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set_difference_blender(3) Allegro manual set_difference_blender(3)

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(3), drawing_mode(3)

version 4.4.3 Allegro