Mail Archives: djgpp/1998/02/07/23:45:47
From: | jromano AT teton DOT Mines DOT EDU (Jean-Luc Romano)
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Newsgroups: | comp.os.msdos.djgpp
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Subject: | Polling busy video memory
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Date: | 7 Feb 1998 19:15:20 GMT
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Organization: | Colorado School of Mines
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Lines: | 24
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Message-ID: | <6bibs8$l0i$1@herald.Mines.EDU>
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NNTP-Posting-Host: | teton.mines.edu
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To: | djgpp AT delorie DOT com
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DJ-Gateway: | from newsgroup comp.os.msdos.djgpp
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Hi... I have another question for all you yet:
Does there a function in DJGPP or Allegro that returns whether
the video memory is busy or not?
Something along the lines of:
if ( is_video_memory_busy() )
printf("Still writing to video memory.\n");
else
printf("Video memory is available for use.\n");
I figure something like this would be useful in writing the
screen buffer to the screen only when the screen is available, so
the program doesn't have to halt until it can blit the video buffer
again (if that made any sense).
Thanks.
Jean-Luc Romano
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