---
name: "is_same_bitmap"
section: "3alleg4"
platform: "linux"
package: "allegro4-doc"
version: "2:4.4.3.1-5"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/is_same_bitmap/3alleg4"
---

# is\_same\_bitmap(3alleg4)

Tells if two bitmaps describe the same drawing surface. Allegro game programming library.

## NAME

is\_same\_bitmap - Tells if two bitmaps describe the same drawing surface. Allegro game programming library.

## SYNOPSIS

**#include \<allegro.h\>**

**int is\_same\_bitmap(BITMAP \*bmp1, BITMAP \*bmp2);**

## DESCRIPTION

Returns TRUE if the two bitmaps describe the same drawing surface, ie.  the pointers are equal, one is a sub-bitmap of the other, or they are  both sub-bitmaps of a common parent.

## SEE ALSO

**create\_sub\_bitmap**(3alleg4)