Provided by: allegro5-doc_5.2.9.1+dfsg-1.1build4_all bug

NAME

       al_backup_dirty_bitmap - Allegro 5 API

SYNOPSIS

              #include <allegro5/allegro.h>

              void al_backup_dirty_bitmap(ALLEGRO_BITMAP *bitmap)

DESCRIPTION

       On some platforms, notably Windows Direct3D and Android, textures may be lost at any time for events such
       as  display  resize  or  switching out of the app.  On those platforms, bitmaps created without the ALLE‐
       GRO_NO_PRESERVE_TEXTURE flag automatically get backed up to system memory every time  al_flip_display  is
       called.

       This  function gives you more control over when your bitmaps get backed up.  By calling this function af‐
       ter modifying a bitmap, you can make sure the bitmap is backed up right away instead of during  the  next
       flip.

SINCE

       5.2.1

              [Unstable API]: This API is new and subject to refinement.

SEE ALSO

       al_backup_dirty_bitmaps(3alleg5), al_create_bitmap(3alleg5)

Allegro reference manual                                                         al_backup_dirty_bitmap(3alleg5)