This function places the value of table object attribute attrName for table object toid in attrval.

If toid or attrName is invalid, the function returns a zero (0). If the function executes successfully, it returns a one (1).

The toid parameter is the table object ID of the table object whose attribute value is to be retrieved. The attrName parameter is a string for the name of the attribute. Note that names are case insensitive. The attrval parameter is a variable in which the attribute value is returned. Some values are numbers, some are strings. String values are case insensitive.