BlockBegin Class

Description

This .NET class wraps the AcDbBlockBegin ObjectARX class.

The BlockBegin class represents the block header portion of a block definition within AutoCAD (that is, group codes 2, 3, 10, 20, 30, and 70). Objects of this class are created and handled automatically by AutoCAD for each BlockTableRecord.

Applications do not need to create objects of this class nor can they add or remove them from databases. Applications are free to add or manipulate xdata on objects of this class as well as work with extension dictionaries for objects of this class.

Class Hierarchy

Autodesk.AutoCAD.DatabaseServices.DBObject
    Autodesk.AutoCAD.DatabaseServices.Entity
        Autodesk.AutoCAD.DatabaseServices.BlockBegin

Visual Basic

Public sealed Class BlockBegin
Inherits Entity

public sealed class BlockBegin : Entity;

Notes

Warning: Do not derive from this class. Attempting to do so will cause your application to halt AutoCAD.