ToolItem.addSelectionListener

Adds the listener to the collection of listeners who will be notified when the control is selected by the user, by sending it one of the messages defined in the <code>SelectionListener</code> interface. <p> When <code>widgetSelected</code> is called when the mouse is over the arrow portion of a drop-down tool, the event object detail field contains the value <code>SWT.ARROW</code>. <code>widgetDefaultSelected</code> is not called. </p>

@param listener the listener which should be notified when the control is selected by the user,

@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 SelectionListener @see #removeSelectionListener @see SelectionEvent

class ToolItem
void
addSelectionListener

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