Removes the listener from the collection of listeners who will
be notified when an event of the given type occurs.
<p>
<b>IMPORTANT:</b> This method is <em>not</em> part of the SWT
public API. It is marked public only so that it can be shared
within the packages provided by SWT. It should never be
referenced from application code.
</p>
@param eventType the type of event to listen for
@param listener the listener which should no longer 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>
Removes the listener from the collection of listeners who will be notified when an event of the given type occurs. <p> <b>IMPORTANT:</b> This method is <em>not</em> part of the SWT public API. It is marked public only so that it can be shared within the packages provided by SWT. It should never be referenced from application code. </p>
@param eventType the type of event to listen for @param listener the listener which should no longer 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 Listener @see #addListener