How do I find out which control has focus in .NET Windows Forms?

Question

How do I find out which control has focus in Windows Forms?

Answer 1

I used following:

Private bFocus = False
Private Sub txtUrl_MouseEnter(sender As Object, e As EventArgs) Handles txtUrl.MouseEnter
    If Me.ActiveControl.Name <> txtUrl.Name Then
        bFocus = True
    End If
End Sub

Private Sub txtUrl_MouseUp(sender As Object, e As MouseEventArgs) Handles txtUrl.MouseUp
    If bFocus Then
        bFocus = False
        txtUrl.SelectAll()
    End If
End Sub

I set the Variable only on MouseEnter to improve the magic