[Mono-winforms-list] Copy rather than drawing an image to a graphics object?

cs_eps christian.schmid at eps.ch
Wed Jan 5 09:25:40 EST 2011

Thanks for your answer!
Right, I could clear/redraw the control only partially. This would reduce,
but not completely avoid flicker and would raise the complexity of the code.

I'm still looking for copying, instead of drawing. I just saw that cairo
uses the CAIRO_OPERATOR_OVER compositing operator by default, but it could
be set to CAIRO_OPERATOR_SOURCE before drawing my buffer and then set it

Is that a way? How can it be realized without modifying the
System.Drawing.Graphics class (It still should build with .NET).

Stifu wrote:
> Hi,
> How about defining clip regions for the parts that should be transparent,
> before calling Clear?
> However, I remember getting into issues doing something similar with Mono.
> It worked fine with .NET, though.
> See: https://bugzilla.novell.com/show_bug.cgi?id=492299

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