ddIsId

ddIsId( 
b_objId 
) 
=> t / nil 

Description

Returns t if b_objId is an opaque ID known to the PI, and nil otherwise. Some dd functions will accept nil as the ID parameter, but this function returns nil if the argument is nil.

Arguments

b_objId

ID of the object.

Value Returned

t	b_objId is an opaque ID known to the PI.
nil	The argument is not a valid ddId.

Examples

ddIsId( myCell ) => t 

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