xor_mode - Shortcut for toggling xor drawing mode on and off. Allegro game programming library.
#include <allegro.h> void xor_mode(int on);
This is a shortcut for toggling xor drawing mode on and off. Calling xor_mode(TRUE) is equivalent to drawing_mode(DRAW_MODE_XOR, NULL, 0, 0). Calling xor_mode(FALSE) is equivalent to drawing_mode(DRAW_MODE_SOLID, NULL, 0, 0).
drawing_mode(3alleg), exspline(3alleg), exupdate(3alleg)