Hi,
I have a child CWnd object. Using SetWindowLong I have set WS_EX_LAYERED | WS_EX_TRANSPARENT.
The parent has a map as background. When I create the child I can see the map beneath as expected. When I move the object the initial image is moved within the child. If change the size of the child window the image in the child is refreshed and shows correctly what is beneath. If I just change the size this is redrawn correctly.
Can anyone explain why OnSize appears to work correctly and OnMove doesn't.
many thanks
