Function Used() Foundation
Determines whether a file is open in a work area.
Used([<nWorkArea> | <cAlias>]) --> lIsUsed
Used() returns the value .T. (true) if a file is open in the specified work area. Otherwise it returns .F. (false).
The database function Used() determines whether a file is open in a work area. If the function is used without the alias operator, it determines whether a file is open in the current work area.
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