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CDC::InvertRgn 

Inverts the colors in the region specified by pRgn.


BOOL InvertRgn(
   CRgn* pRgn 
);

Parameters

pRgn

Identifies the region to be inverted. The coordinates for the region are specified in logical units.

Nonzero if the function is successful; otherwise 0.

On monochrome displays, the function makes white pixels black and black pixels white. On color displays, the inversion depends on how the colors are generated for the display.

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