Used Function |  |
Determine whether a database file is open.
Namespace: XSharp.RT
Assembly: XSharp.RT (in XSharp.RT.dll) Version: 2.21
SyntaxRequest Example
View Source
TRUE if there is a database file in use; otherwise, FALSE.
Return Value
Type: LogicTRUE if there is a database file in use; otherwise, FALSE.
Remarks
Used() determines whether there is a database file in use in a work area.
By default, this function operates on the currently selected work area.
It can be made to operate on an unselected work area by specifying it within an aliased expression or by calling the overload that accepts a workarea parameter (a workarea number or alias ).
By default, this function operates on the currently selected work area.
It can be made to operate on an unselected work area by specifying it within an aliased expression or by calling the overload that accepts a workarea parameter (a workarea number or alias ).
Examples
This example determines whether a database file is in use in the current work area:
X#
1USE customer NEW 2QOut(Used()) // Result: TRUE 3CLOSE 4QOut(Used()) // Result: FALSE
See Also