QHow do I get TextEdit to draw over a background image? Whenever TextEdit redraws the text, it erases the background image.
ATo get TextEdit not to erase the background when it redraws, you need to
replace two QuickDraw bottleneck routines -- StdRect and
StdRgn -- with your own custom versions. Your routines will check to
see if the operation to be performed is erase, and if so, your routine draws
the image you want to show through the TextEdit area, instead of erasing the
area to the current background color. A code snippet called "TE Over
Background" shows you how to accomplish this. You can find it on the Developer
Tool Chest CD: Dev.CD Feb 96 TC:Sample Code:Snippets:QuickDraw:TE Over
Background, or at
http://dev.info.apple.com/source/code/Snippets/QuickDraw/TE_Over_Background/TESample.c.html.