Share Email Facebook Twitter LinkedIn ContextualHelp.Launch Method Launches and displays the help topic specified by the contents of this ContextualHelp object.Namespace: Autodesk.Revit.UIAssembly: RevitAPIUI (in RevitAPIUI.dll) Version: 25.3.0.0 (25.3.0.0) Syntax C# public void Launch() See AlsoReferenceContextualHelp ClassAutodesk.Revit.UI Namespace