static DialogWindow()
{
WindowStyleProperty.OverrideMetadata(typeof (DialogWindow), new FrameworkPropertyMetadata(WindowStyle.None));
ShowActivatedProperty.OverrideMetadata(typeof (DialogWindow), new FrameworkPropertyMetadata(false));
ShowInTaskbarProperty.OverrideMetadata(typeof (DialogWindow), new FrameworkPropertyMetadata(false));
ResizeModeProperty.OverrideMetadata(typeof (DialogWindow),
new FrameworkPropertyMetadata(ResizeMode.NoResize));
}