'Declaration
Public Function RegisterPropertyChangedCallback( _
ByVal As Windows.UI.Xaml.DependencyProperty, _
ByVal As Windows.UI.Xaml.DependencyPropertyChangedCallback _
) As System.Long
public System.long RegisterPropertyChangedCallback(
Windows.UI.Xaml.DependencyProperty ,
Windows.UI.Xaml.DependencyPropertyChangedCallback
)