谁帮小弟我解决一下 取picturebox 中图片的坐标的有关问题，谢了

哪位高手帮我解决一下 取picturebox 中图片的坐标的问题，谢了
我想取出Picturebox中图片 某点的坐标，
取出的都是picturebox的坐标，图片比picbox大的时候就不对了

我是刚刚接触vb.net，哪位高手能帮忙解决一下，非常感谢！

------解决方案--------------------
在窗体上添加一个panel,一个hscrollbar,一个vscrollbar,两个label,在panel在添加一个picturebox,代表如下:
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Me.HScrollBar1.Top = Panel1.Top + Me.Panel1.Height
Me.HScrollBar1.Left = Me.Panel1.Left
Me.HScrollBar1.Width = Me.Panel1.Width

Me.VScrollBar1.Left = Me.Panel1.Left + Me.Panel1.Width
Me.VScrollBar1.Top = Me.Panel1.Top
Me.VScrollBar1.Height = Me.Panel1.Height

Me.PictureBox1.SizeMode = PictureBoxSizeMode.AutoSize
Me.PictureBox1.ImageLocation = "d:\a.jpg"

Me.HScrollBar1.Visible = Me.PictureBox1.Width > Me.Panel1.Width
Me.VScrollBar1.Visible = Me.PictureBox1.Height > Me.Panel1.Height
If Me.HScrollBar1.Visible Then
Me.HScrollBar1.Minimum = 0
Me.HScrollBar1.Maximum = Me.PictureBox1.Width - Me.Panel1.Width

End If
If Me.VScrollBar1.Visible Then
Me.VScrollBar1.Minimum = 0
Me.VScrollBar1.Maximum = Me.PictureBox1.Height - Me.Panel1.Height
End If
End Sub

Private Sub HScrollBar1_Scroll(ByVal sender As System.Object, ByVal e As System.Windows.Forms.ScrollEventArgs) Handles HScrollBar1.Scroll
Me.PictureBox1.Left = -HScrollBar1.Value
End Sub

Private Sub VScrollBar1_Scroll(ByVal sender As System.Object, ByVal e As System.Windows.Forms.ScrollEventArgs) Handles VScrollBar1.Scroll
Me.PictureBox1.Top = -VScrollBar1.Value
End Sub


Private Sub PictureBox1_MouseMove(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles PictureBox1.MouseMove
Me.Label1.Text = "X:" & e.X
Me.Label2.Text = "Y:" & e.Y
End Sub