KeyDown Event not working

I am using the keydown event so that when i press the right arrow the image changes but when i run it nothing happens when i press the arrow key.
I have enabled the keypreview Properties please help me!

Code:

---

    Private Sub Level1_KeyDown(sender As Object, e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyDown
        If tmrWalk.Enabled = True Then
        Else
            If e.KeyCode = Windows.Forms.Keys.Right Then
                If rl = 0 Then
                    picGuy.Image = My.Resources.guy_right
                    rl = 1
                Else
                    picGuy.Image = My.Resources.guy_right2
                    rl = 0
                End If
            End If
            tmrWalk.Enabled = True
        End If
    End Sub

---

You could override ProcessCmdKey

VB.Net Code:

Protected Overrides Function ProcessCmdKey(ByRef sMessage As Message, ByVal oKeyData As Keys) As Boolean
        If oKeyData = Keys.Left Then
            'your code
            Return True
        ElseIf oKeyData = Keys.Right Then
            'your code
            Return True
        Else
            Return MyBase.ProcessCmdKey(sMessage, oKeyData)
        End If
End Function