transparent background?

i need to know how to place a bitmap over another bitmap, then making the background of the upper bitmap transparent so that i can see the lower bitmap...
NicholasAsked:
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HeapsterCommented:
There are several approaches you might try taking;
1) I Presume you've tried brushcopy with the brush colour being your transparent color.
2) You could try using a Timage list which has a Transparent property, ( I found the TImage list does not have certain properties available at run-time).
3) Surf the Net until you hit one of the multitude of tranparent bitmap components, i.e. the delphi super page.

All of these approaches have worked for me, except in the case below:
Problem:If you are trying to stretchdraw the image then i wouldn't mind knowing how (if you ever) you achieve this.

Good Luck.    The Heapster.
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