gtkhtml-sharp 0.0.0.0 Gtk# is thread aware, but not thread safe; See the Gtk# Thread Programming for details. Event handler. The event utilizes this delegate: Event data is passed via the parameter. To attach a to an event, add the InsertionFontStyleChangedHandler instance to the event. The methods referenced by the InsertionFontStyleChangedHandler instance are invoked whenever the event is raised, until the InsertionFontStyleChangedHandler is removed from the event. System.Delegate System.ICloneable System.Runtime.Serialization.ISerializable System.Void