public static void ExecutedEventHandler_RotateCounterclockwise(Object sender, ExecutedRoutedEventArgs e)
{
ZoomBoxPanel z = sender as ZoomBoxPanel;
double? param = null;
string p = e.Parameter as string;
if ((p != null) && (p.Length > 0))
{
param = Double.Parse(p);
}
if (z != null)
{
z.process_RotateCommand(false, param);
}
}
