Provided by: allegro5-doc_5.0.10-2_all 

NAME
al_transform_coordinates - Allegro 5 API
SYNOPSIS
#include <allegro5/allegro.h>
void al_transform_coordinates(const ALLEGRO_TRANSFORM *trans, float *x, float *y)
DESCRIPTION
Transform a pair of coordinates.
Parameters:
• trans - Transformation to use
• x, y - Pointers to the coordinates
SEE ALSO
al_use_transform(3alleg5)
Allegro reference manual al_transform_coordinates(3alleg5)()