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Simtel MSDOS 1992 June
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unblink2.arc
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UNBLINK.DOC
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1988-10-14
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[from SIMTEL20's PD:<MSDOS.SCREEN>UNBLINK.ARC
This utility can be used to change the cursor from blinking to
non-blinking and back again. When it is in the non-blinking
mode the output to the screen will be a little slower, however.
v1.2
Toad Hall disassembly and tweak
- Tweaked a bit, cleaned up code.
- Moved a bunch of install-time data and code out of TSR code
to reduce TSR code size.
- Can't test with color (no color card). Seems to work just fine on
my PC-DOS 3.1 system w/Hercules-compatible monographics card, both in
monochrome and CGA-emulation mode.
This utility steals Interrupt vectors 9, 10H, 20H, and 28H.
Installed size/memory requirements:
v1.1: 1984 bytes (232 16-byte paragraphs)
v1.2: 960 bytes (168 16-byte paragraphs)
Incidentally, this utility uses the User Interprocess Communications
area (bytes 0:04FEH and 0:04FFH), the first one I've seen!
Hope no one else (important) is using these two bytes! The unique flags
used for installation flagging are:
0:04FEH - 'b'
0:04FFH - 1
(obviously the version number (1.1b). These installed flags are NOT
changed in my tweaked version.
Rights, copyright, etc. remain with original authors. (And, NO,
I won't release the disassembled/tweaked source code.) Of course,
you take full responsibility for using the tweaked v1.2; I disclaim
any and all responsibility for any bad effects, losses, etc.
Donno what you're gonna do about the "registration bounty" offered
(see the help screen). The version I received had no serial number,
so there's no one to credit!
Usage:
UNBLINK gives short help screen, doesn't install
UNBLINK /i Copyright notice display, goes TSR.
(Cursor might not instantly disappear, but it will!
To toggle disappearing/normal cursor:
Press the ALT key three times, then the character 'u'.
David Kirschbaum
Toad Hall
kirsch@braggvax.ARPA