如何：创建多个可视化效果
更新：2007 年 11 月
使用 BitmapEffectGroup 可将多种可视效果应用于一个可视对象。下面的示例演示如何应用 BlurBitmapEffect 和 DropShadowBitmapEffect 以创建背后具有阴影的模糊按钮。
示例
using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using System.Windows.Media.Effects;
namespace SDKSample
{
public partial class MultipleEffectExample : Page
{
public MultipleEffectExample()
{
Button myButton = new Button();
myButton.Content = "DropShadow under this Button";
myButton.Margin = new Thickness(50);
myButton.Width = 300;
// Create the BitmapEffects to apply to the button.
BlurBitmapEffect myBlurBitmapEffect = new BlurBitmapEffect();
myBlurBitmapEffect.Radius = 2;
DropShadowBitmapEffect myDropShadowBitmapEffect = new DropShadowBitmapEffect();
myDropShadowBitmapEffect.Color = Colors.Black;
myDropShadowBitmapEffect.Direction = 320;
myDropShadowBitmapEffect.ShadowDepth = 30;
myDropShadowBitmapEffect.Softness = 1;
myDropShadowBitmapEffect.Opacity = 0.5;
BitmapEffectGroup myBitmapEffectGroup = new BitmapEffectGroup();
myBitmapEffectGroup.Children.Add(myBlurBitmapEffect);
myBitmapEffectGroup.Children.Add(myDropShadowBitmapEffect);
myButton.BitmapEffect = myBitmapEffectGroup;
StackPanel myStackPanel = new StackPanel();
myStackPanel.Children.Add(myButton);
this.Content = myStackPanel;
}
}
}
<Page xmlns="https://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="https://schemas.microsoft.com/winfx/2006/xaml">
<StackPanel>
<Button Margin="50" Width="300">
DropShadow Under this Button
<Button.BitmapEffect>
<BitmapEffectGroup>
<BlurBitmapEffect Radius="2" />
<DropShadowBitmapEffect Color="Black" Direction="320" ShadowDepth="30" Softness="1"
Opacity="0.5"/>
</BitmapEffectGroup>
</Button.BitmapEffect>
</Button>
</StackPanel>
</Page>