Microsoft.VisualStudio.Project.ProjectConfig.GetCfgPropertyPages C# (CSharp) Method

        private void GetCfgPropertyPages(CAUUID[] pages)
        {
            // We do not check whether the supportsProjectDesigner is set to true on the ProjectNode.
            // We rely that the caller knows what to call on us.
            if (pages == null)
            {
                throw new ArgumentNullException("pages");
            }

            if (pages.Length == 0)
            {
                throw new ArgumentException(SR.GetString(SR.InvalidParameter, CultureInfo.CurrentUICulture), "pages");
            }

            // Retrive the list of guids from hierarchy properties.
            // Because a flavor could modify that list we must make sure we are calling the outer most implementation of IVsHierarchy
            string guidsList = String.Empty;
            IVsHierarchy hierarchy = HierarchyNode.GetOuterHierarchy(this.project);
            object variant = null;
            ErrorHandler.ThrowOnFailure(hierarchy.GetProperty(VSConstants.VSITEMID_ROOT, (int)__VSHPROPID2.VSHPROPID_CfgPropertyPagesCLSIDList, out variant), new int[] { VSConstants.DISP_E_MEMBERNOTFOUND, VSConstants.E_NOTIMPL });
            guidsList = (string)variant;

            Guid[] guids = Utilities.GuidsArrayFromSemicolonDelimitedStringOfGuids(guidsList);
            if (guids == null || guids.Length == 0)
            {
                pages[0] = new CAUUID();
                pages[0].cElems = 0;
            }
            else
            {
                pages[0] = PackageUtilities.CreateCAUUIDFromGuidArray(guids);
            }
        }