TaskDialogSelectedButtonIndex Property

After the dialog is closed, gets the index of the clicked custom button defined in the Buttons collection that closed the TaskDialog. If the TaskDialog has been closed either programmatically or by a standard button, or is not closed yet, this property returns -1.

public int SelectedButtonIndex { get; }

Public ReadOnly Property SelectedButtonIndex As Integer
	Get

public:
property int SelectedButtonIndex {
	int get ();
}

member SelectedButtonIndex : int with get