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)