Control.addDragDetectListener

Adds the listener to the collection of listeners who will be notified when a drag gesture occurs, by sending it one of the messages defined in the <code>DragDetectListener</code> interface.

@param listener the listener which should be notified

@exception IllegalArgumentException <ul> <li>ERROR_NULL_ARGUMENT - if the listener is null</li> </ul> @exception SWTException <ul> <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> </ul>

@see DragDetectListener @see #removeDragDetectListener

@since 3.3

class Control
void
addDragDetectListener

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