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comp.windows.x Frequently Asked Questions (FAQ) 7/7
Section - 181) Why does the pixmap I copy to the screen show up as garbage?

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Top Document: comp.windows.x Frequently Asked Questions (FAQ) 7/7
Previous Document: 180) Why doesn't the shared-memory extension appear to work?
Next Document: 182) How do I get the width/height of an existing pixmap?
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	The initial contents of pixmaps are undefined.  This means that most
servers will allocate the memory and leave around whatever happens to be there 
-- which is usually garbage.  You probably want to clear the pixmap first using
XFillRectangle() with a function of GXcopy and a foreground pixel of whatever 
color you want as your background (or 0L if you are using the pixmap as a 
mask). [courtesy Dave Lemke of NCD and Stuart Marks of Sun]

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Top Document: comp.windows.x Frequently Asked Questions (FAQ) 7/7
Previous Document: 180) Why doesn't the shared-memory extension appear to work?
Next Document: 182) How do I get the width/height of an existing pixmap?

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Last Update March 27 2014 @ 02:12 PM