Description Identifies if a specific entity in the FRED document's tree is a lens element or not.
Syntax isL = IsLens ( n )
Parameters isL (Boolean) True if the item is a lens, False otherwise.
n As Long Node number of the entity.
Remarks This function identifies if a specific entity in the FRED document's tree is a lens or not. If there is a problem, the function sets an error and returns False.
See Also Examples
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