Invoking external tool from the Visual Commander

visual_commander_cpplint_py.cs

using EnvDTE;
using EnvDTE80;

public class E : VisualCommanderExt.IExtension
{
        public void SetSite(EnvDTE80.DTE2 DTE_, Microsoft.VisualStudio.Shell.Package package)
        {
                DTE = DTE_;
                events = DTE.Events;
                documentEvents = events.DocumentEvents;
                documentEvents.DocumentSaved += OnDocumentSaved;		
        }

        public void Close()
        {
                documentEvents.DocumentSaved -= OnDocumentSaved;
        }

        private void OnDocumentSaved(EnvDTE.Document doc)
        {
                if(doc.Language == "C/C++")
                        DTE.ExecuteCommand("Tools.ExternalCommand1");
        }

        private EnvDTE80.DTE2 DTE;
        private EnvDTE.Events events;
        private EnvDTE.DocumentEvents documentEvents;
}

It will be great to add in OnDocumentSaved method this lines

var currentDocument = DTE.ActiveDocument;
currentDocument.Activate();

for focusing back on document instead of output window (I'm too lazy to push F7 after my every Ctrl+S)