is invoked when a mouse button is pressed on a window and then
dragged.
Mouse drag events will continue to be delivered to
the window where the first event originated until the mouse button is
released (regardless of whether the mouse position is within the
bounds of the window).
Returns
When false is returned the other handlers are called and a
following handling of the event by the broadcaster takes place.
Otherwise, when true is returned, no other handler will be
called and the broadcaster will take no further actions
regarding the event.
is invoked when the mouse button has been moved on a window
(with no buttons down).
Returns
When false is returned the other handlers are called and a
following handling of the event by the broadcaster takes place.
Otherwise, when true is returned, no other handler will be
called and the broadcaster will take no further actions
regarding the event.
