System [00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 00] 1.0.3300.0 1.0.5000.0 2.0.0.0 4.0.0.0 Gtk# is thread aware, but not thread safe; See the <link location="node:gtk-sharp/programming/threads">Gtk# Thread Programming</link> for details. System.EventArgs A cancelable event is raised by a component when it is about to perform an action that can be canceled, such as the event of a . The event is deprecated and has been replaced by . It is offered as an example here only to illustrate the usage of . provides the property to indicate whether the event should be canceled. Provides data for a cancelable event. Constructor 1.0.5000.0 2.0.0.0 4.0.0.0 To be added Initializes a new instance of the class with the property set to false. Constructor 1.0.5000.0 2.0.0.0 4.0.0.0 To be added Initializes a new instance of the class with the property set to the given value. true to cancel the event; otherwise, false. Property 1.0.5000.0 2.0.0.0 4.0.0.0 System.Boolean To be added: an object of type 'bool' To be added Gets or sets a value indicating whether the event should be canceled.