http - c# Downloading PNG file from website and sending cookies in Request? -

hello trying download .png image website, need headers sent in request download image. end goal image loaded directly stream, rather saving file.

this code image's html with:

public string request(string type, string page, string data = "", string referer = "") {     using(tcpclient tcp = new tcpclient(this.sitename, this.port))     {         byte[] headers = encoding.default.getbytes(this.makeheaders(type, page, referer, data));         using (networkstream ns = tcp.getstream())         {             ns.write(headers, 0, headers.length);             using (streamreader sr = new streamreader(ns, encoding.default))             {                 string html = sr.readtoend();                 return html;             }         }     }  } 

the headers send this:

get /image.php http/1.1 host: greymatter.com user-agent: mozilla/5.0 (windows nt 6.1; wow64; rv:22.0) gecko/20100101 firefox/22.0 accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 accept-language: en-us,en;q=0.5 connection: close cache-control: max-age=0 cookie: phpsessid=s0v17eafosj5ctb5v6keu3lh57; __cfduid=d10aef4fcfd052e1f59fba9832cedf4491374611636 

the png file save locally starts with:

67f ‰png 

the saved png file corrupt - can't viewed! don't understand why happening?

the request of php document. individual assets of web site downloaded separately. single tcp request may not cover intending do. i'd recommend fiddler looking @ calls made requesting web page.

also i'd @ using image.fromstream() convert stream png. (just pref. working byte arrays , streams data has been particularly error prone me.)

its used this.

byte[] imagedata = myrequestfunction(url); //myrequestfunction function here memorystream stream = new memorystream(imagedata); image img = image.fromstream(stream); stream.close();

additionally web requests made doing. example might help.
how read picture url , show on page