Private Sub ToolStripMenuItem1_Click(sender As System.Object, e As System.EventArgs) Handles ToolStripMenuItem1.Click
        Dim ToolStripItem As ToolStripItem = DirectCast(sender, ToolStripItem)
        Dim ContextMenuStrip As ContextMenuStrip = ToolStripItem.Owner
        Dim RichTextBox As RichTextBox = DirectCast(ContextMenuStrip.SourceControl, RichTextBox)
        RichTextBox.Text = Clipboard.GetText()
    End Sub
[/Code]