(Unicode C++) IMAP Delete Old Email (before a specified date)

Demonstrates how to delete email older than a particular date.

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#include <CkImapW.h>
#include <CkMessageSetW.h>
#include <CkEmailW.h>

void ChilkatSample(void)
    {
    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkImapW imap;

    // Connect to an IMAP server.
    // Use TLS
    imap.put_Ssl(true);
    imap.put_Port(993);
    // Use your IMAP server domain.  This example 
    bool success = imap.Connect(L"my-imap-server-domain.com");
    if (success != true) {
        wprintf(L"%s\n",imap.lastErrorText());
        return;
    }

    // Login
    success = imap.Login(L"myLogin",L"myPassword");
    if (success != true) {
        wprintf(L"%s\n",imap.lastErrorText());
        return;
    }

    // Select an IMAP mailbox
    success = imap.SelectMailbox(L"Inbox");
    if (success != true) {
        wprintf(L"%s\n",imap.lastErrorText());
        return;
    }

    // Get message ID's for emails older than 1/1/2018
    CkMessageSetW *messageSet = 0;
    bool fetchUids = true;
    messageSet = imap.Search(L"SENTBEFORE 01-Jan-2018",fetchUids);
    if (imap.get_LastMethodSuccess() == false) {
        wprintf(L"%s\n",imap.lastErrorText());
        return;
    }

    // If desired, we can examine the Subject of each email to be deleted..
    int i = 0;
    int count = messageSet->get_Count();
    while (i < count) {
        CkEmailW *email = imap.FetchSingleHeader(messageSet->GetId(i),true);
        if (imap.get_LastMethodSuccess() == true) {
            wprintf(L"%s\n",email->subject());
            delete email;
        }

        i = i + 1;
    }

    // Set the Deleted flag for each message:
    success = imap.SetFlags(*messageSet,L"Deleted",1);
    if (success != true) {
        wprintf(L"%s\n",imap.lastErrorText());
        delete messageSet;
        return;
    }

    // Expunge and close the mailbox.
    success = imap.ExpungeAndClose();
    if (success != true) {
        wprintf(L"%s\n",imap.lastErrorText());
        delete messageSet;
        return;
    }

    // Disconnect from the IMAP server.
    success = imap.Disconnect();

    delete messageSet;
    }