42、探索Silverlight多媒体：声音、视频、深度缩放及样式行为

探索Silverlight多媒体：声音、视频、深度缩放及样式行为

1. 声音、视频与动画代码示例

以下是一段用于动画操作的代码，其功能是将动画附加到矩形元素上，并使其随机移动：

' Attach the animation.
squareMoveStoryboard.Stop()
Storyboard.SetTarget(squareMoveStoryboard, rectangle)

' Choose a random direction and movement amount.
Dim rand As New Random()
Dim sign As Integer = 1
If rand.Next(0, 2) = 0 Then
    sign = -1
End If
leftAnimation.To = Canvas.GetLeft(rectangle) + rand.Next(60,150) * sign
topAnimation.To = Canvas.GetTop(rectangle) + rand.Next(60, 150) * sign

' Store a reference to the square that's being animated.
previousRectangle = rectangle

' Start the animation.
squareMoveStoryboard.Begin()
End Sub

这段代码实现了视频、交互性和独特效果的结合，超越了其他基于浏览器的应用程序平台。

2. 深度缩放（Deep Zoom）技术

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