(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 <C_CkImapW.h>
#include <C_CkMessageSetW.h>
#include <C_CkEmailW.h>

void ChilkatSample(void)
    {
    HCkImapW imap;
    BOOL success;
    HCkMessageSetW messageSet;
    BOOL fetchUids;
    int i;
    int count;
    HCkEmailW email;

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

    imap = CkImapW_Create();

    // Connect to an IMAP server.
    // Use TLS
    CkImapW_putSsl(imap,TRUE);
    CkImapW_putPort(imap,993);
    // Use your IMAP server domain.  This example 
    success = CkImapW_Connect(imap,L"my-imap-server-domain.com");
    if (success != TRUE) {
        wprintf(L"%s\n",CkImapW_lastErrorText(imap));
        CkImapW_Dispose(imap);
        return;
    }

    // Login
    success = CkImapW_Login(imap,L"myLogin",L"myPassword");
    if (success != TRUE) {
        wprintf(L"%s\n",CkImapW_lastErrorText(imap));
        CkImapW_Dispose(imap);
        return;
    }

    // Select an IMAP mailbox
    success = CkImapW_SelectMailbox(imap,L"Inbox");
    if (success != TRUE) {
        wprintf(L"%s\n",CkImapW_lastErrorText(imap));
        CkImapW_Dispose(imap);
        return;
    }

    // Get message ID's for emails older than 1/1/2018

    fetchUids = TRUE;
    messageSet = CkImapW_Search(imap,L"SENTBEFORE 01-Jan-2018",fetchUids);
    if (CkImapW_getLastMethodSuccess(imap) == FALSE) {
        wprintf(L"%s\n",CkImapW_lastErrorText(imap));
        CkImapW_Dispose(imap);
        return;
    }

    // If desired, we can examine the Subject of each email to be deleted..
    i = 0;
    count = CkMessageSetW_getCount(messageSet);
    while (i < count) {
        email = CkImapW_FetchSingleHeader(imap,CkMessageSetW_GetId(messageSet,i),TRUE);
        if (CkImapW_getLastMethodSuccess(imap) == TRUE) {
            wprintf(L"%s\n",CkEmailW_subject(email));
            CkEmailW_Dispose(email);
        }

        i = i + 1;
    }

    // Set the Deleted flag for each message:
    success = CkImapW_SetFlags(imap,messageSet,L"Deleted",1);
    if (success != TRUE) {
        wprintf(L"%s\n",CkImapW_lastErrorText(imap));
        CkMessageSetW_Dispose(messageSet);
        CkImapW_Dispose(imap);
        return;
    }

    // Expunge and close the mailbox.
    success = CkImapW_ExpungeAndClose(imap);
    if (success != TRUE) {
        wprintf(L"%s\n",CkImapW_lastErrorText(imap));
        CkMessageSetW_Dispose(messageSet);
        CkImapW_Dispose(imap);
        return;
    }

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

    CkMessageSetW_Dispose(messageSet);


    CkImapW_Dispose(imap);

    }