void Visibility_BeforeQueryStatus(object sender, EventArgs e)
 {
     if (sender is OleMenuCommand)
     {
         IVsSolution solution    = (IVsSolution)GetGlobalService(typeof(IVsSolution));
         var         allProjects = StartDebugHelper.GetProjects(solution);
         (sender as OleMenuCommand).Enabled = allProjects.Count() == 0;
     }
 }
 /// <summary>
 /// Initializes the singleton instance of the command.
 /// </summary>
 /// <param name="package">Owner package, not null.</param>
 public static void Initialize(Package package)
 {
     Instance = new StartDebugHelper(package);
 }
 /// <summary>
 /// Initialization of the package; this method is called right after the package is sited, so this is the place
 /// where you can put all the initialization code that rely on services provided by VisualStudio.
 /// </summary>
 protected override void Initialize()
 {
     StartDebugHelper.Initialize(this);
     base.Initialize();
 }