NAME
exalpha - Creating and using 32 bit RGBA sprites. Allegro game
programming library.
SYNOPSIS
#include <allegro.h>
Example exalpha
DESCRIPTION
This program demonstrates how to use the 32 bit RGBA translucency
functions to store an alpha channel along with a bitmap graphic. Two
images are loaded from disk. One will be used for the background and
the other as a sprite. The example generates an alpha channel for the
sprite image, composing the 32 bit RGBA bitmap during runtime, and
draws it at the position of the mouse cursor.
SEE ALSO
BITMAP(3alleg), END_OF_MAIN(3alleg), SCREEN_H(3alleg),
SCREEN_W(3alleg), allegro_error(3alleg), allegro_init(3alleg),
allegro_message(3alleg), blit(3alleg), clear_keybuf(3alleg),
create_bitmap(3alleg), destroy_bitmap(3alleg),
draw_trans_sprite(3alleg), drawing_mode(3alleg), font(3alleg),
getb(3alleg), getg(3alleg), getpixel(3alleg), getr(3alleg),
install_keyboard(3alleg), install_mouse(3alleg), install_timer(3alleg),
keypressed(3alleg), load_bitmap(3alleg), makecol(3alleg),
mouse_x(3alleg), mouse_y(3alleg), putpixel(3alleg), rectfill(3alleg),
replace_filename(3alleg), screen(3alleg), set_alpha_blender(3alleg),
set_color_conversion(3alleg), set_color_depth(3alleg),
set_gfx_mode(3alleg), set_multiply_blender(3alleg),
set_write_alpha_blender(3alleg), solid_mode(3alleg),
stretch_blit(3alleg), textprintf_ex(3alleg)