From: gautam AT interlog DOT com (Gautam N. Lad)
Newsgroups: comp.os.msdos.djgpp
Subject: BITMAP in Allegro
Date: Sun, 14 Sep 97 01:30:23 GMT
Organization: InterLog Internet Services
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To: djgpp AT delorie DOT com
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Hi,
I don't know if this is already in Allegro's DOC, but here goes.
I want to write something onto 'screen', but before I do, I want to
save the portion of the screen that will be overwritten.  
What I mean is, I've created my own GUI routines, and when a dialog box is 
activated, I want to save only the area of the screen the dialog covers.  Once the 
dialog box goes away, I want to put the original portion back.

How do I do this, without getting the entire screen, and doing a double buffer.
I only want to do a portion double buffer.  Does this have anything to do with 
sub bitmaps?

Any suggestions!?!?
Bye!

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