Re: Flicker free bitmap

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#101

From: Danny
Date: Tue, 21 Jan 2003 05:24

22 lines
2175 bytes

Making your Form or Panel in which your image resides DoubleBuffered
can eliminate the problem of flickering


"Fabio" <wassge@interbusiness.it>
???????:ed25aff5.0301200226.7d60b315@posting.google.com...
> 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: "Danny" <changcc@phys.sinica.edu.tw>
Newsgroups: comp.graphics.misc,borland.public.cppbuilder.graphics
Subject: Re: Flicker free bitmap
Date: Tue, 21 Jan 2003 13:24:56 +0800
Organization: Computing Center, Academia Sinica
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