This .NET class wraps the AcGiImageTexture ObjectARX class. It's an abstract class representing an image based texture.

Autodesk.AutoCAD.GraphicsInterface.MaterialTexture
    Autodesk.AutoCAD.GraphicsInterface.ImageTexture
        Autodesk.AutoCAD.GraphicsInterface.ImageFileTexture

Public Class ImageTexture
Inherits MaterialTexture

public class ImageTexture : MaterialTexture;