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Normal Topic Question about how MindFusion paints... (Read 1147 times)
consolejoker
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Question about how MindFusion paints...
May 7th, 2008 at 12:53pm
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I noticed that no matter how much I force re-paints in my diagram canvas, there seems to be no kernel CPU time being used. Typically whenever you do a lot of drawing through GDI, you are going to have to move between user mode and kernel mode, since GDI sits within Ring 0. What is the code doing to avoid this?
  
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Stoyo
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Re: Question about how MindFusion paints...
Reply #1 - May 7th, 2008 at 6:31pm
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How exactly are you force repainting the canvas? I don't think the control code does anything unusual, apart from caching the rendered items in a back-buffer bitmap, and copying the bitmap to the screen when the diagram contents should be rendered.
  
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