This .NET class wraps the AcGsDevice ObjectARX class. 

Device is an abstraction of a drawing surface and encapsulates the underlying device to which graphics are rendered. At present, an Device corresponds to a GUI display window. Eventually, other classes of devices will be supported (such as hardcopy, file [.bmp, .wmf, .dwf], and clipboard). 

An Device owns one or more Views and must manage damaged areas and delegate updates to these views. In addition, it responds to operating system notifications such as a change in window size forwarded from the underlying device by the graphics system (GS) client.

Autodesk.AutoCAD.GraphicsSystem.Device

Public Class Device
Inherits DisposableWrapper

public class Device : DisposableWrapper;

Drawable, View, Model, Configuration, Manager