CarnegieMellonGraphics2
Typedef Style::RasterOp

Possible raster operations

COPY_OP	Simply draw the color, default behavior
INVERT_OP	Invert the drawing surface's color
XOR_OP	XOR drawing surface with color
AND_OP	AND drawing surface with color
OR_OP	OR drawing surface with color

RasterOp

public typedef enum { COPY_OP, INVERT_OP, XOR_OP, AND_OP, OR_OP } RasterOp;