)

 Ctrl-E
           Displays the file in Hexadecimal - EBCDIC format. (see Display
           Hex-EBCDIC)

 Ctrl-P
           Toggles the inclusion / exclusion of a file position status line in
           the display window. (see Display File Position)

 Ctrl-B
           Toggles the inclusion / exclusion of scroll bars in the display
           window. (see Display Scroll Bars)

 Ctrl-S
           Depending on the display, either toggles the font size (between
           large and small) or displays a dialog box for selecting a font size.
           (see Display Font Size)

 
           Moves the display window down one line in the file.

 
           Moves the display window up one line in the file.

 ΓöÇ
           Moves the display window one character to the right.

 ΓöÇ
           Moves the display window one character to the left.

 Page Down
           Moves the display window down one screen in the file.

 Page Up
           Moves the display window up one screen in the file.

 Home
           Moves the display window to the top of the file.

 End
           Moves the display window to the end of the file.


ΓòÉΓòÉΓòÉ 1.2. Open ΓòÉΓòÉΓòÉ

Use File Open... to select a file to be displayed.

This selection will open a dialog box, from which a file can be selected or
specified in the entry box of the dialog.  Wildcards specified in the entry box
will filter the list of filenames displayed in the dialog box.

Shortcut keys: Ctrl-O, Esc


ΓòÉΓòÉΓòÉ 1.3. New ΓòÉΓòÉΓòÉ

Use File New... to close the current file and display an Open File dialog box.
As PM File View does not allow other applications to write to the file being
displayed, this selection is useful when it is needed to make the currently
displayed file available to other programs for writing without exiting PM File
View or opening another file.

Shortcut key: Ctrl-N


ΓòÉΓòÉΓòÉ 1.4. Exit ΓòÉΓòÉΓòÉ

Selection of File Exit will terminate PM File View.

Shortcut key: F3

(The shortcut key cannot be used when a dialog box is displayed)


ΓòÉΓòÉΓòÉ 1.5. Find ΓòÉΓòÉΓòÉ

Use Search Find... to locate a text or hexadecimal string in the displayed
file.  The line containing the string becomes the top line in the display
window.

Use the Find dialog box to enter the string to be located. The string entered
is assumed to be ASCII text unless the Hex String box is checked.  If it is
desired to find the ASCII text exactly as entered in the dialog box, check the
Case Sensitive box; otherwise, the upper / lower case of characters in the
search string and the file will be ignored in their comparison, e.g. an a will
match an A.

Hexadecimal strings may be entered with or without spaces between bytes and
with upper and/or lower case hexadecimal digits. For example,

6FAC880D

can also be entered as

6f Ac 88 0d

However, be aware that the hexadecimal string entry

6 f a c 8 8 0 d

will be treated as

060f0a0c0808000d

The search will start from the current file position (the top line in the
display window) unless the Search from Top box is checked, in which case the
search is started from the beginning of the file.

Shortcut key: Ctrl-F


ΓòÉΓòÉΓòÉ 1.6. Repeat Find ΓòÉΓòÉΓòÉ

Use Search Repeat Find to find the next occurrence of the last string entered
in the Find dialog box.  Note that if the Search from Top box was checked when
the last Find was executed, repeated use of the Repeat Find selection will
always go to the same point in the file -- the first occurrence of the search
string in the file.  In other words, the Repeat Find command is most useful
when the Search from Top box in the Find dialog box is not checked.

Shortcut key: Ctrl-R


ΓòÉΓòÉΓòÉ 1.7. Goto ΓòÉΓòÉΓòÉ

Use Search Goto... to move the display window to a specified offset position in
the file.  The offset position and type of offset are entered in a Goto dialog
box when the Goto... selection is invoked.  If a byte offset is specified, the
character in the file at the offset position is displayed at the top row and
leftmost column of the display window; an offset of zero corresponds to the
first character (byte) in the file.  If the offset is a line number, n, then
the nth line in the file is displayed as top line in the display window (the
first line in the file is line number 1).

To specify a byte offset, enter the offset in the dialog box and click on the
either the Decimal button if the offset is a decimal number, or the Hexadecimal
button if the offset is a hexadecimal value.  A line offset is specified by
typing the line number in the dialog box entry field and clicking on the Line
No. button.

The actual positioning of the file to the specified offset occurs when the Goto
button is clicked or the Enter key is pressed.  Clicking on the Cancel button
or pressing the Esc key terminates the Goto dialog without performing any file
positioning.

Shortcut key: Ctrl-G


ΓòÉΓòÉΓòÉ 1.8. Configure ΓòÉΓòÉΓòÉ

Use Display Configure... to open a dialog box to change and save various
display characteristics, including the window text and background colors, font
size, file display mode, number of characters between tab stops, whether or not
scroll bars should be included in the display, and whether or not a file
position status line should be displayed.

