The Application object
is at the root of the object hierarchy and it provides access to
the main window of AutoCAD. For example, the following line of
code updates the application:
VB.NET
Autodesk.AutoCAD.ApplicationServices.Application.UpdateScreen()
C#
Autodesk.AutoCAD.ApplicationServices.Application.UpdateScreen();
VBA/ActiveX Code Reference
ThisDrawing.Application.Update
