🚀 go-pugleaf

"bar" <shaikakbar250281@yahoo.co.in> wrote in message 
news:47eb5fc5@newsgroups.borland.com...

> Even when the file is not present at the server or if any
> kind of exception raises. Still the file is creating with 0 bytes.

That is because you are not deleting the file if the download fails.

> How to avoid this, i  mean create the file only if the download success.

You have to create the file first before starting the download, or else you 
won't have anything to download into (unless you download to memory first, 
and then save it to file afterwards).  If the download fails, simply delete 
the file, for example:

    void TfrmMain::DownloadFile(String URL)
    {
        ErrFile = "";
        try
        {
            String FileName = "SomeFileName.bmp";

            try
            {
                std::auto_ptr<TFileStream> strm(new TFileStream(FileName, 
fmCreate));

                HTTP->Request->Pragma = "no-cache";
                HTTP->HandleRedirects = true;
                HTTP->ReadTimeout = 15000;

                HTTP->Get(URL, strm.get());
            }
            catch(const Exception &E)
            {
                if( !E.InheritsFrom(__classid(EFCreateError)) )
                    DeleteFile(FileName);
                throw;
            }
        }
        catch(const Exception &E)
        {
            ErrFile = E.Message;
        }
    }


Gambit