The ToolsAPI interface IOTAComponent declares two methods for getting property values: [delphi] IOTAComponent = interface(IUnknown) // [...] { Given the index or name, returns the property value. The untyped var must be large enough to hold the returned value. If the property is a descendant of TPersistent, the return value is a IOTAComponent. For properties … Continue reading Beware: IOTAComponent.GetPropValue needs 4 bytes for an enum →