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)

Allegro                                           version 4.4.3                       set_alpha_blender(3alleg4)