(Unicode C) Delete All IMAP Email

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

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

void ChilkatSample(void)
    {
    HCkImapW imap;
    BOOL success;
    HCkMessageSetW messageSet;
    int i;
    int n;

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

    imap = CkImapW_Create();

    // Turn on session logging:
    CkImapW_putKeepSessionLog(imap,TRUE);

    // Connect to an IMAP server.
    // Use TLS
    CkImapW_putSsl(imap,TRUE);
    CkImapW_putPort(imap,993);
    success = CkImapW_Connect(imap,L"imap.someMailServer.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.RubyMail");
    if (success != TRUE) {
        wprintf(L"%s\n",CkImapW_lastErrorText(imap));
        CkImapW_Dispose(imap);
        return;
    }

    // Get the complete set of Uids for email in the selected mailbox.
    messageSet = CkImapW_GetAllUids(imap);
    if (CkImapW_getLastMethodSuccess(imap) != TRUE) {
        wprintf(L"%s\n",CkImapW_lastErrorText(imap));
        CkImapW_Dispose(imap);
        return;
    }

    // Set the Deleted flag for each message.
    // (ExpungeAndClose must be called to finalize the delete.)
    success = CkImapW_SetFlags(imap,messageSet,L"Deleted",1);
    if (success != TRUE) {
        wprintf(L"%s\n",CkImapW_lastErrorText(imap));
        CkImapW_Dispose(imap);
        return;
    }

    // Alternatively, the Deleted flag may be set for each UID
    // individiually, but this is less efficient:

    n = CkMessageSetW_getCount(messageSet);
    for (i = 0; i <= n - 1; i++) {
        success = CkImapW_SetFlag(imap,CkMessageSetW_GetId(messageSet,i),CkMessageSetW_getHasUids(messageSet),L"Deleted",1);
        if (success != TRUE) {
            wprintf(L"%s\n",CkImapW_lastErrorText(imap));
            CkImapW_Dispose(imap);
            return;
        }

    }

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

    // Display the session log.
    wprintf(L"%s\n",CkImapW_sessionLog(imap));

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

    CkMessageSetW_Dispose(messageSet);


    CkImapW_Dispose(imap);

    }