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

loImap = createobject("CkImap")

// Connect to an IMAP server.
// Use TLS
loImap.Ssl = .T.
loImap.Port = 993
llSuccess = loImap.Connect("MY-IMAP-DOMAIN")
if (llSuccess <> .T.) then
    ? loImap.LastErrorText
    release loImap
    return
endif

// Login
llSuccess = loImap.Login("MY-IMAP-LOGIN","MY-IMAP-PASSWORD")
if (llSuccess <> .T.) then
    ? loImap.LastErrorText
    release loImap
    return
endif

// Create a simple email with 2 recipients.
loEmail = createobject("CkEmail")
loEmail.From = "support@chilkatsoft.com"
loEmail.AddTo("Chilkat Sales","sales@chilkatsoft.com")
loEmail.AddTo("Chilkat GMail","chilkat.support@gmail.com")
loEmail.Body = "This is a test email."
loEmail.Subject = "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.
loTask = loImap.AppendMailAsync("[Gmail]/Sent Mail",loEmail)
if (loImap.LastMethodSuccess <> .T.) then
    ? loImap.LastErrorText
    release loImap
    release loEmail
    return
endif

// Schedule the task for running on the thread pool.  This changes the task's state
// from Inert to Live.  The task is now running...
llSuccess = loTask.Run()
if (llSuccess <> .T.) then
    ? loTask.LastErrorText
    release loTask
    release loImap
    release loEmail
    return
endif

// -------------------------------------------------------------------------------
// 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.


release loImap
release loEmail