---
name: "al_unlock_bitmap"
section: "3"
platform: "linux"
package: "allegro"
version: "5.2.11.3-2"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/al_unlock_bitmap"
---

# al\_unlock\_bitmap(3)

Allegro 5 API

## NAME

al\_unlock\_bitmap - Allegro 5 API

## SYNOPSIS

-

  ```
  #include <allegro5/allegro.h>
  void al_unlock_bitmap(ALLEGRO_BITMAP *bitmap)
  ```

## DESCRIPTION

Unlock a previously locked bitmap or bitmap region. If the bitmap is a video bitmap, the texture will be updated to match the system memory copy (unless it was locked read only).

## SEE ALSO

[al\_lock\_bitmap(3)](/al_lock_bitmap/3.md), [al\_lock\_bitmap\_region(3)](/al_lock_bitmap_region/3.md), [al\_lock\_bitmap\_blocked(3)](/al_lock_bitmap_blocked/3.md), [al\_lock\_bitmap\_region\_blocked(3)](/al_lock_bitmap_region_blocked/3.md)