set_screen_blender man page on DragonFly

set_screen_blender man page on DragonFly

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set_screen_blender(3)		Allegro manual		 set_screen_blender(3)

NAME
       set_screen_blender  -  Enables a screen blender mode. Allegro game pro‐
       gramming library.

SYNOPSIS
       #include <allegro.h>

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

DESCRIPTION
       Enables a screen blender mode for combining translucent	or  lit	 true‐
       color  pixels. This blender mode lightens the colour of the destination
       image by multiplying the inverse of the source and destination colours.
       Sort of like the opposite of the multiply blender mode.

SEE ALSO
       set_trans_blender(3), drawing_mode(3)

Allegro				 version 4.4.2		 set_screen_blender(3)

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