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register_bitmap_file_type(3alleg4) [opendarwin man page]

register_bitmap_file_type(3alleg4)				  Allegro manual				register_bitmap_file_type(3alleg4)

NAME
register_bitmap_file_type - Registers custom bitmap loading/saving functions. Allegro game programming library. SYNOPSIS
#include <allegro.h> void register_bitmap_file_type(const char *ext, BITMAP *(*load)(const char *filename, RGB *pal), int (*save)(const char *filename, BITMAP *bmp, const RGB *pal)); DESCRIPTION
Informs the load_bitmap() and save_bitmap() functions of a new file type, providing routines to read and write images in this format (either function may be NULL). The functions you supply must follow the same prototype as load_bitmap() and save_bitmap(). Example: BITMAP *load_dump(const char *filename, RGB *pal) { ... } int save_dump(const char *filename, BITMAP *bmp, const RGB *pal) { ... } register_bitmap_file_type("dump", load_dump, save_dump); SEE ALSO
load_bitmap(3alleg4), save_bitmap(3alleg4) Allegro version 4.4.2 register_bitmap_file_type(3alleg4)

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save_bitmap(3alleg4)						  Allegro manual					      save_bitmap(3alleg4)

NAME
save_bitmap - Saves a bitmap into any supported file format. Allegro game programming library. SYNOPSIS
#include <allegro.h> int save_bitmap(const char *filename, BITMAP *bmp, const RGB *pal); DESCRIPTION
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); RETURN VALUE
Returns non-zero on error. SEE ALSO
save_bmp(3alleg4), save_pcx(3alleg4), save_tga(3alleg4), load_bitmap(3alleg4), register_bitmap_file_type(3alleg4) Allegro version 4.4.2 save_bitmap(3alleg4)
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