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FILESFREE()
Specifies the number of files you can open
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Syntax
FILESFREE() --> nFreeHandles
Returns
FILESFREE() returns the number of available handles.
Description
This function returns the number of available handles that correspond to
the number of files you can open. This enables you to avoid DOS error
4.
Note
. Immediately after you start a Clipper application, a value
-- smaller than that of FILESMAX() -- is returned. This happens
because the operating system and application itself is already using
handles.
Examples
. Can I still open a file?
IF FILESFREE() > 0 // At least 1 handle free?
USE CUSTOMER // Open a file
ENDIF
. Be careful when you open multiple indexes at the same time!
IF FILESFREE() > 1 // At least 2 handles free?
USE CUSTOMER INDEX CUSTNR // Open 2 files
ENDIF
See Also: FILESMAX()
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