debian man page for enable_hardware_cursor

enable_hardware_cursor(3alleg4) 				  Allegro manual				   enable_hardware_cursor(3alleg4)

NAME
       enable_hardware_cursor - Enables the OS hardware cursor. Allegro game programming library.

SYNOPSIS
       #include <allegro.h>

       void enable_hardware_cursor(void);

DESCRIPTION
       After  calling  this function, Allegro will let the operating system draw the mouse cursor instead of doing it itself. This is not possible
       with all graphics drivers though: you'll need to check the gfx_capabilities flags after calling show_mouse() to see if this works. On  some
       platforms,  enabling  the  hardware cursor causes get_mouse_mickeys() to return only a limited range of values, so you should not call this
       function if you need mouse mickeys.

SEE ALSO
       install_mouse(3alleg4),	show_mouse(3alleg4),  set_mouse_sprite(3alleg4),   get_mouse_mickeys(3alleg4),	 gfx_capabilities(3alleg4),   dis-
       able_hardware_cursor(3alleg4), show_os_cursor(3alleg4), exsyscur(3alleg4)

Allegro 							   version 4.4.2				   enable_hardware_cursor(3alleg4)