From:	"A.Appleyard" <A DOT APPLEYARD AT fs2 DOT mt DOT umist DOT ac DOT uk>
Organization:	Materials Science Centre
To:	DJGPP AT DELORIE DOT COM
Date:	Wed, 29 May 1996 15:54:18 GMT
Subject:	Windows for djgpp
Message-ID:	<16BEEA922D5@fs2.mt.umist.ac.uk>

  When I run a djgpp program from Windows, and I run it in a `DOS box' window
and not full screen, the program thinks that the DOS box is the full screen.
  I just tried running in a DOS box under Windows a program that I wrote that
makes graphics. When the program tried to change screen mode to the graphics
mode, Windows swore at me and changed the job from box mode to full-screen
mode.
  It seems to me that a start at implementing djgpp for Windows would be for
me to know how a djgpp program could:-
  (0) Detect whether it was running under Windows or not.
  (1) Not create a DOS box but run directly under Windows.
  (2) Find the screen mode & the apparent address of the start of the screen:
it could do all screen-saving and screen-restoring itself if it had to.
  (3) Call function n from Windows function-list qwerty, e.g. CHECKRADIOBUTTON
(checks a specified button and removes checks from all others) is #96 in
Windows function-list USER.EXE
  (4) Access Windows fonts etc: this I suspect is included in (3).
  (5) Access Windows's various standard internal mode etc parameters.

  P.S. I have a list of Windows function names and what number in what file
they are (but not their parameter patterns); I found it in WINASS (Assembler
for Windows) which I bought.

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