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Man Pages


Manual Reference Pages  -  MAKEACOL32 (3)

NAME

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

CONTENTS

Synopsis
Description
See Also

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(3), set_alpha_blender(3), set_write_alpha_blender(3)
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Allegro MAKEACOL32 (3) version 4.4.2

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