Re: C# and VC6 Web Services File Upload

I'm cross posting, sorry, but this pertains to both sides..

I have a Web Services written in C# and a client written in VC6. I've
never uploaded files through web services so forgive my ignorance in this
matter, but I'm trying to understand how I can do this from the C++
client.

The C# code works for HTTP Form Posts, but not really what I'm looking
for.. This should be for applications to upload files too.. The code is
as follows:
-----------------------------------------------------------------
[WebMethod]
public bool UploadFileCollection()
{
 try
 {
   //HTTP Context to get access to the submitted data
   HttpContext postedContext = HttpContext.Current;

   //File Collection that was submitted with posted data
   HttpFileCollection Files = postedContext.Request.Files;

   //Make sure a file was posted
   //This works for HTTP Form Posts, need to understand how to make this
work for C++ posts
   string fileName = (string)postedContext.Request.Form["fileName"];

   if (Files.Count == 1 && Files[0].ContentLength > 1 && fileName != null
&& fileName != "")
   {
     //The byte array we'll use to write the file with
     byte[] binaryWriteArray = new
     byte[Files[0].InputStream.Length];
     //Read in the file from the InputStream
     Files[0].InputStream.Read(binaryWriteArray, 0,
     (int)Files[0].InputStream.Length);
     //Open the file stream
     FileStream objfilestream = new FileStream("c:\\" + fileName,
FileMode.Create, FileAccess.ReadWrite);
     //Write the file and close it
     objfilestream.Write(binaryWriteArray, 0,
     binaryWriteArray.Length);
     objfilestream.Close();
     return true;
   }
   else
   {
     return false;
   }
 }
 catch (Exception ex1)
 {
   throw new Exception("Problem uploading file: " + ex1.Message);
 }
}

-----------------------------------------------------------------

I have VC6 client that is to upload a file to the C# Web Services
Interface using WinHttp..
WinHttpOpen
WinHttpConnect
WinHttpOpenRequest
WinHttpSetOption
WinHttpAddRequestHeaders
WinHttpWriteData //header
WinHttpWriteData //binary file in data chunks
WinHttpWriteData //footer
WinHttpReceiveResponse
WinHttpQueryHeaders
WinHttpQueryDataAvailable
WinHttpReadData
WinHttpCloseHandle

I've never written anything in C++ to talk to Web Services before and I
know this code work for file uploads to IIS via ASPUpload object on the
server. I may be way off, but my searching is leading me no where.