Provided by: allegro5-doc_5.2.3.0-1_all 

NAME
al_have_d3d_non_square_texture_support - Allegro 5 API
SYNOPSIS
#include <allegro5/allegro_direct3d.h>
bool al_have_d3d_non_square_texture_support(void)
DESCRIPTION
Returns whether the Direct3D device supports textures that are not square.
Returns: True if the Direct3D device suports non-square textures, false otherwise.
Allegro reference manual al_have_d3d_non_square_texture_support(3alleg5)