O2 Script - VisualStudio API - create top menu and hook build events

gistfile1.cs

var visualStudio = new VisualStudio_2010();

//add a button called "My Custom Code" to the "Tools" Menu (at bottom), which when clicked will
//invoke the myCustomCode function which will show a WinForms MessageBox
Action myCustomCode = ()=>{
				"This is custom code executing".messageBox();
			   };

var toolsMenu = visualStudio.dte().get_Menu("Tools");

toolsMenu.add_Menu_Button("My Custom Code", myCustomCode);

//Set up a callbacks on build begin and build OK
VisualStudio_2010.On_BuildBegin.add(
	()=>{
		visualStudio.errorList().clear()
					.add_Message("There was a build");
	    });
		
VisualStudio_2010.On_ProjectBuild_OK.add(
	(projectFile)=> {
			     visualStudio.errorList().add_Message("This project compliled OK: {0}".format(projectFile));
			});
		
return visualStudio.dte();