Sample code for 30+ languages & platforms
Unicode C++

Read Gmail POP3 Mailbox

Reads the header for each email in a GMail POP3 mailbox and displays the FROM and SUBJECT header fields. In your GMail "Forwarding and POP" settings, be sure to select "When messages are accessed with POP keep Gmail's copy in the Inbox".

Chilkat Unicode C++ Downloads

Unicode C++
#include <CkMailManW.h>
#include <CkEmailBundleW.h>
#include <CkEmailW.h>

void ChilkatSample(void)
    {
    bool success = false;

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    // The mailman object is used for receiving (POP3) 
    // and sending (SMTP) email.
    CkMailManW mailman;

    // Set the GMail account POP3 properties.
    mailman.put_MailHost(L"pop.gmail.com");
    mailman.put_PopUsername(L"myLogin");
    mailman.put_PopPassword(L"myPassword");
    mailman.put_PopSsl(true);
    mailman.put_MailPort(995);

    // Read mail headers and one line of the body.
    // To get the full emails, set headersOnly = false
    CkEmailBundleW bundle;
    bool keepOnServer = true;
    bool headersOnly = true;
    int numBodyLines = 1;
    success = mailman.FetchAll(keepOnServer,headersOnly,numBodyLines,bundle);
    if (success == false) {
        wprintf(L"%s\n",mailman.lastErrorText());
        return;
    }

    int i = 0;
    CkEmailW email;
    while (i < bundle.get_MessageCount()) {
        bundle.EmailAt(i,email);

        // Display the From email address and the subject.
        wprintf(L"From: %s\n",email.ck_from());
        wprintf(L"Subject: %s\n",email.subject());

        i = i + 1;
    }
    }