This UDF allows to set an events handler for Mouse device.   The beginning... I searched for a way to disable the Mouse Primary click, and be able to call some function when the click event is received... Big thanks to amel27 for this one, i only organized the whole stuff to UDF style.   Example: #include <GUIConstantsEx.au3> #include "MouseOnEvent.au3" HotKeySet("{ESC}", "_Quit") _Example_Intro() _Example_Limit_Window() Func _Example_Intro