编写Visual Studio 2010插件时，希望在代码编辑器中显示Resharper这样的工具箱

I would like to write a plugin for Visual Studio 2010 but in fact I face some problems. What I want to do seems easy, I would like that a little toolbox appears when selecting the text in code editor like in Resharper (little pen with menu that helps in refactoring) or like here:I would like to write a plugin for Visual Studi