DOKK / manpages / debian 11 / allegro5-doc / ALLEGRO_TOUCH_STATE.3alleg5.en
ALLEGRO_TOUCH_STATE(3alleg5) ALLEGRO_TOUCH_STATE(3alleg5)

ALLEGRO_TOUCH_STATE - Allegro 5 API

#include <allegro5/allegro.h>
typedef struct ALLEGRO_TOUCH_STATE ALLEGRO_TOUCH_STATE;

This is a structure that is used to hold a “snapshot” of a touch at a particular instant.

Public fields (read only):

•
id - identifier of the touch. If the touch is valid, this is positive.
•
x - touch x position
•
y - touch y position
•
dx - touch relative x position
•
dy - touch relative y position
•
primary - TRUE if this touch is the primary one (usually the first one).
•
display - The ALLEGRO_DISPLAY(3alleg5) that was touched.

5.1.0

Allegro reference manual