WM 5.0 InternetErrorDlg返回ERROR_INVALID_HANDLE

本文介绍了WM 5.0 InternetErrorDlg返回ERROR_INVALID_HANDLE的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我编写了一个WM 5.0 CF 3.5 vb.net应用程序，试图将Internet错误列表显示为用于对Web服务进行身份验证的证书列表。 I&NBSP;收到错误ERROR_INVALID_HANDLE。我将hWnd参数设置为Null，WinForm的Handle属性，或者使用coredll.dll中的GetDesktopWindow获取句柄，我得到此错误。

我的代码如下。任何帮助将不胜感激

I have written a WM 5.0 CF 3.5 vb.net app that tries to pinvoke InternetErrorDlg to display a list of certificates to use for authentication
to a web service. I getting the error ERROR_INVALID_HANDLE. I get this error whether set the hWnd parameter to Null, the Handle property of the WinForm, or I use GetDesktopWindow from coredll.dll to obtain the handle.

My is code is below. Any help would be greatly appreciated

< DllImport（"WinInet.dll"，_
   EntryPoint：="InternetErrorDlg"，_
   CharSet：= CharSet.Unicode，SetLastError：= True）> _
  私人共享功能InternetErrorDlg显示（_
&NBSP;&NBSP; BYVAL的hWnd作为IntPtr的，_
&NBSP;&NBSP;为ByRef hRequest作为IntPtr的，_
&NBSP;&NBSP; BYVAL dwError作为的Int32，_
   ByVal dwFlags作为Int32，_
   ByRef lpdwIndex As IntPtr）作为Int32
   结束函数

<DllImport("WinInet.dll", _
   EntryPoint:="InternetErrorDlg", _
   CharSet:=CharSet.Unicode, SetLastError:=True)> _
   Private Shared Function InternetErrorDlg( _
   ByVal hWnd As IntPtr, _
   ByRef hRequest As IntPtr, _
   ByVal dwError As Int32, _
   ByVal dwFlags As Int32, _
   ByRef lpdwIndex As IntPtr) As Int32
    End Function

iFlags = FLAGS_ERROR_UI_FLAGS_GENERATE_DATA + FLAGS_ERROR_UI_FLAGS_CHANGE_OPTIONS
lppvData = IntPtr.Zero
hWnd = GetDesktopWindow（）
iResult = InternetErrorDlg（hWnd，m_Request， iError，iFlags，lppvData）

选择案例iResult

iFlags = FLAGS_ERROR_UI_FLAGS_GENERATE_DATA + FLAGS_ERROR_UI_FLAGS_CHANGE_OPTIONS
lppvData = IntPtr.Zero
hWnd = GetDesktopWindow()
iResult = InternetErrorDlg(hWnd, m_Request, iError, iFlags, lppvData)

Select Case iResult

案例ERROR_SUCCESS

Case ERROR_SUCCESS

情况下ERROR_CANCELLED
&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP; m_ErrorMessage ="的功能是&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;病例ERROR_INTERNET_FORCE_RETRY
&NBSP;&NBSP;&NBSP;&NBSP由用户"

Case ERROR_CANCELLED
m_ErrorMessage = "The function was canceled by the user"

&NBSP取消; m_ErrorMessage ="功能需要重做其请求"

Case ERROR_INTERNET_FORCE_RETRY
m_ErrorMessage = "Function needs to redo its request"

;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;病例ERROR_INVALID_HANDLE
&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP ;&NBSP;&NBSP; m_ErrorMessage = "InternetErrorDlg显示：句柄到父窗口无效"
&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;病例否则
&NBSP ;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP; m_ErrorMessage = "InternetErrorDlg显示：错误＃" + iResult.ToString（）
结束Se lect

         Case ERROR_INVALID_HANDLE
                m_ErrorMessage = "InternetErrorDlg: The handle to the parent window is invalid"
          Case Else
                 m_ErrorMessage = "InternetErrorDlg: Error #" + iResult.ToString()
End Select

NBSP

WM 5.0 InternetErrorDlg返回ERROR_INVALID_HANDLE

问题描述

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