我需要创建小 dll 来拦截简单的 mapi 调用并通过以下方式发送文件：
文件->作为附件发送到（在 excel、word、acrobat 阅读器中...）或通过资源管理器->右键菜单->发送到->邮件收件人
附加到 gmail。
读完后：
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，它向我显示了用于调查该过程的信息。
我已将它正确安装在注册表中，如 HKEY_LOCAL_MACHINE\SOFTWARE\Clients\Mail\SimpMapi 上的先前链接所示。
我在我的 win xp pro 上的控制面板-> Internet 选项中选择了我的 SimpMapi 客户端。
当我打开 excel 写入一些单元格并转到 File->Send like attachment dll 显示我首先调用 MapiLogon，第二次调用 MapiSendMail，第三次在我关闭 excel 时调用 MapiLogoff，但随后它抛出错误并关闭 excel.exe。
如果我从资源管理器窗口尝试它，右键单击一个文件和 SendTo->Mail 收件人，它会直接调用 MapiSendMail，当我在 MsgBox 中单击 ok 时，它会引发错误并关闭 explorer.exe
你能帮我找出问题所在吗？
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
}
提前致谢。
乔治