(AutoIt) Fetch 1st N Headers of Search Results

Calls Search to get a message set, then downloads the 1st N messages in the message set. There are two equivalent ways of doing it: (1) iterate from 0 to N-1 and download each message individually, or (2) create a new message set that contains the 1st N messages and pass it to FetchHeaders. Both are demonstrated here.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

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

$oImap = ObjCreate("Chilkat.Imap")

; Connect to an IMAP server.
; Use TLS
$oImap.Ssl = True
$oImap.Port = 993
Local $bSuccess = $oImap.Connect("imap.someMailServer.com")
If ($bSuccess <> True) Then
    ConsoleWrite($oImap.LastErrorText & @CRLF)
    Exit
EndIf

; Login
$bSuccess = $oImap.Login("****","****")
If ($bSuccess <> True) Then
    ConsoleWrite($oImap.LastErrorText & @CRLF)
    Exit
EndIf

; Select an IMAP mailbox
$bSuccess = $oImap.SelectMailbox("Inbox")
If ($bSuccess <> True) Then
    ConsoleWrite($oImap.LastErrorText & @CRLF)
    Exit
EndIf

Local $oMessageSet
; We can choose to fetch UIDs or sequence numbers.
Local $bFetchUids = True
; Get the message IDs of all the emails in the mailbox
$oMessageSet = $oImap.Search("ALL",$bFetchUids)
If ($oImap.LastMethodSuccess = False) Then
    ConsoleWrite($oImap.LastErrorText & @CRLF)
    Exit
EndIf

Local $iNumFound = $oMessageSet.Count
If ($iNumFound = 0) Then
    ConsoleWrite("No messages found." & @CRLF)

    Exit
EndIf

; Get the 1st 10 messages in messageSet.
Local $iUpperBound = 10
If ($iNumFound < $iUpperBound) Then
    $iUpperBound = $iNumFound
EndIf

Local $i = 0
Local $bUid = $oMessageSet.HasUids
While $i < $iUpperBound

Local $oEmail = $oImap.FetchSingleHeader($oMessageSet.GetId($i),$bUid)
    If ($oImap.LastMethodSuccess = False) Then
        ConsoleWrite($oImap.LastErrorText & @CRLF)

        Exit

    Else
        ; Do whatever is needed with the email.. 
        ; ....

    EndIf

    $i = $i + 1
Wend

; Alternatively, create a new message set containing the 1st 10 message id's (UID's) 
; from the search results message set:
$oFirstTen = ObjCreate("Chilkat.MessageSet")

For $i = 0 To $iUpperBound - 1
    $oFirstTen.InsertId $oMessageSet.GetId($i)
Next

; Download the 1st ten headers:
Local $oBundle
$oBundle = $oImap.FetchHeaders($oFirstTen)
If ($oImap.LastMethodSuccess = False) Then

    ConsoleWrite($oImap.LastErrorText & @CRLF)
    Exit
EndIf

; Other examples show how to iterate over the emails contained within the bundle...

; Disconnect from the IMAP server.
$bSuccess = $oImap.Disconnect()