save_bitmap - Saves a bitmap into any supported file format. Allegro game
programming library.
#include <allegro.h>
int save_bitmap(const char *filename, BITMAP *bmp, const RGB
*pal);
Writes a bitmap into a file, using the specified palette, which should be an
array of 256 RGB structures. The output format is determined from the filename
extension: at present this function supports BMP, PCX and TGA formats.
Two things to watch out for: on some video cards it may be faster
to copy the screen to a memory bitmap and save the latter, and if you use
this to dump the screen into a file you may end up with an image much larger
than you were expecting, because Allegro often creates virtual screens
larger than the visible screen. You can get around this by using a
sub-bitmap to specify which part of the screen to save, eg:
BITMAP *bmp;
PALETTE pal;
...
get_palette(pal);
bmp = create_sub_bitmap(screen, 0, 0, SCREEN_W, SCREEN_H);
save_bitmap("dump.pcx", bmp, pal);
destroy_bitmap(bmp);
Returns non-zero on error.
save_bmp(3), save_pcx(3), save_tga(3),
load_bitmap(3), register_bitmap_file_type(3)