NAME

       set_difference_blender - Enables a difference blender mode. Allegro game programming library.

SYNOPSIS

       #include <allegro.h>

       void set_difference_blender(int r, int g, int b, int a);

DESCRIPTION

       Enables  a difference blender mode for combining translucent or lit truecolor pixels. This makes an image
       which has colours calculated by the difference between the source and destination colours.

SEE ALSO

       set_trans_blender(3alleg4), drawing_mode(3alleg4)

Allegro                                           version 4.4.3                  set_difference_blender(3alleg4)