Constructs a new instance of this class based on the information in the given untyped event.
The item that was selected.
Extra detail information about the selection, depending on the widget.
The x location of the selected area.
The y location of selected area.
The width of selected area.
The height of selected area.
The state of the keyboard modifier keys at the time the event was generated.
The text of the hyperlink that was selected. This will be either the text of the hyperlink or the value of its HREF, if one was specified.
A flag indicating whether the operation should be allowed. Setting this field to <code>false</code> will cancel the operation, depending on the widget.
Returns a string containing a concise, human-readable description of the receiver.
Instances of this class are sent as a result of trees being expanded and collapsed.
@see TreeListener @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>