NAME

       makeacol32 - Converts an RGBA color into a 32-bit display pixel format. Allegro game programming library.

SYNOPSIS

       #include <allegro.h>

       int makeacol32(int r, int g, int b, int a);

DESCRIPTION

       Converts  an RGBA color into a 32-bit display pixel format, which includes an alpha (transparency) value.
       There are no versions of this routine for other color depths, because only the 32-bit format  has  enough
       room  to  store  a  proper  alpha  channel.  You  should  only  use  RGBA  format  colors as the input to
       draw_trans_sprite() or draw_trans_rle_sprite() after calling  set_alpha_blender(),  rather  than  drawing
       them directly to the screen.

SEE ALSO

       makeacol(3alleg4), set_alpha_blender(3alleg4), set_write_alpha_blender(3alleg4)

Allegro                                           version 4.4.3                              makeacol32(3alleg4)