DataFlex

Delete All IMAP Email

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

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoImap
    Variant vMessageSet
    Handle hoMessageSet
    Integer i
    Integer n
    String sTemp1
    Integer iTemp1
    Boolean bTemp1

    Move False To iSuccess

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

    Get Create (RefClass(cComChilkatImap)) To hoImap
    If (Not(IsComObjectCreated(hoImap))) Begin
        Send CreateComObject of hoImap
    End

    // Turn on session logging:
    Set ComKeepSessionLog Of hoImap To True

    // Connect to an IMAP server.
    // Use TLS
    Set ComSsl Of hoImap To True
    Set ComPort Of hoImap To 993
    Get ComConnect Of hoImap "imap.example.com" To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoImap To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Login
    Get ComLogin Of hoImap "myLogin" "myPassword" To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoImap To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Select an IMAP mailbox
    Get ComSelectMailbox Of hoImap "Inbox.RubyMail" To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoImap To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Get the complete set of Uids for email in the selected mailbox.
    Get Create (RefClass(cComChilkatMessageSet)) To hoMessageSet
    If (Not(IsComObjectCreated(hoMessageSet))) Begin
        Send CreateComObject of hoMessageSet
    End
    Get pvComObject of hoMessageSet to vMessageSet
    Get ComQueryMbx Of hoImap "ALL" True vMessageSet To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoImap To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Set the Deleted flag for each message.
    // (ExpungeAndClose must be called to finalize the delete.)
    Get pvComObject of hoMessageSet to vMessageSet
    Get ComSetFlags Of hoImap vMessageSet "Deleted" 1 To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoImap To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Alternatively, the Deleted flag may be set for each UID
    // individiually, but this is less efficient:
    Move 0 To i
    Get ComCount Of hoMessageSet To n
    While (i < n)
        Get ComGetId Of hoMessageSet i To iTemp1
        Get ComHasUids Of hoMessageSet To bTemp1
        Get ComSetFlag Of hoImap iTemp1 bTemp1 "Deleted" 1 To iSuccess
        If (iSuccess = False) Begin
            Get ComLastErrorText Of hoImap To sTemp1
            Showln sTemp1
            Procedure_Return
        End

        Move (i + 1) To i
    Loop

    // Expunge and close the mailbox.
    Get ComExpungeAndClose Of hoImap To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoImap To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Display the session log.
    Get ComSessionLog Of hoImap To sTemp1
    Showln sTemp1

    // Disconnect from the IMAP server.
    Get ComDisconnect Of hoImap To iSuccess


End_Procedure