Microsoft.VisualStudio.Project.ProjectNode.GetNestedProjectForHierarchy C# (CSharp) Method

        internal NestedProjectNode GetNestedProjectForHierarchy(IVsHierarchy hierarchy)
        {
            IVsProject3 project = hierarchy as IVsProject3;

            if (project != null)
            {
                string mkDocument = String.Empty;
                ErrorHandler.ThrowOnFailure(project.GetMkDocument(VSConstants.VSITEMID_ROOT, out mkDocument));

                if (!String.IsNullOrEmpty(mkDocument))
                {
                    HierarchyNode node = this.FindChild(mkDocument);

                    return node as NestedProjectNode;
                }
            }

            return null;
        }