Autodesk.Revit.UI.IExternalApplication is an interface in the Autodesk Revit API that provides a way for developers to create external applications that can extend the functionality of Revit.
As an interface, Autodesk.Revit.UI.IExternalApplication defines a set of methods and properties that external applications must implement. This includes:
Developers can create external applications by implementing the Autodesk.Revit.UI.IExternalApplication interface in their code. This involves providing implementations for the OnStartup, OnShutdown, and GetName methods.
Once an external application is created, it can be loaded into Revit by placing the compiled .dll file in the appropriate location on the user's computer. Once loaded, the application can be accessed from within Revit by navigating to the Add-Ins tab and selecting the appropriate button or menu item.
Autodesk.Revit.UI.IExternalApplication provides developers with a way to extend the functionality of Revit by creating external applications. By implementing the interface's methods and properties, developers can customize Revit to meet their specific needs and requirements. With the ability to add custom tools, workflows, and functionality, Autodesk.Revit.UI.IExternalApplication offers a powerful way to enhance Revit's capabilities.