Visual C++ - Parse Email

After you received the emails from email server to the local folder, we can use the following code to parse the email now. The following c++ code demonstrates how to parse from, to, cc, subject, body text, attachments of specified EML file.

Installation

Before you can use the following sample codes, you should download the EAGetMail Installer and install it on your machine at first. Full sample projects are included in this installer.

Add Reference

To use EAGetMail POP3 & IMAP4 ActiveX Object in your project, the first step is “Add header files of EAGetMail to your project”. Please go to C:\Program Files\EAGetMail\Samples_VS2008\pop3_imap4_simple.vcNative or C:\Program Files (x86)\EAGetMail\Samples_VS2008\pop3_imap4_simple.vcNative folder, find eagetmailobj.tlh and eagetmailobj.tli, and then copy these files to your project folder. You can start to use it to retrieve email and parse email in your project.

add reference in C++

Visual C++ - Parse Email - Example

The following example codes demonstrate parsing email (*.EML) file. In order to run it correctly, please change email server, user, password, folder, file name value to yours.

Note

To get full sample projects, please download and install EAGetMail on your machine.

#include "stdafx.h"

#include "eagetmailobj.tlh"
using namespace EAGetMailObjLib;

void ParseEmail(LPCTSTR lpszFile)
{
    try
    {
        IMailPtr oMail = NULL;
        oMail.CreateInstance("EAGetMailObj.Mail");
        oMail->LicenseCode = _T("TryIt");

        oMail->LoadFile(lpszFile, VARIANT_FALSE);

        // Parse email sender
        _tprintf(_T("From: %s\r\n"), (const TCHAR*)oMail->From->Address);

        // Parse to recipient
        _variant_t varry = oMail->To;
        SAFEARRAY *psa = varry.parray;
        long i = 0, LBound = 0, UBound = 0;
        SafeArrayGetLBound(psa, 1, &LBound);
        SafeArrayGetUBound(psa, 1, &UBound);
        for(i = LBound; i <= UBound; i++)
        {
            _variant_t vt;
            SafeArrayGetElement(psa, &i, &vt);

            IMailAddressPtr pAddr;
            vt.pdispVal->QueryInterface(__uuidof(IMailAddress), (void**)&pAddr);
            _tprintf(_T("To: %s\r\n"), (const TCHAR*)pAddr->Address);
        }

        // Parse CC
        varry = oMail->Cc;
        psa = varry.parray;
        SafeArrayGetLBound(psa, 1, &LBound);
        SafeArrayGetUBound(psa, 1, &UBound);
        for(i = LBound; i <= UBound; i++)
        {
            _variant_t vt;
            SafeArrayGetElement(psa, &i, &vt);

            IMailAddressPtr pAddr;
            vt.pdispVal->QueryInterface(__uuidof(IMailAddress), (void**)&pAddr);
            _tprintf(_T("Cc: %s\r\n"), (const TCHAR*)pAddr->Address);
        }

        // Parse email subject
        _tprintf(_T("Subject: %s\r\n"), (const TCHAR*)oMail->Subject);

        // Parse email text body
        _tprintf(_T("TextBody: %s\r\n"), (const TCHAR*)oMail->TextBody);

        // Parse email HTML body
        _tprintf(_T("HtmlBody: %s\r\n"), (const TCHAR*)oMail->HtmlBody);

        // Parse attachment
        varry = oMail->Attachments;
        psa = varry.parray;
        SafeArrayGetLBound(psa, 1, &LBound);
        SafeArrayGetUBound(psa, 1, &UBound);
        for(i = LBound; i <= UBound; i++)
        {
            _variant_t vt;
            SafeArrayGetElement(psa, &i, &vt);

            IAttachmentPtr pAtt;
            vt.pdispVal->QueryInterface(__uuidof(IAttachment), (void**)&pAtt);
            _tprintf(_T("Attachment: %s\r\n"), (const TCHAR*)pAtt->Name);
        }

    }
    catch(_com_error &ep)
    {
        _tprintf(_T("Error: %s\r\n"), (const TCHAR*)ep.Description());
    }
}

int _tmain(int argc, _TCHAR* argv[])
{
    // Initialize COM environment
    ::CoInitialize(NULL);

    ParseEmail(_T("c:\\my folder\\test.eml"));

    return 0;
}

32bit/x64 ActiveX DLL

Seperate builds of run-time dll for 32 and x64 platform

File Platform
Installation Path\EAGetMailObj.dll 32 bit
Installation Path\x64\EAGetMailObj.dll 64 bit

Distribution

  • Standard EXE

    For VB6, C++, Delphi or other standard exe application, you can distribute EAGetMailObj.dll with your application to target machine without COM-registration and installer. To learn more detail, please have a look at Registration-free COM with Manifest File.

  • Script

    For ASP, VBScript, VBA, MS SQL Stored Procedure, you need to install EAGetMail on target machine by EAGetMail installer, both 32bit/x64 DLL are installed and registered.

Appendix

Comments

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