I am trying to draw 2 bitmap images on top of each other. 1 is a background image that only changes occasionally and the other is a foreground image the moves around a lot.
The foreground image is usually an ellipse. But when I show it I always end up with the corners of the constraining rectangle being shown!
I have included some basic code that demonstrates what I mean.
How can I show two bit maps with the top one only showing the exact shape I require (without gray corners).
Also if I want to remove the foreground image from being seen do I need to redraw the entire background? or can I just redraw the bit where the foreground image was. or can I just hide the foreground image somehow?
This maybe a basic question - Graphics are a new area to me! Many thanks in advance!
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