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(3alleg), set_alpha_blender(3alleg),
set_write_alpha_blender(3alleg)