In order to help the user determine where the mouse is, the runtime could send mouse enter/leave events per window so that it is clear which window the mouse is currently in.
The problem with the device system is that it does not know anything about windows so that information can not be retrieved through the device system.
In order to help the user determine where the mouse is, the runtime could send mouse enter/leave events per window so that it is clear which window the mouse is currently in.
The problem with the device system is that it does not know anything about windows so that information can not be retrieved through the device system.