Question

VC ++ 2008，CLR控制台应用程序，在win7 x64下开发。

我正在使用.net和MS Office v.12 PIA来做一些Excel自动化，这很顺利。但是现在，我正在启动代码的下一部分，其中涉及做一些简单的电子邮件事务，所以我试图让MAPI在我的代码中工作。基本上，它读取相应的注册表项以获取OLMAPI32.DLL文件的完整路径，然后从该dll中尝试LoadLibrary / GetProcAddress。

这是一个片段：

using namespace System;
using namespace Microsoft::Office::Interop;
using namespace Microsoft::Win32;

int main(array<System::String ^> ^args)
{
    RegistryKey^ subK = Registry::LocalMachine->OpenSubKey("SOFTWARE\\Clients\\Mail\\Microsoft Outlook");
    String^ mailDll = safe_cast<String^>(subK->GetValue("DLLPathEx"));
    CStringW cStrMailDll = mailDll; //Just to put mailDll in a format that LoadLibrary() can read.

    LPMAPIINITIALIZE mapiInit = NULL;

    HMODULE mapiLib = LoadLibrary(cStrMailDll); // This Returns NULL
    if(mapiLib == NULL)
    {
        printf("\nError: %d\n", GetLastError()); // System Error 193 - ERROR_BAD_EXE_FORMAT
        return 1;
    }

    ...(more code)
    ...

LoadLibrary设置系统错误193：“％1不是有效的Win32应用程序”对我来说并不震惊。做了一些研究后，我认为我需要做的就是强制x86编译。所以我转到Configuration Manager，在Active solution平台下，我唯一的选择是Win32，New和Edit。所以我点击New，在“键入或选择新平台”下键入“x86”，然后单击“Copy settings from”选择“Any CPU”或其他合适的东西，但我唯一的选择是Win32，和！我想也许是因为我已经瞄准了.net，所以为了测试这个理论，我开始了一个新项目，这次是作为Win32控制台应用程序。即使在这种类型的项目下，我唯一的选择是Win32。我听说过的x86，x64，Any CPU和Itanium在我的VS2008中不存在！

所以我在这里不知所措。我如何强制VS将我的exe编译为x86，以便我可以使用mapi接口？或者我可以使用64位版本的OLMAPI32.DLL吗？如果没有64位的库可以让我的代码中的MAPI工作，当我尝试为x86设置我的环境时，VS给了我大脑中的亲爱的光芒？我简直无法相信我的64位环境会自动取消使用MAPI的资格。

由于

Answer 1

我相信Win32在Visual Studio C ++中是x86

Answer 2

您可以通过usihg corflags强制使用32位CLR。例如CorFlags.exe /32bit+ file.exe

Answer 3

有一个64位版本的MAPI与64位版本的MS Outlook一起提供。 This MSDN article详细描述了它。

Answer 4

所以，为了帮助那些帮助我的人，以及任何可能有类似问题并且发生在这个主题上的人，这就是我最终做的......

我从纯MAPI路线中走出来并决定改为使用Outlook PIA。所以现在我的代码看起来像这样：

#define nul Reflection::Missing::Value
#include "stdafx.h"
using namespace System;
using namespace Microsoft::Office::Interop;

int main(array<System::String ^> ^args)
{
    // Create the outlook object
    Outlook::Application^ olApp = gcnew Outlook::Application();

    // Get an instance of the MAPI namespace via the outlook object
    Outlook::NameSpace^ olNs = olApp->GetNamespace("MAPI");

    // Log this instance into the MAPI interface
    // Note that this will cause the user to be prompted for which profile
    // to use. At least, it prompts me, and I only have one profile anyway. Whatever.
    // Change the first argument to the name of the profile you want it to use (String)
    // to bypass this prompt. I personally have mine set to "Outlook".
    olNs->Logon(nul, nul, true, true);

    // Get my Inbox
    Outlook::Folder^ defFolder = safe_cast<Outlook::Folder^>(olNs->GetDefaultFolder(Outlook::OlDefaultFolders::olFolderInbox));

    // Get all of the items in the folder (messages, meeting notices, etc.)
    Outlook::Items^ fItems = defFolder->Items;

    // Sort them according to when they were received, descending order (most recent first)
    fItems->Sort("[ReceivedTime]", true);

    // Show me the folder name, and how many items are in it
    printf("\n%s: %d\n", defFolder->Name, fItems->Count);

    // Make an array of _MailItems to hold the messages.
    // Note that this is a _MailItem array, so it will only hold email messages.
    // Other item types (in my case, meeting notices) cannot be added to this array.
    array<Outlook::_MailItem^>^ mail = gcnew array<Outlook::_MailItem^>(fItems->Count);

    int itemNum = 1;
    int offset = 0;

    // If there's anything in my Inbox, do the following...
    if(fItems->Count)
    {
        // Try to grab the first email with "fItems->GetFirst()", and increment itemNum.
        try
        {
            mail[itemNum++] = safe_cast<Outlook::_MailItem^>(fItems->GetFirst());
        }
        // If it threw an exception, it's probably because the item isn't a _MailItem type.
        // Since nothing got assigned to mail[1], reset itemNum to 1
        catch(Exception^ eResult)
        {
            itemNum = 1;
        }

        // Ok, now use "fItems->GetNext()" to grab the rest of the messages
        for(; itemNum <= (fItems->Count-offset); itemNum++)
        {
            try
            {
                mail[itemNum] = safe_cast<Outlook::_MailItem^>(fItems->GetNext());
            }
            // If it puked, then nothing got assigned to mail[itemNum]. On the next iteration of
            // this for-loop, itemNum will be incremented, which means that *this* particular index
            // of the mail array would be left empty. To prevent this, decrement itemNum.
            // Also, if itemNum ever gets decremented, then that will ultimately cause this loop
            // to iterate more times than fItems->Count, causing an out-of-bounds error. To prevent
            // that, increment "offset" each time you decrement "itemNum" to compensate for the
            // offset.
            catch(Exception^ eResult)
            {
                itemNum--;
                offset++;
            }
        }

        // Show me the money!
        for(int i=1; i <= (fItems->Count-offset); i++)
            printf("%d - %s\n", i, mail[i]->Subject);
    }

    olNs->Logoff();
    return 0;
}

现在我知道如何进入，我可以继续完成我的项目！感谢大家的帮助！

干杯！ d

如何在x64环境中使用32位DLL？它不会让我强制x86编译！

4 个答案: