Silverlight clipboard and printing testing

Silverlight 4 supports clipboard and printing functions directly, instead of using Windows API.

Regarding to clipboard, Silverlight only provides TEXT copy/paste functions, without IMAGE functions. The usage is as follows:

Clipboard.SetText(TextBox1.Text)

And we could provide the printing function with the following code:

        Dim pd As New PrintDocument()
        AddHandler pd.PrintPage, AddressOf PrintPage
        pd.Print()

    Sub PrintPage(ByVal s As Object, ByVal e As PrintPageEventArgs)
        e.PageVisual = Chart1 ' LayoutRoot
    End Sub

PrintPage function is the event handler of printing.