Invoked when a mouse button is pressed on a component and then
dragged.
MOUSE_DRAGGED
events will continue to be
delivered to the component where the drag originated until the
mouse button is released (regardless of whether the mouse position
is within the bounds of the component).
Due to platform-dependent Drag&Drop implementations,
MOUSE_DRAGGED
events may not be delivered during a native
Drag&Drop operation.
Since:
1.6