TCopyMode value : combines the inverted source bitmap with the image on the canvas by using the Boolean OR operator.
cmMergePaint = MERGEPAINT;cmMergePaint = MERGEPAINT;Graphics
cmMergePaint 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 cmMergePaint, the source pixels are inverted before being logically ORed with the destination pixels.
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