al_get_mouse_state - Man Page

#include <allegro5/allegro.h>

void al_get_mouse_state(ALLEGRO_MOUSE_STATE *ret_state)

Save the state of the mouse specified at the time the function is called into the given structure.

Example:

ALLEGRO_MOUSE_STATE state;

al_get_mouse_state(&state);
if (state.buttons & 1) {
    /* Primary (e.g. left) mouse button is held. */
    printf("Mouse position: (%d, %d)\n", state.x, state.y);
}
if (state.buttons & 2) {
    /* Secondary (e.g. right) mouse button is held. */
}
if (state.buttons & 4) {
    /* Tertiary (e.g. middle) mouse button is held. */
}

ALLEGRO_MOUSE_STATE(3), al_get_mouse_state_axis(3), al_mouse_button_down(3)

al_get_mouse_state_axis(3), ALLEGRO_MOUSE_STATE(3), al_mouse_button_down(3).