private static void HandleMouseHorizontalWheel([NotNull] Window handledWindow, IntPtr wParam)
{
if (handledWindow == null)
{
throw new ArgumentNullException(nameof(handledWindow));
}
int tilt = (short)Win32.HiWord(wParam);
if (tilt == 0)
{
return;
}
IInputElement element = Mouse.DirectlyOver;
if (element == null)
{
return;
}
if (!(element is UIElement))
{
element = VisualTreeHelpers.FindAncestor <UIElement>(element as DependencyObject);
}
if (element == null)
{
return;
}
// make sure the ancestor is this window
if (!ReferenceEquals(VisualTreeHelpers.FindAncestor <Window>((DependencyObject)element), handledWindow))
{
return;
}
var ev = new MouseHorizontalWheelEventArgs(Mouse.PrimaryDevice, Environment.TickCount, tilt)
{
RoutedEvent = PreviewMouseHorizontalWheelEvent
//Source = handledWindow
};
// first raise preview
element.RaiseEvent(ev);
if (ev.Handled)
{
return;
}
// then bubble it
ev.RoutedEvent = MouseHorizontalWheelEvent;
element.RaiseEvent(ev);
}
private static void HandleMouseHorizontalWheel(IntPtr wParam)
{
int tilt = Win32.HiWord(wParam);
if (tilt == 0)
{
return;
}
IInputElement element = Mouse.DirectlyOver;
if (element == null)
{
return;
}
if (!(element is UIElement))
{
element = VisualTreeHelpers.FindAncestor <UIElement>(element as DependencyObject);
}
if (element == null)
{
return;
}
var ev = new MouseHorizontalWheelEventArgs(Mouse.PrimaryDevice, Environment.TickCount, tilt)
{
RoutedEvent = PreviewMouseHorizontalWheelEvent
//Source = handledWindow
};
// first raise preview
element.RaiseEvent(ev);
if (ev.Handled)
{
return;
}
// then bubble it
ev.RoutedEvent = MouseHorizontalWheelEvent;
element.RaiseEvent(ev);
}