Removes the listener from the collection of listeners who will
be notified when an event of the given type occurs anywhere in
a widget. The event type is one of the event constants defined
in class <code>SWT</code>.
@param eventType the type of event to listen for
@param listener the listener which should no longer be notified when the event occurs
@exception IllegalArgumentException <ul>
<li>ERROR_NULL_ARGUMENT - if the listener is null</li>
</ul>
@exception SWTException <ul>
<li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
</ul>
Removes the listener from the collection of listeners who will be notified when an event of the given type occurs anywhere in a widget. The event type is one of the event constants defined in class <code>SWT</code>.
@param eventType the type of event to listen for @param listener the listener which should no longer be notified when the event occurs
@exception IllegalArgumentException <ul> <li>ERROR_NULL_ARGUMENT - if the listener is null</li> </ul> @exception SWTException <ul> <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> </ul>
@see Listener @see SWT @see #addFilter @see #addListener
@since 3.0