Pressing the Enter key or clicking on the OK button will change the display
according to the selections in the dialog box.  If the Save values to disk box
is checked, the selections will also be saved to disk.  Then, each time PM File
View is started, the saved selections will be invoked. If the Save window
position box is checked, the current size and position of the PM FIle View
window will also be saved and then will be restored each time the program is
started.

If the Cancel button is clicked or the Esc key is pressed, the display is not
changed, and the settings are not saved to disk.

Shortcut key: Ctrl-C


ΓòÉΓòÉΓòÉ 1.9. Display ASCII ΓòÉΓòÉΓòÉ

Select the Display Display ASCII pull-down menu item to view the file as
characters and symbols.  This is the normal mode to view text files.
Non-text/ASCII files viewed with this selection will appear as gibberish and
will likely not have meaningful line layouts; use one of the Hex display modes
for these types of files. (see Display Hex-ASCII, and Display Hex-EBCDIC).

Shortcut key: Ctrl-A


ΓòÉΓòÉΓòÉ 1.10. Display Hex-ASCII ΓòÉΓòÉΓòÉ

Select the Display Display Hex-ASCII pull-down menu item to view the file as
hexadecimal bytes with their corresponding ASCII characters and PC symbols.
Each line contains three sections: (1) an eight-digit byte file offset of the
first byte on the line; (2) sixteen hexadecimal bytes of the file; and (3) the
ASCII characters or PC symbols corresponding to the hexadecimal values.

This display format is most often used with non-text PC files.  For text/ASCII
and IBM Host files, see Display ASCII, and Display Hex-EBCDIC.

Shortcut key: Ctrl-H


ΓòÉΓòÉΓòÉ 1.11. Display Hex-EBCDIC ΓòÉΓòÉΓòÉ

Select the Display Display Hex-EBCDIC pull-down menu item to view the file as
hexadecimal bytes with their corresponding EBCDIC characters.  Each line
contains three sections: (1) an eight-digit byte file offset of the first byte
on the line; (2) sixteen hexadecimal bytes of the file; and (3) the EBCDIC
characters corresponding to the hexadecimal values.

This display format is most often used with IBM Host and DisplayWrite DOC and
RFT files.  For text/ASCII and non-text PC files, see Display ASCII, and
Display Hex-ASCII.

Shortcut key: Ctrl-E


ΓòÉΓòÉΓòÉ 1.12. File Position ΓòÉΓòÉΓòÉ

Use the Display File Position menu item to toggle the display of the line
number or byte offset status line at the bottom of the display window.  If this
item is not checked, selecting it will display the status line; if this item is
checked, selecting it will remove the line.  Note: Displaying the File Position
status line with Display ASCII selected may slow down response, particularly
with large files, as the lines are counted while loading and moving through the
file.

With Display ASCII selected, the status line will display the number of the
line in the file currently displayed at the top of the display window, along
with the total number of lines in the file.  The latter number may be one
greater than similar line totals displayed in line editors, as PM File View
considers anything after the last line-feed, including the end-of-file (hex 1A)
character, to be another line. The line number starts with 1.

With Display Hex-ASCII or Display Hex-EBCDIC selected, the status line will
display in decimal format the offset into the file of the first byte displayed
on the top line of the display window.  Thus the first byte of the file is
numbered 0.  Also displayed on the status line, in both decimal and hexadecimal
formats, is the offset number of the last byte in the file.  Therefore, this
latter number is one less than the number of bytes in the file.

Shortcut key: Ctrl-P


ΓòÉΓòÉΓòÉ 1.13. Scroll Bars ΓòÉΓòÉΓòÉ

Use the Display Scroll Bars pull-down menu item to remove the the scroll bars
from the PM File View window if they are displayed, or to add scroll bars if
they are not present.

Removing the scroll bars will allow more of the file to be displayed, but the
keyboard (arrow, page, Home and End keys) must then be used to move through the
file.

Shortcut key: Ctrl-B


ΓòÉΓòÉΓòÉ 1.14. Font Size ΓòÉΓòÉΓòÉ

Use the font size pull-down menu item to change the font used to display the
file.  Selection of this item will then bring up the Font Size list box /
dialog window, from which a font can be selected.

The Display  Configure... menu item can also be used to set the font size for
any display.

Shortcut key: Ctrl-S


ΓòÉΓòÉΓòÉ 1.15. Command Line Options ΓòÉΓòÉΓòÉ

PM File View is invoked with the following syntax (the parameters must be
separated by at least one space):

PMVIEW [filename.ext] [/i] [/M]

where:

 filename.ext
           optionally is the name of a file to be displayed.  If a filename.ext
           is not given or contains wildcards, PM File View displays the Open
           File dialog box on start-up. If wildcards are included in the
           filename.ext, only files which meet the wildcard criteria are listed
           in the dialog box.

 /i
           is an optional parameter which causes PM File View to start up as an
           icon. Note that filename.ext must be given when this option is used.

 /M
           is an optional parameter which causes the Minimize button to be
           excluded from the frame window.  This option is used only in special
           circumstances where it is necessary to prevent the inadvertent use
           of the Minimize button as a "Close" button.