OB Class

OB Class ( object ) : any

Parameter	Type		Description
object	Object	→	Object whose class is to be returned
Function result	Null, Object	←	Class of object

Description

The OB Class command returns the class of the object passed in parameter. In 4D, all objects inherit from the Object class. If object is not an existing object, OB Class returns null.

Example

You created the Polygon class:

  //Class: Polygon
 
 Class constructor
 var $1;$2 : Integer
 This.area:=$1*$2

Then, in a method, you can write:

 var $poly;$class : Object
 $poly:=cs.Polygon.new(4;3)
 
 $class:=OB Class($poly)
  //$class contains Class: Polygon

See also

OB Instance of

Properties

Command number	1730
Thread safe	✓