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OS/2 Shareware BBS: 11 Util
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11-Util.zip
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SETLINES.ZIP
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SETLINES.DOC
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1988-05-13
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1KB
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33 lines
SETTING THE VGA DISPLAY FOR 50 LINES
The file here, LINES.EXE, toggles the VGA display between 50 lines and 25 lines
in protected mode. The setting is effective only for the particular screen
group that the program is run in; other partitions remain in whatever format
they were started.
Running the program repeatedly in the same partition toggles between the two
formats. Since the MODE.COM file is bound, the OS/2 command 'mode co80' has
almost the same effect as running LINES.EXE, except that when you look at it
MODE.COM does not really support the VGA at all.
For example, the default color/text mode for VGA is a 720 x 400 mode called
mode 02. The command 'mode co80' actually sets the screen to mode 03 which
was the default color text mode on the CGA/EGA.
And, the command 'mode co40' sets the screen to mode 01, a CGA 320 x 200 mode,
instead of the VGA 40 column mode named mode 00 which is 360 x 200, not to
mention the fact that MODE.COM support no additional modes.
LINES.EXE provides a way two switch between two different number of text lines
in mode 02 on the VGA.
BLUE.EXE simply sets the palettes and border of the VGA display to provide
the OS/2 command interpretor (cmd.exe) with a pleasing interface.
Harve Schiffman
Upland, Ca
1988