Allegro 5 api
#include <allegro5/allegro.h> void al_draw_bitmap_region(ALLEGRO_BITMAP *bitmap, float sx, float sy, float sw, float sh, float dx, float dy, int flags)
Draws a region of the given bitmap to the target bitmap.
sx - source x
sy - source y
sw - source width (width of region to blit)
sh - source height (height of region to blit)
dx - destination x
dy - destination y
flags - same as for al_draw_bitmap(3alleg5)
al_draw_bitmap(3alleg5), al_draw_scaled_bitmap(3alleg5), al_draw_rotated_bitmap(3alleg5), al_draw_scaled_rotated_bitmap(3alleg5)