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

        public override int GetGuidProperty(int propid, out Guid guid)
        {
            guid = Guid.Empty;
            if ((__VSHPROPID)propid == __VSHPROPID.VSHPROPID_ProjectIDGuid)
            {
                guid = this.ProjectIDGuid;
            }
            else if (propid == (int)__VSHPROPID.VSHPROPID_CmdUIGuid)
            {
                guid = this.ProjectGuid;
            }
            else if ((__VSHPROPID2)propid == __VSHPROPID2.VSHPROPID_ProjectDesignerEditor && this.SupportsProjectDesigner)
            {
                guid = this.ProjectDesignerEditor;
            }
            else
            {
                base.GetGuidProperty(propid, out guid);
            }

            if (guid.CompareTo(Guid.Empty) == 0)
            {
                return VSConstants.DISP_E_MEMBERNOTFOUND;
            }

            return VSConstants.S_OK;
        }