How do I convert picturebox.click event into a button.click event - vb.net

Question

I'm trying to have two options to draw a border around a picture box.
I can click on the picturebox to highlight but now would like to be able to use a button to do the same thing.
Private Sub imgLabel_Click(sender As Object, e As EventArgs) Handles imgLabel.Click
Dim BorderBounds As Rectangle = DirectCast(sender, PictureBox).ClientRectangle BorderBounds.Inflate(-1, -1)
ControlPaint.DrawBorder(DirectCast(sender, PictureBox).CreateGraphics, BorderBounds, Color.Orange, ButtonBorderStyle.Solid)
If Not (HighLightededPictureBox Is Nothing) Then
HighLightededPictureBox.Invalidate()
End If
'Rememeber the last highlighted PictureBox  
HighLightededPictureBox = CType(sender, PictureBox)
When I try to add a button click I get the Exception Unhandled - System.windows.forms.button to type System.windows.forms.picturebox error.
I have tried to add the button click event after "Handles" which causes the above error.
Private Sub imgLabel_Click(sender As Object, e As EventArgs) Handles imgLabel.Click, button1.click
I'm pretty new to programming and my searching results are turning anything up of value. I don't fully understand Ctypes/Directcasts.
Any help is greatly appreciated.
Ok, so I ended up going with this...
Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
Dim boxsize As New Size(192, 169)
Dim recpoint As New Point(0, 0)
Dim myrectangle As New Rectangle(recpoint, boxsize)
myrectangle.Inflate(-3, -3)
Dim G As Drawing.Graphics = PictureBox1.CreateGraphics
Dim Pen As New Pen(Color.Orange, 5)
G.DrawRectangle(Pen, myrectangle)
End Sub
Seems to be working ok, but requires a lot of manual entry of points. I have 6 more of these.

Answer 1

You could try
Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
imgLabel_Click(imgLabel, nothing)
End Sub