(Unicode C) Delete All IMAP Email

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

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

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

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

    success = FALSE;

    // 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.example.com");
    if (success == FALSE) {
        wprintf(L"%s\n",CkImapW_lastErrorText(imap));
        CkImapW_Dispose(imap);
        return;
    }

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

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

    // Get the complete set of Uids for email in the selected mailbox.
    messageSet = CkMessageSetW_Create();
    success = CkImapW_QueryMbx(imap,L"ALL",TRUE,messageSet);
    if (success == FALSE) {
        wprintf(L"%s\n",CkImapW_lastErrorText(imap));
        CkImapW_Dispose(imap);
        CkMessageSetW_Dispose(messageSet);
        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 == FALSE) {
        wprintf(L"%s\n",CkImapW_lastErrorText(imap));
        CkImapW_Dispose(imap);
        CkMessageSetW_Dispose(messageSet);
        return;
    }

    // Alternatively, the Deleted flag may be set for each UID
    // individiually, but this is less efficient:
    i = 0;
    n = CkMessageSetW_getCount(messageSet);
    while (i < n) {
        success = CkImapW_SetFlag(imap,CkMessageSetW_GetId(messageSet,i),CkMessageSetW_getHasUids(messageSet),L"Deleted",1);
        if (success == FALSE) {
            wprintf(L"%s\n",CkImapW_lastErrorText(imap));
            CkImapW_Dispose(imap);
            CkMessageSetW_Dispose(messageSet);
            return;
        }

        i = i + 1;
    }

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

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

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


    CkImapW_Dispose(imap);
    CkMessageSetW_Dispose(messageSet);

    }