Question: I am developing an App where I would need to perform HTTP Request using C#.
Had in been PHP, I could use the HttpRequest class. Which class or group of class is best matched for the PHP HttpRequest by which I could make GET and POST Request.

Answer: 
You can use [QTextEdit](http://doc.qt.nokia.com/4.6/qtextedit.html) and [QSyntaxHighlighter](http://doc.qt.nokia.com/4.6/qsyntaxhighlighter.html) together to get text editing features with syntax highlighting. See Qt's richtext\syntaxhighlighter example.

QtScript is based on the ECMAScript scripting language as is JavaScript, so I guess you could use JavaScript syntax highlighting without any big problems. So if you don't want to code the new QSyntaxHighlighter from scratch, maybe you could use this [JavaScript editing widget](http://ariya.blogspot.com/2010/09/minimalistic-javascript-editing-widget.html).
Try [stealing the official one](http://svn://labs.trolltech.com/svn/qtscript/qtscriptdebug), you want src/editor/scripthighlighter.h and src/editor/scripthighlighter.cpp