RAD Studio VCL Reference
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TCopyMode value : copies the inverted source bitmap to the canvas.
cmNotSrcCopy = NOTSRCCOPY;
cmNotSrcCopy = NOTSRCCOPY;
cmNotSrcCopy 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 cmNotSrcCopy, the source pixels are inverted before being written to the target rectangle. The existing target rectangle contents are ignored and overwritten.
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