PVALID  PVALID Validate Property Name


Usage
 
 This function checks to see if the given string is a valid
 property name for an object of the given type.  The syntax
 for its use is
 
   b = pvalid(type,propertyname)
 
 where string is a string that contains the name of a 
  valid graphics object type, and
 propertyname is a string that contains the name of the
 property to test for.
 