创建自定义简单Mapi DLL，执行时失败

Question

我需要创建一个小的DLL来拦截简单的mapi调用和发送文件:

file->作为附件发送到(在excel, word, acrobatreader…)或通过浏览器->右键菜单->发送到->邮件收件人

附加到gmail。

看完后:

Mapi32.dll Stub Registry Settings (Windows)

Mapi32 Stub Library (Windows)

和搜索这里的stackoverflow和其他网站，我已经创建了一个非常小的DLL使用代码::块，显示我的信息调查的过程。

我已经正确地将它安装在注册表上，就像以前在HKEY_LOCAL_MACHINESOFTWAREClientsMailSimpMapi上的链接所指示的那样。

我在win xp pro的控制面板->Internet选项中选择了SimpMapi客户端。

当我打开excel写一些单元格，去文件->发送像附件dll显示我第一次调用MapiLogon，第二个调用MapiSendMail和第三当我关闭excel它调用MapiLogoff，但随后它抛出一个错误并关闭excel.exe。

如果我尝试从浏览器窗口右键单击一个文件SendTo->邮件收件人它直接调用MapiSendMail，当我点击ok在MsgBox它抛出一个错误并关闭explorer.exe

你能帮我看看是哪里出了问题吗?

这是mail.h文件:

#ifndef __MAIN_H__
#define __MAIN_H__
#include <windows.h>
// Todo lo necesario a incluir por mapi.h
#define SUCCESS_SUCCESS         0
#define MAPI_E_USER_ABORT       1
#define MAPI_E_LOGIN_FAILURE    3
typedef unsigned long FLAGS;
typedef unsigned long LHANDLE;
typedef unsigned long FAR *LPLHANDLE, FAR *LPULONG;
typedef struct {
  ULONG ulReserved;
  ULONG ulRecipClass;
  LPSTR lpszName;
  LPSTR lpszAddress;
  ULONG ulEIDSize;
  LPVOID lpEntryID;
} MapiRecipDesc, *lpMapiRecipDesc;
typedef struct {
  ULONG ulReserved;
  ULONG flFlags;
  ULONG nPosition;
  LPSTR lpszPathName;
  LPSTR lpszFileName;
  LPVOID lpFileType;
} MapiFileDesc, *lpMapiFileDesc;
typedef struct {
  ULONG ulReserved;
  LPSTR lpszSubject;
  LPSTR lpszNoteText;
  LPSTR lpszMessageType;
  LPSTR lpszDateReceived;
  LPSTR lpszConversationID;
  FLAGS flFlags;
  lpMapiRecipDesc lpOriginator;
  ULONG nRecipCount;
  lpMapiRecipDesc lpRecips;
  ULONG nFileCount;
  lpMapiFileDesc lpFiles;
} MapiMessage, *lpMapiMessage;

/*  To use this exported function of dll, include this header
 *  in your project.
 */
#ifdef BUILD_DLL
    #define DLL_EXPORT __declspec(dllexport)
#else
    #define DLL_EXPORT __declspec(dllimport)
#endif
extern "C" void DLL_EXPORT SomeFunction(const LPCSTR sometext);
extern "C" ULONG DLL_EXPORT MAPILogon(ULONG_PTR ulUIParam,LPSTR lpszProfileName,LPSTR lpszPassword,FLAGS flFlags,ULONG ulReserved,LPLHANDLE lplhSession);
extern "C" ULONG DLL_EXPORT MAPILogoff(LHANDLE lhSession,ULONG_PTR ulUIParam,FLAGS flFlags,ULONG ulReserved);
extern "C" ULONG DLL_EXPORT MAPISendDocuments(ULONG_PTR ulUIParam,LPSTR lpszDelimChar,LPSTR lpszFilePaths,LPSTR lpszFileNames,ULONG ulReserved);
extern "C" ULONG DLL_EXPORT MAPISendMail(LHANDLE lhSession,ULONG_PTR ulUIParam,lpMapiMessage lpMessage,FLAGS flFlags,ULONG ulReserved);
#endif

这是main.cpp文件:

#include "main.h"
// a sample exported function
void DLL_EXPORT SomeFunction(const LPCSTR sometext)
{
    MessageBoxA(0, sometext, "DLL Message", MB_OK | MB_ICONINFORMATION);
}
ULONG DLL_EXPORT MAPILogon(ULONG_PTR ulUIParam,LPSTR lpszProfileName,LPSTR lpszPassword,FLAGS flFlags,ULONG ulReserved,LPLHANDLE lplhSession)
{
    MessageBoxA(0, "MAPILogon", "MAPILogon", MB_OK | MB_ICONINFORMATION);
    return SUCCESS_SUCCESS;
}
ULONG DLL_EXPORT MAPILogoff(LHANDLE lhSession,ULONG_PTR ulUIParam,FLAGS flFlags,ULONG ulReserved)
{
    MessageBoxA(0, "MAPILogoff", "MAPILogoff", MB_OK | MB_ICONINFORMATION);
    return SUCCESS_SUCCESS;
}
ULONG DLL_EXPORT MAPISendDocuments(ULONG_PTR ulUIParam,LPSTR lpszDelimChar,LPSTR lpszFilePaths,LPSTR lpszFileNames,ULONG ulReserved)
{
    MessageBoxA(0, "MAPISendDocuments", "MAPISendDocuments", MB_OK | MB_ICONINFORMATION);
    return SUCCESS_SUCCESS;
}
ULONG DLL_EXPORT MAPISendMail(LHANDLE lhSession,ULONG_PTR ulUIParam,lpMapiMessage lpMessage,FLAGS flFlags,ULONG ulReserved)
{
    MessageBoxA(0, "MAPISendMail", "MAPISendMail", MB_OK | MB_ICONINFORMATION);
    return SUCCESS_SUCCESS;
}
extern "C" DLL_EXPORT BOOL APIENTRY DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
{
    switch (fdwReason)
    {
        case DLL_PROCESS_ATTACH:
            // attach to process
            // return FALSE to fail DLL load
            break;
        case DLL_PROCESS_DETACH:
            // detach from process
            break;
        case DLL_THREAD_ATTACH:
            // attach to thread
            break;
        case DLL_THREAD_DETACH:
            // detach from thread
            break;
    }
    return TRUE; // succesful
}

提前感谢。

Jorge

Answer 1

在链接中:创建自定义简单Mapi DLL，执行

时抛出错误

Andy帮我解决了错误调用约定的问题。

将WINAPI添加到我所有的简单MAPI函数声明和定义中它工作了，例如:

extern "C" ULONG DLL_EXPORT WINAPI MAPILogon( // etc

然后问题是我导出的函数是带声明导出的。

要在code::blocks中纠正这个错误，你必须添加:

主菜单:Project -> Build options -> GNU GCC Compiler -> link settings ->其他link options: - wl，——kill-at

谢谢!