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Software Vault: The Gold Collection
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Software Vault - The Gold Collection (American Databankers) (1993).ISO
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SCROLL.DOC
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1993-01-23
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Scroll-Lock version 0.01 1
Scroll-Lock is a simple program that monitors the keyboard and
makes the scroll-lock key work as it is supposed to, i.e. it
freezes screen output when scroll-lock is pressed and then
releases it when scroll-lock is pressed again. It works just
like F1 on a DEC VT-2xx terminal.
Since the PC keyboard does not have a hold-screen indicator, such
as the LED on the VT-220, Scroll-Lock displays a message in
reversed video in the upper right-hand corner of the screen. The
message "Hold Screen" appears until the screen is released and
then the text under the message is restored.
To activate Scroll-Lock just execute it. Scroll-Lock will
install in your computer and remain there until the computer is
booted. Scroll-Lock tries to detect duplicate installation
requests BUT if you load another program that alters the video
BIOS interrupt, such as Sidekick(tm), Scroll-Lock will not be
able to find itself and will install another copy. Not
recommended.
Scroll-Lock requires MS-DOS 2.xx or a compatible operating
system, such as PC-DOS 3.10, and IBM-PC hardware equivalence
is also required. Specifically, Scroll-Lock looks at the
keyboard CAPS STATE byte directly and access the video regen
buffer directly. Scroll-Lock will have no effect on
input/output redirection.
Oh yes, this program is in the public domain, i.e. you should
not try and sell it but you are free to give to whom ever you
desire to have it.
Finally, Scroll-Lock is written in 8088 assembler and the single
source file was assembled with Microsoft's MASM version 3.00 and
linked with Microsoft's 8086 Object Linker version 3.02, then
converted to the COM format with EXE2BIN.
Any questions? Contact me via Compuserve at 74775,755,
GEnie at JOHNCOOPER, DELPHI at JOHNCOOPER (I think), or (LAST
RESORT) John Cooper, 10070 Westpark #821, Houston, Texas 77042.
Sidekick is a trademarked name of Borland International Corp.
JohnC.
Written by John Cooper, December 85