Result = FinishHTTP(HttpConnection)Description
Free the resources associated to the specified asynchronous download, started either with ReceiveHTTPFile() or ReceiveHTTPMemory().
HttpConnection The HTTP connection to finish.
If the download has been successful, it returns the number of bytes written to disk for a download start with ReceiveHTTPFile(), or the memory buffer address for a download started with ReceiveHTTPMemory().
The value #PB_HTTP_Aborted will be returned by HTTPProgress().