Hi Shai,

This is a quick note to let you know that I am performing research on this
issue and will get back to you as soon as possible. I appreciate your
patience.

Thanks for your understanding.

Best regards,

Gary Chang
Microsoft Online Community Support
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Hi Shai,

I've only had limited exposure to those old Enterprise Template projects.
This took a bit of time to track down, but I think I've found a way to
retrieve the particular CommandBar you're looking for.

The guid:id pair for the context menu you are interested in is:

  {FE3BBBB7-72D5-11D2-9ACE-00C04F79A2A4}:1

From a VSIP package this would be pretty easy to manipulate. But  from an
addin, the problem is that the DTE automation model doesn't really allow
for retrieving the CommandBar with just this info. And the CommandBar name
is "Root", which isn't exactly unique. We could try to test a few of the
commands in the CommandBar's Controls collection to see if we retreive the
right CommandBar, but that seems rather ugly.

So you'll need to use IServiceProvider::QueryService on the DTE object to
retrieve the IVsProfferCommands service. Once you have this interface, you
can invoke it's FindCommandBar method to retrieve the context menu used by
Solution Explorer for ETP nodes.

The IServiceProvider is the COM version and not the .Net version, so you'll
need to either use the interop DLL's provided with the VSIP Extra's SDK. Or
define the interface yourself. I chose the latter, because using the
interop assemblies that ship with the VSIP Extras SDK, means deploying the
interop assemblies. With VS 2005 this isn't an issue as the interop
assemblies in question actually ship with VS 2005.

Anyway, below is a quick and dirty example of how you can use
IVsProfferCommands::FindCommandBar to retrieve and add a new menu item to
the ETP project node's context menu.

  // defines COM version of IServiceProvider, which is different from
  // the .NET version.
  [ ComImport, Guid("6D5140C1-7436-11CE-8034-00AA006009FA"),
InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)    ]
  public interface IOleServiceProvider
  {
     [PreserveSig]
     int QueryService([In]ref Guid guidService, [In]ref Guid riid, out
IntPtr ppvObject);
  }

  [GuidAttribute("76B3EBA5-07E4-4772-BD88-A8D6AC5BCBC4"),
ProgId("ETPMenu.Connect")]
  public class Connect : Object, Extensibility.IDTExtensibility2
  {
     public Connect()
     {
     }

     public void OnConnection(object application,
Extensibility.ext_ConnectMode connectMode, object addInInst, ref
System.Array custom)
     {
        applicationObject = (_DTE)application;
        addInInstance = (AddIn)addInInst;
        CommandBarButton btnTest;

        // retrieve IServiceProvider from DTE object
        IOleServiceProvider sp = (IOleServiceProvider)applicationObject;
        Guid guidSvc = new
Guid(typeof(IVsProfferCommands).GUID.ToString());
        IntPtr service;
        sp.QueryService(ref guidSvc, ref guidSvc, out service);
        IVsProfferCommands vsProfferCmds =
(IVsProfferCommands)Marshal.GetObjectForIUnknown(service);
        Marshal.Release(service);
           
        Guid guidCmdGroup = new
Guid("{FE3BBBB7-72D5-11D2-9ACE-00C04F79A2A4}");
        uint menuId = 1;
        CommandBar cmdBar =
(CommandBar)vsProfferCmds.FindCommandBar(IntPtr.Zero, ref guidCmdGroup,
menuId);
           
        try
        {
           Object objMissing = System.Reflection.Missing.Value;
           btnTest =
(CommandBarButton)cmdBar.Controls.Add(MsoControlType.msoControlButton,
objMissing, objMissing, objMissing, objMissing);
           btnTest.Caption = "ETP Test";
           btnTest.Click +=new
_CommandBarButtonEvents_ClickEventHandler(btnTest_Click);
        }
        catch(Exception e)
        {
           Debug.WriteLine(e.Message);
        }
}

One caveat is that I noticed the FindCommandBar call does fail if an ETP
project hasn't been loaded first. But if you're attempting to do this from
a project or solution extender, then I suspect this probably won't be an
issue.

Concerning the CatID problem, are you creating a solution or project
extender to add the additional properties to the ETP projects? Can you
provide some additional details as to what exactly you're trying to do
there. I'm didn't quite follow what you're trying to do with regards to
your CATID question.

Sincerely,
Ed Dore [MSFT]

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