Autodesk.Revit.UI.IExternalEventHandler

Autodesk.Revit.UI.IExternalEventHandler is an interface in the Autodesk Revit API used to handle external events triggered by the user interface. It is commonly used in Revit plug-in development to perform certain tasks or operations in response to user actions.

Properties

This interface has no properties.

Methods

Execute(UIApplication)

This method is called by Revit when an external event is triggered. It takes an UIApplication parameter, which gives access to the Revit application and its various components. Any operations or tasks associated with the event should be implemented in this method.

GetName()

This method returns the name of the event handler. It is commonly used for debugging purposes or to provide a more user-friendly name for the handler.

Example Implementation

Here is an example implementation of the IExternalEventHandler interface:

public class MyExternalEventHandler : IExternalEventHandler
{
    public string GetName()
    {
        return "My External Event Handler";
    }

    public void Execute(UIApplication uiApp)
    {
        // Perform some task or operation here...
    }
}

In this example, a custom external event handler named MyExternalEventHandler has been created. The GetName method returns the name of the handler, and the Execute method contains the code to perform the desired task or operation.

Conclusion

Autodesk.Revit.UI.IExternalEventHandler is a useful interface in the Revit API for handling external events triggered by the user interface. By implementing this interface, developers can respond to user actions and perform tasks or operations programmatically.