NAME

       set_alpha_blender - Enables a special alpha-channel blending mode. Allegro game programming library.

SYNOPSIS

       #include <allegro.h>

       void set_alpha_blender();

DESCRIPTION

       Enables  the  special  alpha-channel  blending mode, which is used for drawing 32-bit RGBA sprites. After
       calling this function, you can use draw_trans_sprite() or draw_trans_rle_sprite() to draw a 32-bit source
       image  onto any hicolor or truecolor destination. The alpha values will be taken directly from the source
       graphic, so you can vary the solidity of each part of  the  image.  You  can't  use  any  of  the  normal
       translucency  functions  while  this  mode  is  active,  though, so you should reset to one of the normal
       blender modes (eg. set_trans_blender()) before drawing anything other than 32-bit RGBA sprites.

SEE ALSO

       set_trans_blender(3alleg4),          draw_trans_sprite(3alleg4),          draw_trans_rle_sprite(3alleg4),
       set_write_alpha_blender(3alleg4), exalpha(3alleg4), exrotscl(3alleg4), extrans(3alleg4)