Can not use a Sub using graphics

This is my code.

Sub Proces(ByVal e As System.Windows.Forms.PaintEventArgs) Handles Me.Paint
Dim i, j As Integer
For i = 0 To 200
For j = 0 To 200
If rd < alpha Then
If grid(i, j) = 0 Then
grid(i, j) = 1
aantal = aantal + 1
e.Graphics.DrawRectangle(Pens.Beige, i + 10, j + TextBox1.Height, 1, 1)
End If
End If
Next
Next
rd = randomgen.NextDouble()
Label1.Text = CStr(rd)
End Sub

I can not draw by using this. I need to draw a pixel in a procedure that is called when pressing on a button.

Can somebody please help me ( the error says that :Argument not specified for parameter 'e' of 'Public Sub Proces(e As System.Windows.Forms.PaintEventArgs)'.