The event handler receives an argument of type System.Windows.Input.TextCompositionEventArgs containing data related to this event. The following TextCompositionEventArgs properties provide information specific to this event.
| Property | Description | 
|---|
| Handled | Gets or sets a value that marks the routed event as handled, and prevents most handlers along the event route from handling the same event again. | 
| OriginalSource | (Inherited from System.Windows.RoutedEventArgs) | 
| Text | Gets or sets the text string that of the text composition. | 
| TextComposition | Gets or sets the text in the composition as a System.Windows.Input.TextComposition object. |