Sort Email by Date

Read a POP3 mailbox and sort by Date. The POP3 protocol does not provide the ability to download emails within a date range. However, once emails are downloaded, they may be sorted by date using the Chilkat email bundle object.

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// Needs #include <CkMailMan.h>
// Needs #include <CkEmailBundle.h>
// Needs #include <CkEmail.h>

    CkString strOut;

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

    //  Any string argument automatically begins the 30-day trial.
    bool success;
    success = mailman.UnlockComponent("30-day trial");
    if (success != true) {
        strOut.append("Component unlock failed\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    //  Set the POP3 server's hostname
    mailman.put_MailHost("mail.chilkatsoft.com");

    //  Set the POP3 login/password.
    mailman.put_PopUsername("matt@chilkatsoft.com");
    mailman.put_PopPassword("****");

    CkEmailBundle *bundle = 0;

    //  Copy the all email from the user's POP3 mailbox
    //  into a bundle object.  The email remains on the server.
    //  You may copy full emails, or headers-only. Call CopyMail
    //  to copy full emails.  Call GetAllHeaders to copy email headers.
    //  bundle = mailman.CopyMail();
    long numBodyLines;
    numBodyLines = 1;
    bundle = mailman.GetAllHeaders(numBodyLines);

    if (bundle == 0 ) {
        strOut.append(mailman.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    //  Sort the email in the bundle by date.
    bool ascending;
    ascending = true;
    bundle->SortByDate(ascending);

    long i;
    CkEmail *email = 0;
    for (i = 0; i <= bundle->get_MessageCount() - 1; i++) {
        email = bundle->GetEmail(i);
        strOut.append(email->getHeaderField("Date"));
        strOut.append("\r\n");
        delete email;
    }

    delete bundle;

    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());