Asynchronous HTTP Upload

Demonstrates how to do an HTTP upload asynchronously in a background thread. The Chilkat Upload software is freeware and may be used in both commercial and non-commercial applications and websites.

The C# code to receive the upload at http://www.chilkatsoft.com/receiveUpload.aspx may be seen here: C# ASP.NET Code to Receive Upload

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// Needs #include <CkUpload.h>

    CkString strOut;

    CkUpload upload;

    //  Specify the page (ASP, ASP.NET, Perl, Python, Ruby, CGI, etc)
    //  that will process the HTTP Upload.
    upload.put_Hostname("www.chilkatsoft.com");
    upload.put_Path("/receiveUpload.aspx");

    //  Add one or more files to be uploaded.
    upload.AddFileReference("file1","dude.gif");
    upload.AddFileReference("file2","pigs.xml");
    upload.AddFileReference("file3","sample.doc");

    //  Begin the HTTP upload in a background thread:
    bool success;
    success = upload.BeginUpload();
    if (success != true) {
        strOut.append(upload.lastErrorText());
        strOut.append("\r\n");
    }
    else {
        strOut.append("Files uploaded!\r\n");
    }

    //  Wait for the upload to finish.
    //  Print the progress as we wait...
    while ((upload.get_UploadInProgress() == 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:
        strOut.appendInt(upload.get_PercentUploaded());
        strOut.append("% ");
        strOut.appendInt(upload.get_NumBytesSent());
        strOut.append("/");
        strOut.appendInt(upload.get_TotalUploadSize());
        strOut.append("\r\n");

        //  Sleep 2/10ths of a second.
        upload.SleepMs(200);

    }

    //  Did the upload succeed?
    if (upload.get_UploadSuccess() == true) {
        strOut.append("Files uploaded!\r\n");
    }
    else {
        strOut.append(upload.lastErrorText());
        strOut.append("\r\n");
    }


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());