Flicker free bitmap

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#100

From: Fabio
Date: Mon, 20 Jan 2003 10:26

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I need to write a lot of data on a window using the "arc" function
with a very high data rate (about 1 arc every 3 or 4 msec). On the
same window there shall be 10 objects like bitmap or icon (about
50x50, at least 3 colors plus transparence). When the "arc" data is
drawn in the same position of the graphics object these have to remain
on the screen (graphics object over "arc" data) except for the
trasparence zone. The graphics object have to be flicker free.
I resolved this problem using X-11 using 2 Device Context, one with 6
bits (for the "arc" data") and the other with 2 bits. When I write in
the first DC the mask don't allow to write in the second one.
Anyone know how to resolve this problem in MS Windows NT (or 2000); at
the moment I'm using Borland Builder C++ 3.0

Best Regards,

Fabio.

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From: wassge@interbusiness.it (Fabio)
Newsgroups: comp.graphics.misc,borland.public.cppbuilder.graphics
Subject: Flicker free bitmap
Date: 20 Jan 2003 02:26:52 -0800
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