plan9 man page for makeacol32

makeacol32(3alleg4)						  Allegro manual					       makeacol32(3alleg4)

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 rou-
       tine for other color depths, because only the 32-bit format has enough room to store a proper alpha channel. You should only use RGBA  for-
       mat  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 4.4.2					       makeacol32(3alleg4)