(Unicode C++) Delete Email Individually (One at a time) from an IMAP Mailbox

Downloads email from an IMAP mailbox and deletes emails individually (one by one).

Note: This example requires Chilkat v11.0.0 or greater.

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

void ChilkatSample(void)
    {
    bool success = false;

    // 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);
    success = imap.Connect(L"imap.someMailServer.com");
    if (success == false) {
        wprintf(L"%s\n",imap.lastErrorText());
        return;
    }

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

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

    // We can choose to fetch UIDs or sequence numbers.
    bool fetchUids = true;

    // Get the message IDs of all the emails in the mailbox
    CkMessageSetW messageSet;
    success = imap.QueryMbx(L"ALL",fetchUids,messageSet);
    if (success == false) {
        wprintf(L"%s\n",imap.lastErrorText());
        return;
    }

    // Fetch the emails into a bundle object:
    CkEmailBundleW bundle;
    bool headersOnly = false;
    success = imap.FetchMsgSet(headersOnly,messageSet,bundle);
    if (success == false) {
        wprintf(L"%s\n",imap.lastErrorText());
        return;
    }

    // To mark a complete set of emails for deletion, call SetFlags:
    success = imap.SetFlags(messageSet,L"Deleted",1);
    if (success == false) {
        wprintf(L"%s\n",imap.lastErrorText());
        return;
    }

    // Messages can also be marked for deletion individually:
    // Loop over the bundle and mark each message for deletion.
    CkEmailW email;
    int i = 0;
    int numEmails = bundle.get_MessageCount();
    while (i < numEmails) {
        bundle.EmailAt(i,email);

        wprintf(L"%s\n",email.ck_from());
        wprintf(L"%s\n",email.subject());

        // To delete this email, set the "Deleted" flag to 1.
        // The email is not actually deleted until Expunge or
        // ExpungeAndClose is called.
        success = imap.SetMailFlag(email,L"Deleted",1);
        if (success == false) {
            wprintf(L"%s\n",imap.lastErrorText());
            return;
        }

        wprintf(L"--\n");

        i = i + 1;
    }

    success = imap.ExpungeAndClose();
    if (success == false) {
        wprintf(L"%s\n",imap.lastErrorText());
        return;
    }

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