public ChatBackgroundPresenter()
{
_parallaxEffect = new WallpaperParallaxEffect();
_container = new ContentControl {
HorizontalContentAlignment = HorizontalAlignment.Stretch, VerticalContentAlignment = VerticalAlignment.Stretch, IsTabStop = false
};
_container.SizeChanged += OnSizeChanged;
Children.Add(_container);
RegisterPropertyChangedCallback(OpacityProperty, OnOpacityChanged);
_motionVisual = ElementCompositionPreview.GetElementVisual(_container);
_compositor = _motionVisual.Compositor;
ElementCompositionPreview.GetElementVisual(this).Clip = _compositor.CreateInsetClip();
}
private async void InitializeMotion()
{
_parallaxEffect = new WallpaperParallaxEffect();
Motion.Visibility = (await _parallaxEffect.IsSupportedAsync()) ? Visibility.Visible : Visibility.Collapsed;
}
