Question

我需要创建一个小dll来拦截简单的mapi调用并通过以下方式发送文件：

file-＆gt;发送到附件（在excel，word，acrobat reader ...中）或通过explorer-＆gt; rightclickmenu-＆gt;发送至 - ＆gt;邮件收件人

附加到gmail。

阅读之后：

Mapi32.dll Stub Registry Settings (Windows)

Mapi32 Stub Library (Windows)

并在stackoverflow和其他网站上搜索我使用code :: blocks创建了一个非常小的dll，它显示了调查过程的信息。

我已正确安装在注册表中，如HKEY_LOCAL_MACHINE \ SOFTWARE \ Clients \ Mail \ SimpMapi上的上一个链接所示。

我在控制面板中选择了我的win xp pro-＆gt;我的SimpMapi客户端的Internet选项。

当我打开excel写一些单元格并转到File-＆gt;发送类似附件dll显示我首先调用MapiLogon，第二个调用MapiSendMail，第三个当我关闭excel时调用MapiLogoff，但然后它抛出错误并关闭excel .EXE。

如果我从资源管理器窗口右键单击一个文件和SendTo-＆gt;邮件收件人尝试它直接调用MapiSendMail，当我在MsgBox中单击确定它会抛出错误并关闭explorer.exe

你能帮我找出问题所在。

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
}

提前致谢。

豪尔赫

Answer 1

在链接中：Creating Custom Simple Mapi DLL, throws error when executing

安迪帮我解决了调用惯例错误的问题。

将WINAPI添加到我所有的简单MAPI函数声明和定义中，例如：

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

然后问题是导出的函数是用声明导出的。

要在code :: blocks中更正此问题，您必须添加：

主菜单：项目 - ＆gt;构建选项 - ＆gt; GNU GCC编译器 - ＆gt;链接器设置 - ＆gt;其他链接器选项：-Wl， - kill-at

谢谢！

创建自定义简单Mapi DLL，在执行时失败

1 个答案: