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WHATSNEW.193
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1993-03-07
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Version 1.93 (2/28/93)
=======================
* Added an interrupt 33h handler which may be used by starting VGAsave
with /int33 to resolve the mouse problems reported by several users
The interrupt 33h handler is not installed as a default since it
increases the resident memory requirement of VGAsave to 448 bytes.
See the section in the doc entitled "Mouse Problems" before using
the /int33 switch.
* The rstmouse utility is no longer needed with windows 3.0 and is
no longer distributed with VGAsave. VGAsave now will reset the
mouse each time /on or /m+ is used. This is necessary for the
int 33h handler to function properly.
* Special thanks to Eduardo L. Franco and Richard E. Roda for testing
the betas that never seemed to end. Without their help, the mouse
problem probably wouldn't have been resolved.
* Also thanks to Gene Ressler who independently confirmed the results of
my investigation into the interrupt 33h handler.
Version 1.92 (2/7/93)
======================
* This version was not officially released. Only a few pre-release
copies were mailed out. If you have version 1.92 or one of the
1.92 betas, download version 1.93.
* Added a /mirq switch that allows the user to manually specify the
IRQ line VGAsave is to use for the mouse. This allows VGAsave
better compatibility with older mouse drivers that do not report
the IRQ line used by the mouse via an int 33h call. But, you
have to have to get the mouse IRQ either from some memory mapping
software or from the mouse docs before you use the /mirq switch.
* If you have experienced problems with the mouse in the previous
version of VGAsave, make sure you read the section entitled
"Mouse Problems" in the doc file
* Added a /unblank switch to unblank the screen from batch files.
If you want you can now use 'VGAsave /now' to blank the screen,
run some program(s), and use 'VGAsave /unblank' to restore the
screen when done. This could also be useful at the command line
with DOS 5 i.e.
c:\>SlowProgram<ctrl-t>VGAsave /unblank
* Added more hot keys. Alt-A through Alt-Z, and Alt-0 to Alt-9 are
now possible hot keys for VGAsave.
* Looked into the possibilities of allowing VGAsave to recognize the
shift, alt, ctrl, etc... keys to unblank the screen. However, it was
found that adding this feature to VGAsave interferes with the hot key.
So, this was not and probably will never be implemented.
* Decreased the resident memory requirement of VGAsave slightly.
Version 1.91 required 368 bytes. Version 1.92 requires 352.
16 bytes is 16 bytes. :)
VGAsave 1.91 (8/4/92)
=====================
* Initial release.
For the Future
==============
If I could ever find out what int 2fh call windows makes when it
starts and ends (if it does use an int 2fh call), I would like
to have VGAsave recognize that windows is coming on line and automatically
disable itself and re-enbale itself upon return to DOS.
Anybody have ideas or sources of documentation to make VGAsave windows
aware?
I dunno. Maybe it would be best just to leave VGAsave the way it
is since this will increase the resident memory requirement, /off
and /on work fine.
Acknowledgements
================
I'd like to thank all the people who from the net who sent mail
describing the problems that they were having.
I'd also like to thank all the folks who dropped me a note saying that
they liked the program and everything was working fine.