TCopyMode value : copies the source bitmap to the canvas.
cmSrcCopy = SRCCOPY;
Graphics
cmSrcCopy is a TCopyMode value used in the TCanvas CopyMode property.
The CopyMode property is used by the CopyRect routine when copying an image from another canvas onto the current canvas.
With cmSrcCopy, the source pixels are written unchanged to the target rectangle.
CopyMode
CopyRect
TCopyMode