[news.eclipse.platform] How to create an editor?

[peterM <regestrer@xxxxxxxxx>]

I want to know what do i need to do in order to create my own editor. Here is what i know so far: 
I need an extension point org.eclipse.ui.editors -> specify my own class which at the very least extends the IEditorPart. I need to define an Editor input. Where should I do that? How should i do that. How do i tell my editor -> here is the bytes of this file use this to display. I don't understand how the editor works. If anyone can help and explain 
Thanks,
Peter