MFC发送电子邮件

//加载MAPI32.DLL动态库 
HMODULE   hMod   =   LoadLibrary( "MAPI32.DLL "); 

if   (hMod   ==   NULL) //加载动态库失败 
{ 
AfxMessageBox(AFX_IDP_FAILED_MAPI_LOAD); 
return; 
} 

//获取发送邮件的函数地址 
ULONG   (PASCAL   *lpfnSendMail)(ULONG,   ULONG,   MapiMessage*,   FLAGS,   ULONG); 
(FARPROC&)lpfnSendMail   =   GetProcAddress(hMod,   "MAPISendMail "); 

if   (lpfnSendMail   ==   NULL) 
{ 
AfxMessageBox(AFX_IDP_INVALID_MAPI_DLL); 
return; 
} 

int   nFileCount   =   m_list.GetCount(); //有多少个附件需要发送 

//分配内存保存附件信息 不能使用静态数组，因为不知道要发送附件的个数 
MapiFileDesc*   pFileDesc   =   (MapiFileDesc*)malloc(sizeof(MapiFileDesc)   *   nFileCount); 
memset(pFileDesc,0,sizeof(MapiFileDesc)   *   nFileCount); 

//分配内存保存附件文件路径 
TCHAR*   pTchPath   =   (TCHAR*)malloc(MAX_PATH   *   nFileCount); 

CString   szText; 
for(int   i   =   0;i   <   nFileCount;i++) 
{ 
TCHAR*   p   =   pTchPath   +   MAX_PATH   *   i; 
m_list.GetText(i,szText); 
strcpy(p,szText); 

(pFileDesc   +   i)-> nPosition   =   (ULONG)-1; 
(pFileDesc   +   i)-> lpszPathName   =   p; 
(pFileDesc   +   i)-> lpszFileName   =   p; 
} 

//收件人结构信息 
MapiRecipDesc   recip; 
memset(&recip,0,sizeof(MapiRecipDesc)); 
recip.lpszAddress =   m_szEmailMAPI.GetBuffer(0); 
recip.ulRecipClass   =   MAPI_TO; 

//邮件结构信息 
MapiMessage   message; 
memset(&message,   0,   sizeof(message)); 
message.nFileCount =   nFileCount; //文件个数 
message.lpFiles =   pFileDesc; //文件信息 
message.nRecipCount   =   1; //收件人个数 
message.lpRecips   =   &recip; //收件人 
message.lpszSubject =   m_szSubject.GetBuffer(0); //主题 
message.lpszNoteText=   m_szText.GetBuffer(0); //正文内容 

//保存本程序窗口指针，因为发完邮件后要返回本程序的窗口 
CWnd*   pParentWnd   =   CWnd::GetSafeOwner(NULL,   NULL); 

//发送邮件 
int   nError   =   lpfnSendMail(0,   0, 
&message,   MAPI_LOGON_UI|MAPI_DIALOG,   0); 

if   (nError   !=   SUCCESS_SUCCESS   &&   nError   !=   MAPI_USER_ABORT   
&&   nError   !=   MAPI_E_LOGIN_FAILURE) 
{ 
AfxMessageBox(AFX_IDP_FAILED_MAPI_SEND); 
} 

//返回程序 
pParentWnd-> SetActiveWindow(); 

//不要忘了释放分配的内存 
free(pFileDesc); 
free(pTchPath); 
FreeLibrary(hMod);

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