Share Email Facebook Twitter LinkedIn UIControlledApplication.IsViewerModeActive Property Determines if Revit session is in Viewer mode. Namespace: Autodesk.Revit.UIAssembly: RevitAPIUI (in RevitAPIUI.dll) Version: 25.3.0.0 (25.3.0.0) Syntax C# public bool IsViewerModeActive { get; }Property ValueBoolean See AlsoReferenceUIControlledApplication ClassAutodesk.Revit.UI Namespace