LayerVisual.Shadow 屬性

定義

命名空間:

Windows.UI.Composition

取得或設定要套用至 LayerVisual子系之扁平化表示的陰影。

public:
 property CompositionShadow ^ Shadow { CompositionShadow ^ get(); void set(CompositionShadow ^ value); };

CompositionShadow Shadow();

void Shadow(CompositionShadow value);

public CompositionShadow Shadow { get; set; }

var compositionShadow = layerVisual.shadow;
layerVisual.shadow = compositionShadow;

Public Property Shadow As CompositionShadow

屬性值

CompositionShadow

要套用至 LayerVisual子系之扁平化標記法的陰影。

Windows 需求

裝置系列	Windows 10 Fall Creators Update (已於 10.0.16299.0 引進)
API contract	Windows.Foundation.UniversalApiContract (已於 v5.0 引進)

範例

此範例示範如何將 DropShadow 套用至 LayerVisual。

private async void InitComposition()
{
  Compositor compositor = ElementCompositionPreview.GetElementVisual(MyGrid).Compositor;

  //Create LayerVisual
  LayerVisual layerVisual = compositor.CreateLayerVisual();
  layerVisual.Size = new Vector2(900, 900);

  //Create SpriteVisuals to use as LayerVisual child
  SpriteVisual sv1 = compositor.CreateSpriteVisual();
  sv1.Brush = compositor.CreateColorBrush(Windows.UI.Colors.Blue);
  sv1.Size = new Vector2(300, 300);
  sv1.Offset = new Vector3(200, 200, 0);

  SpriteVisual sv2 = compositor.CreateSpriteVisual();
  sv2.Brush = compositor.CreateColorBrush(Colors.Red);
  sv2.Size = new Vector2(300, 300);
  sv2.Offset = new Vector3(400, 400, 0);

  //Add children to the LayerVisual
  layerVisual.Children.InsertAtTop(sv1);
  layerVisual.Children.InsertAtTop(sv2);

  //Create DropShadow
  DropShadow shadow = compositor.CreateDropShadow();
  shadow.Color = Colors.DarkSlateGray;
  shadow.Offset = new Vector3(40, 40, 0);
  shadow.BlurRadius = 9;
  shadow.SourcePolicy = CompositionDropShadowSourcePolicy.InheritFromVisualContent;

  //Associate Shadow with LayerVisual
  layerVisual.Shadow = shadow;

  ElementCompositionPreview.SetElementChildVisual(MyGrid, layerVisual);
}         

結果看起來就像這樣。