Delete All IMAP Email

Demonstrates two ways to delete all email in a mailbox on an IMAP server.

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#include <CkImap.h>
#include <CkMessageSet.h>

void ChilkatSample(void)
    {
    bool success;
    CkImap imap;

    //  Anything unlocks the component and begins a fully-functional 30-day trial.
    success = imap.UnlockComponent("Anything for 30-day trial");
    if (success != true) {
        printf("%s\n",imap.lastErrorText());
        return;
    }

    //  Turn on session logging:
    imap.put_KeepSessionLog(true);

    //  Connect to an IMAP server.
    success = imap.Connect("mail.chilkatsoft.com");
    if (success != true) {
        printf("%s\n",imap.lastErrorText());
        return;
    }

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

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

    CkMessageSet *messageSet = 0;

    //  Get the complete set of Uids for email in the selected mailbox.
    messageSet = imap.GetAllUids();
    if (messageSet == 0 ) {
        printf("%s\n",imap.lastErrorText());
        return;
    }

    //  Set the Deleted flag for each message.
    //  (ExpungeAndClose must be called to finalize the delete.)
    success = imap.SetFlags(*messageSet,"Deleted",1);
    if (success != true) {
        printf("%s\n",imap.lastErrorText());
        return;
    }

    //  Alternatively, the Deleted flag may be set for each UID
    //  individiually, but this is less efficient:
    long i;
    long n;
    n = messageSet->get_Count();
    for (i = 0; i <= n - 1; i++) {
        success = imap.SetFlag(messageSet->GetId(i),messageSet->get_HasUids(),"Deleted",1);
        if (success != true) {
            printf("%s\n",imap.lastErrorText());
            return;
        }

    }

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

    //  Display the session log.
    printf("%s\n",imap.sessionLog());

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

    delete messageSet;
    }