With VB 2008 something using the stream class

I am having trouble understanding how the stream can be read and data extracted to a fielded recordset.

Dim myStream As Stream = Nothing
        Dim openFileDialog1 As New OpenFileDialog()
 
        openFileDialog1.InitialDirectory = Application.StartupPath & \Data\
        openFileDialog1.Filter = "Icon files (*.ico|"
        openFileDialog1.FilterIndex = 2
        openFileDialog1.RestoreDirectory = True
 
        If openFileDialog1.ShowDialog() = System.Windows.Forms.DialogResult.OK Then
            Try
                myStream = openFileDialog1.OpenFile()
                If (myStream IsNot Nothing) Then
                    ' Insert code to read the stream here. Here is the 
                'something like this?
              mydate = read(buffer, 1, 16) 
                End If
            Catch Ex As Exception
                MessageBox.Show("Cannot read file from disk. Original error: " & Ex.Message)
            Finally
                ' Check this again, since we need to make sure we didn't throw an exception on open.
                If (myStream IsNot Nothing) Then
                    myStream.Close()
                End If
 
 
 
            End Try
 
        End If

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