How to re-write parts of the Visual Studio Text Editor?

I love visual studio, but the VC++ text editor can be pretty annoying, especially when it comes to determining what should be collapsible. How would I go about开发者_如何学JAVA writing a Visual Studio extension that overrides parts of the default behavior of the text editor?

You'll get the fastest return from trying to find an extension someone else wrote, so start at http://www.visualstudiogallery.com. If nothing there comes close to what you want, http://msdn.microsoft.com/en-ca/vstudio/vextend.aspx is a dev centre to help you get started extending Visual Studio.