Above example isn't VB6 specific - You want to use the VB6 KeyDown, or KeyUp events on your control.
(Let's assume you're want to use Textbox1 as the Control to listen for the Keys)
Private Sub Textbox1_KeyDown(KeyCode As Integer, Shift As Integer)
If (KeyCode = 17) And Shift = 2 Then
TextBox1.Text = Clipboard.GetText
End If
End Sub
The above will put the current text contents of the clipboard into your textbox.
Thanks.
James.