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Custom windows and NSWindowBackingLocationVideoMemory

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Custom windows and NSWindowBackingLocationVideoMemory

Subject: Custom windows and NSWindowBackingLocationVideoMemory
From: Michael Vannorsdel <email@hidden>
Date: Sun, 29 Mar 2009 06:23:47 -0600

I have a custom shaped window that refuses to use VRAM as its backing buffer. It's a relatively small borderless window with a semi transparent rounded rect shape. Are there certain things that will prevent a window from using VRAM on supported hardware? Other stock windows do this just fine. This window is also set as a child window for a larger one; the custom window is used as an informational popup. The parent window is a stock sheet which is not in VRAM (which I don't mind) if that matters. _______________________________________________

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