vb基础（打印问题）

Private Sub Command1_Click()
Dim beginpage, endpage, numcopies, orientation, i
 CommonDialog1.CancelError = True
 On Error GoTo errhandler
 CommonDialog1.ShowPrinter
 beginpage = CommonDialog1.FromPage
 endpage = CommonDialog1.ToPage
 numcopies = CommonDialog1.Copies
 orientation = CommonDialog1.orientation
  For i = 1 To numcopies
  Next
  Exit Sub
errhandler:
  Exit Sub
  end sub