(DataFlex) Send UTF-16 on TCP or TLS Socket

See more Socket/SSL/TLS Examples

Demonstrates how to send a string on a connected TCP or SSL/TLS socket such that it is the utf-16 byte representation that is sent.

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

Use ChilkatAx-9.5.0-win32.pkg

Procedure Test
    Handle hoSocket
    Boolean iTls
    Integer iMaxWaitMs
    String sDomainOrIpAddr
    Integer iPort
    Boolean iSuccess
    Variant vSbXml
    Handle hoSbXml
    String sTemp1

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

    Get Create (RefClass(cComChilkatSocket)) To hoSocket
    If (Not(IsComObjectCreated(hoSocket))) Begin
        Send CreateComObject of hoSocket
    End

    Move False To iTls
    Move 20000 To iMaxWaitMs
    Move "example.com" To sDomainOrIpAddr
    Move 1234 To iPort

    // Connect to the whatever is expecting our connection...
    Get ComConnect Of hoSocket sDomainOrIpAddr iPort iTls iMaxWaitMs To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoSocket To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Let's say we have an XML file saved in the utf-16 byte representation,
    // and we want to send it over the connection using the utf-16 byte representation...

    // First the file into a Chilkat StringBuilder.
    // Tell the LoadFile method that we are reading utf-16 bytes..
    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbXml
    If (Not(IsComObjectCreated(hoSbXml))) Begin
        Send CreateComObject of hoSbXml
    End
    Get ComLoadFile Of hoSbXml "qa_data/xml/myUtf16.xml" "utf-16" To iSuccess
    If (iSuccess <> True) Begin
        Showln "Failed to load utf-16 XML file.."
        Procedure_Return
    End

    // Tell the socket object that we wish to send the utf-16 byte representation of the string.
    Set ComStringCharset Of hoSocket To "utf-16"

    // Send the string as utf-16 bytes.
    Get pvComObject of hoSbXml to vSbXml
    Get ComSendSb Of hoSocket vSbXml To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoSocket To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Let's say we wanted to instead send the string as utf-8 bytes.
    // Just tell the socket object...
    Set ComStringCharset Of hoSocket To "utf-8"

    // Send the string as utf-8 bytes.
    Get pvComObject of hoSbXml to vSbXml
    Get ComSendSb Of hoSocket vSbXml To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoSocket To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // If our XML file was utf-8, then just tell the StringBuilder that we're reading utf-8.
    // Once the text is properly contained in the StringBuilder, we can send the contents in any other charset (windows-1252, utf-16, utf-8, etc.) 
    // as long as it make sense (i.e. we obviously can't send Japanese text using a single-byte charset such as Windows-1252).
    Get ComLoadFile Of hoSbXml "qa_data/xml/myUtf8.xml" "utf-8" To iSuccess
    If (iSuccess <> True) Begin
        Showln "Failed to load utf-8 XML file.."
        Procedure_Return
    End

    // Send as utf-16
    Set ComStringCharset Of hoSocket To "utf-16"

    // Send the string as utf-16 bytes.
    Get pvComObject of hoSbXml to vSbXml
    Get ComSendSb Of hoSocket vSbXml To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoSocket To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // ...
    // ...


End_Procedure