(DataFlex) Asynchronous HTTP Upload

Demonstrates how to do an HTTP upload asynchronously in a background thread.

A server-side C# example showing how to receive an upload is located at C# ASP.NET Code to Receive Upload

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

Use ChilkatAx-win32.pkg

Procedure Test
    Handle hoUpload
    Boolean iSuccess
    String sTemp1
    Integer iTemp1
    Integer iTemp2
    Integer iTemp3
    Boolean bTemp1

    Get Create (RefClass(cComChilkatUpload)) To hoUpload
    If (Not(IsComObjectCreated(hoUpload))) Begin
        Send CreateComObject of hoUpload
    End

    // Specify the page (ASP, ASP.NET, Perl, Python, Ruby, CGI, etc)
    // that will process the HTTP Upload.
    Set ComHostname Of hoUpload To "www.mywebserver.com"
    Set ComPath Of hoUpload To "/receiveUpload.aspx"

    // Add one or more files to be uploaded.
    Send ComAddFileReference To hoUpload "file1" "dude.gif"
    Send ComAddFileReference To hoUpload "file2" "pigs.xml"
    Send ComAddFileReference To hoUpload "file3" "sample.doc"

    // Begin the HTTP upload in a background thread:
    Get ComBeginUpload Of hoUpload To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoUpload To sTemp1
        Showln sTemp1
    End
    Else Begin
        Showln "Upload started..."
    End

    // Wait for the upload to finish.
    // Print the progress as we wait...
    While ((ComUploadInProgress(hoUpload)) = True)
        // We can abort the upload at any point by calling:
        // upload.AbortUpload();

        // Display the percentage complete and the number of bytes uploaded so far..
        // The total upload size will become set after the upload begins:
        Get ComPercentUploaded Of hoUpload To iTemp1
        Get ComNumBytesSent Of hoUpload To iTemp2
        Get ComTotalUploadSize Of hoUpload To iTemp3
        Showln iTemp1 "% " iTemp2 "/" iTemp3

        // Sleep 2/10ths of a second.
        Send ComSleepMs To hoUpload 200

    Loop

    // Did the upload succeed?
    Get ComUploadSuccess Of hoUpload To bTemp1
    If (bTemp1 = True) Begin
        Showln "Files uploaded!"
    End
    Else Begin
        Get ComLastErrorText Of hoUpload To sTemp1
        Showln sTemp1
    End



End_Procedure