al_create_vertex_decl - Allegro 5 API

       Creates a vertex declaration, which describes a custom vertex format.

       Parameters:

       • elements - An array of ALLEGRO_VERTEX_ELEMENT(3alleg5) structures.

       • stride - Size of the custom vertex structure

       Returns: Newly created vertex declaration.

       al_create_vertex_decl - Allegro 5 API

ALLEGRO_VERTEX_ELEMENT(3alleg5), ALLEGRO_VERTEX_DECL(3alleg5), al_destroy_vertex_decl(3alleg5)

Allegro reference manual                                                          al_create_vertex_decl(3alleg5)

              #include <allegro5/allegro_primitives.h>

              ALLEGRO_VERTEX_DECL* al_create_vertex_decl(const ALLEGRO_VERTEX_ELEMENT* elements, int stride)