get_mouse_mickeys - Man Page

#include <allegro.h>

void get_mouse_mickeys(int *mickeyx, int *mickeyy);

Measures how far the mouse has moved since the last call to this  function. The values of mickeyx and mickeyy will become negative if the  mouse is moved left or up, respectively. The mouse will continue to  generate movement mickeys even when it reaches the edge of the screen, so  this form of input can be useful for games that require an infinite range  of mouse movement.

Note that the infinite movement may not work in windowed mode, since under  some platforms the mouse would leave the window, and may not work at all  if the hardware cursor is in use.

install_mouse(3), exmouse(3)

disable_hardware_cursor(3), enable_hardware_cursor(3), exmouse(3), install_mouse(3).