在.NET中打印PrintDocument对象时出现奇怪的错误

Question

我有一个Winforms应用程序,它生成自己的PrintDocument对象进行打印.它在我自己的测试中在XP和Windows 7中运行良好,但是当用户选择带有打开文档的打印命令时,一个用户在Vista中遇到以下异常:

************** Exception Text **************
System.ArgumentException: Handle 0 is not valid.
   at System.Drawing.Printing.PrinterSettings.SetHdevmode(IntPtr hdevmode)
   at System.Windows.Forms.PrintDialog.UpdatePrinterSettings(IntPtr hDevMode, IntPtr hDevNames, Int16 copies, Int32 flags, PrinterSettings settings, PageSettings pageSettings)
   at System.Windows.Forms.PrintDialog.ShowPrintDialog(IntPtr hwndOwner, WndProc hookProcPtr, PRINTDLG data)
   at System.Windows.Forms.PrintDialog.RunDialog(IntPtr hwndOwner)
   at System.Windows.Forms.CommonDialog.ShowDialog(IWin32Window owner)
   at System.Windows.Forms.CommonDialog.ShowDialog()
   at Deck_Studio.DSMain.PrintDeck(Object sender, EventArgs e)
   at System.Windows.Forms.MenuItem.OnClick(EventArgs e)
   at System.Windows.Forms.MenuItem.MenuItemData.Execute()
   at System.Windows.Forms.Command.Invoke()
   at System.Windows.Forms.Command.DispatchID(Int32 id)
   at System.Windows.Forms.Control.WmCommand(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
   at System.Windows.Forms.ContainerControl.WndProc(Message& m)
   at System.Windows.Forms.Form.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

我很难解决这个错误的本质以及任何重复这种错误的可能方法.可执行文件上的清单处于"受限"权限模式,甚至让用户以管理员身份运行应用程序也会生成错误.

Answer 1

确保用户已选择默认打印机.我遇到了许多不稳定的打印机相关错误,这些错误最终是由没有默认打印机引起的.