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add_clip_rect(3)                Allegro manual                add_clip_rect(3)

NAME
       add_clip_rect - Intersects a bitmap's clipping rectangle with the given
       area. Allegro game programming library.

SYNOPSIS
       #include <allegro.h>

       void add_clip_rect(BITMAP *bitmap, int x1, int y1, int x2, int y2);

DESCRIPTION
       Sets the clipping rectangle of the specified bitmap as the intersection
       of its current clipping rectangle and the rectangle described by the
       four coordinates.

SEE ALSO
       set_clip_rect(3), get_clip_rect(3), set_clip_state(3),
       get_clip_state(3)

Allegro                          version 4.4.2                add_clip_rect(3)