Name

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      OBJ_ISA_VALID

Purpose

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      The purpose of this utility routine is to check to be
      sure the object argument is valid and belongs to the
      specified class.

Author

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      FANNING SOFTWARE CONSULTING
      1645 Sheely Drive
      Fort Collins, CO 80526 USA
      Phone: 970-221-0438
      E-mail: davidf@dfanning.com

Category

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      Programming.

Calling Sequence

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      check = OBJ_ISA_VALID(object, classname)

Arguments

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      object - The object reference to check (object reference).
      classname - The object class name to check (string).

Return Value

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      check - Returns 1 if the object is valid and a member of the
          specified class. Returns 0 otherwise.

Modification History

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      Written by: David Burridge, 12 June 2002.
      Added OBJARR handling: David Burridge, 23rd January 2003.