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al_lock_bitmap_region(3)			      al_lock_bitmap_region(3)

NAME
       al_lock_bitmap_region - Allegro 5 API

SYNOPSIS
	      #include <allegro5/allegro.h>

	      ALLEGRO_LOCKED_REGION *al_lock_bitmap_region(ALLEGRO_BITMAP *bitmap,
		 int x,	int y, int width, int height, int format, int flags)

DESCRIPTION
       Like  al_lock_bitmap(3),	 but only locks	a specific area	of the bitmap.
       If the bitmap is	a display bitmap, only that area of the	 texture  will
       be  updated when	it is unlocked.	 Locking only the region you indend to
       modify will be faster than locking the whole bitmap.

SEE ALSO
       ALLEGRO_LOCKED_REGION(3), ALLEGRO_PIXEL_FORMAT(3), al_unlock_bitmap(3)

Allegro	reference manual			      al_lock_bitmap_region(3)

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO

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