绘制时在MFC中的问题

Question

我想移动我画的照片并擦拭原图。我该怎么办？

Answer 1

The easiest solution for this is to keep the original picture in a memory DC . Draw the image to it, then BitBlt it to the screen. When you want to move it, erase your window and BitBlt it again - now at the new location.