Release 10.1A: OpenEdge Development:
Progress Dynamics Managers API Reference

IsA

This function checks whether a class inherits from a particular class, based on the class name.

Location: ry\app\ryrepmngrp.i

Parameters:

INPUT pdInstanceId AS DECIMAL INPUT pcClassName AS CHARACTER Returns: LOGICAL

Notes: It returns the null value if the object cannot be found in the cache. An object’s class cannot be determined if the object is not in the cache.

Examples: See the doViewer procedure in ry\app\ryuimsrvrp.p.