Google Translator

// changes in class GoogleTranslator

        public enum Mode
        {
...
// add
            EnglishToThai,
            ThaiToEnglish
        }



        protected override string getPostData()
        {
...
// add
                case Mode.EnglishToThai:
                    strPostData += "en|th";
                    break;
                case Mode.ThaiToEnglish:
                    strPostData += "th|en";
                    break;


//changes in class WebResourceProvider
        void getContent
          (string url)
        {
...
// change
               // ASCIIEncoding asciiEncoding = new ASCIIEncoding();
               // byte[] postData = asciiEncoding.GetBytes(strPostData);
// to
               UTF8Encoding utf8Encoding = new UTF8Encoding();
               byte[] postData = utf8Encoding.GetBytes(strPostData);

// change
	// StreamReader streamReader = new StreamReader (stream);

// to      StreamReader defaults to UTF-8 encoding (change or don't change, your call)
	StreamReader streamReader = new StreamReader(stream, System.Text.Encoding.UTF8);



//changes in class GoogleTranslatorForm

// Add a radio button to the form for your translation. In this case I called it 'radioThai'.
// Change the font in editTranslation to Tahoma (has Unicode Thai). 
// You will need to change this font to support your language. If not you'll end up with squares
// if the font does not support your language.

        private void OnTranslate(object sender, System.EventArgs e)
        {
... 
// add      
                 else
                        {
                            if (radioThai.Checked)
                            {
                                mode = GoogleTranslator.Mode.EnglishToThai;
                                reverseMode = GoogleTranslator.Mode.ThaiToEnglish;
                            }
                        }