在VC中调用默认的电子邮件程序发送邮件

    技术2022-05-11  21

    1、省事儿的,用ShellExecute函数:

    ShellExecute(NULL,NULL,"mailto:email@263.net",NULL,NULL,SW_SHOW);

    2、如果想自己多处理一些东西的话,比如加上默认的帐号、密码、附件等,就可以调用系统的Mapi函数。具体的用法大家可以去查MSDN都是以MAPI开头的,如MAPILogon、MAPISendMail等。下面这段代码演示如何调用默认的邮件程序发送邮件。

    //必须包括 mapi.h 头文件#include "mapi.h"                  /********************************************************************** 函数名称:CSendEMailDlg::OnSendMapi* 说明:  调用MAPI函数发送邮件。* 作者:  Geng* 时间 : 2003-04-22 20:08:30 *********************************************************************/void CSendEMailDlg::OnSendMapi() {        UpdateData(true);        //装入MAPI32.DLL动态库        HMODULE hMod = LoadLibrary("MAPI32.DLL");        if (hMod == NULL)        {               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;

            recip.lpszName          = "Your Name";         //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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