SilverLight-摄像头捕获图像案例

最近做了一个SilverLight摄像头捕获图像案例,贴一下给大家:

  '打开电脑摄像头
    Private Sub BtnCamClick(ByVal sender As Object,ByVal e As RoutedEventArgs)
        '取得默认视频捕获设备
        Dim cam As VideoCaptureDevice = CaptureDeviceConfiguration.GetDefaultVideoCaptureDevice
        '视频或者音频捕获资源
        Dim captureSource As New CaptureSource
        If CaptureDeviceConfiguration.RequestDeviceAccess() Then
            '要捕获的视频设备
            captureSource.VideoCaptureDevice = cam
            'VideoBrush的Source来源
            myVideoBrush.SetSource(captureSource)
            myVideoBrush.Stretch = Stretch.Fill
            '开始捕获方法
            captureSource.Start()
        End If
        Me.btnCam.IsEnabled = False
    End Sub

   '捕获图像源码

    Private Sub BtnImageClick(ByVal sender As Object,ByVal e As RoutedEventArgs)         '使用WriteableBitMap来捕获视频区域控件图像         Dim stream As WriteableBitmap = New WriteableBitmap(Me.MyBorder,New MatrixTransform())         Me.imageTest.source = stream     End Sub