keycode 22 = BackSpace osfBackSpace
keycode  63 = asterisk
keycode 112 = slash
keycode 108 = Return
keycode 79 = Home      
keycode 80 = Up        
keycode 81 = Page_Up   
keycode 82 = minus   
keycode 83 = Left      
keycode 85 = Right     
keycode 86 = plus
keycode 87 = End       
keycode 88 = Down      
keycode 89 = Page_Down 
keycode 90 = Insert    
keycode 91 = Delete    
