181) Why does the pixmap I copy to the screen show up as garbage?


	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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Last Update October 22 2009 @ 05:36 AM