Returns an array of listeners who will be notified when an event
of the given type occurs. The event type is one of the event constants
defined in class <code>SWT</code>.
@param eventType the type of event to listen for
@return an array of listeners that will be notified when the event occurs
@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>
Returns an array of listeners who will be notified when an event of the given type occurs. The event type is one of the event constants defined in class <code>SWT</code>.
@param eventType the type of event to listen for @return an array of listeners that will be notified when the event occurs
@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 Listener @see SWT @see #addListener(int, Listener) @see #removeListener(int, Listener) @see #notifyListeners
@since 3.4