Quartz does not provide any bottleneck support like QuickDraw. Maybe
there are other ways to accomplish what you are doing.
haroon
On May 19, 2005, at 3:37 AM, Anshul Makkar wrote:
Hello,
I want to develop a filter that can filter all the drawing
calls ie all of the drawing calls that are being gnerated should
go through our filter.
While I was going through the Quartz help I figured out
functions like CopyBits etc that are drawing functions.
What I have assumed is that drawing calls that are generated by
the application , will call some of the APIs of quartz library.
So we can trap those calls and filter the contents of the
buffer and further pass the buffer to the lower layer. eg If I can
trap the call of CopyBits that is generated from OS , modify
the source buffer which is one of the parameter and then further
pass the call further on ...
Whether the above task is possible. IF yes then where to
place our filter. Any sample code etc can help us .
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