(Unicode C) Async Upload (Append) Email to an IMAP Mailbox

Use the AppendMailAsync method call to append an email to an IMAP mailbox.

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#include <C_CkImapW.h>
#include <C_CkEmailW.h>
#include <C_CkTaskW.h>

void ChilkatSample(void)
    {
    HCkImapW imap;
    BOOL success;
    HCkEmailW email;
    HCkTaskW task;

    // 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);
    success = CkImapW_Connect(imap,L"MY-IMAP-DOMAIN");
    if (success != TRUE) {
        wprintf(L"%s\n",CkImapW_lastErrorText(imap));
        CkImapW_Dispose(imap);
        return;
    }

    // Login
    success = CkImapW_Login(imap,L"MY-IMAP-LOGIN",L"MY-IMAP-PASSWORD");
    if (success != TRUE) {
        wprintf(L"%s\n",CkImapW_lastErrorText(imap));
        CkImapW_Dispose(imap);
        return;
    }

    // Create a simple email with 2 recipients.
    email = CkEmailW_Create();
    CkEmailW_putFrom(email,L"support@chilkatsoft.com");
    CkEmailW_AddTo(email,L"Chilkat Sales",L"sales@chilkatsoft.com");
    CkEmailW_AddTo(email,L"Chilkat GMail",L"chilkat.support@gmail.com");
    CkEmailW_putBody(email,L"This is a test email.");
    CkEmailW_putSubject(email,L"This is a test email.");

    // Imagine we've sent this email via SMTP, and now we want to 
    // save the email to our "Sent" mailbox.  On GMail, the mailbox name
    // for sent email is "[Gmail]/Sent Mail".

    // Call the async version of the AppendMail method to return a task object.
    task = CkImapW_AppendMailAsync(imap,L"[Gmail]/Sent Mail",email);
    if (CkImapW_getLastMethodSuccess(imap) != TRUE) {
        wprintf(L"%s\n",CkImapW_lastErrorText(imap));
        CkImapW_Dispose(imap);
        CkEmailW_Dispose(email);
        return;
    }

    // Schedule the task for running on the thread pool.  This changes the task's state
    // from Inert to Live.  The task is now running...
    success = CkTaskW_Run(task);
    if (success != TRUE) {
        wprintf(L"%s\n",CkTaskW_lastErrorText(task));
        CkTaskW_Dispose(task);
        CkImapW_Dispose(imap);
        CkEmailW_Dispose(email);
        return;
    }

    // -------------------------------------------------------------------------------
    // The following is a general note that applies to all programming languages:
    // -------------------------------------------------------------------------------
    // Your application can keep a reference to the task object and periodically check back later to see if it's finished.
    // If your programming language is one that supports callbacks, then the TaskCompleted callback can
    // be setup to be called when the task completes.  (See the "Async" category on example-code.com for more information.)
    // 
    // NOTE: This is very important:  A TaskCompleted callback runs in the background thread.  
    // (All callbacks from an async task, such as AbortCheck, PercentDone, ProgressInfo, etc. are in the background thread.) 
    // An application that uses TaskCompleted must be very careful.  
    // For example, user interface elements (such as labels, text boxes, etc.) may not be directly
    // accessible from a background thread, and could crash the application if directly accessed.  Also, attempting to debug
    // code running in a background thread from an IDE, especially an older IDE (such as VB6) is likely to crash the IDE.


    CkImapW_Dispose(imap);
    CkEmailW_Dispose(email);

    }