public void X11FixesSubtractRegion (int dest, int src1, int src2) {
Request request = new Request (display, major_opcode, 14,4);
request.write4 (src1);
request.write4 (src2);
request.write4 (dest);
display.send_request (request);
}
public void X11FixesIntersectRegion (int dest, int src1, int src2) {