video Thumbnails Maker

[frozie]

Hi i want to make a Thumbnails Maker, that makes 20 picture of a video and then a file save dialog will appear when its dune. this is my design i have right now



this is my code on choose button

        Dim image As New OpenFileDialog
        image.Filter = "Video´s (*.avi,*.wmv)|*.avi;*.wmv"

        If image.ShowDialog = Windows.Forms.DialogResult.OK Then
            TextBox1.Text = image.FileName

        Else : Exit Sub
        End If

Thx