FileIsOpen allows to test if a file is already open or not.
SYNTAX
FileIsOpen <File path>
PARAMETERS
<File path> can be a single name or whole pathname. If just a single name is supplied, the file is assumed to be in the same folder than the current stack.
Using "!", "?" or "=" as first parameter will return an online help (resp. copyright, syntax and output).
USING
The XFCN return "true" is the file is open, "false" if not.
Free for non-commercial use. Use in commercial software subjected to prior acknowledgement and licensing from the author, reachable at the following network addresses: