---
name: "is_sub_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_sub_bitmap/3alleg4"
---

# is\_sub\_bitmap(3alleg4)

Tells if a bitmap is a sub bitmap. Allegro game programming library.

## NAME

is\_sub\_bitmap - Tells if a bitmap is a sub bitmap. Allegro game programming library.

## SYNOPSIS

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

**int is\_sub\_bitmap(BITMAP \*bmp);**

## DESCRIPTION

Returns TRUE if bmp is a sub-bitmap.

## SEE ALSO

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