For Function

 FUNCTION For(
	nIndexNumber,
	uArea
) AS STRING CLIPPER

[ClipperCallingConventionAttribute(new string[] { ... })]
public static string For(
	Usual nIndexNumber = default,
	Usual uArea = default
)

Parameters

nIndexNumber (Optional)

Type: Usual
Specifies the index file or tag for which the filter expression is returned. For( ) returns filter expressions in the following order as nIndexNumber increases from 1 to the total number of open single-entry files and structural compound and independent compound index tags:
1. Filter expressions from single-entry index files (if any are open) are returned first. The order the single-entry index files are included in Use or Set Index determines the order in which the filter expressions are returned.
2. Filter expressions for each tag in the structural compound index (if one is present) are returned next. The filter expressions are returned from the tags in the order the tags are created in the structural index.
3. Filter expressions for each tag in any open independent compound indexes are returned last. The filter expressions are returned from the tags in the order in which the tags are created in the independent compound indexes.
The empty string is returned if an index or index tag is created without a For clause or if nIndexNumber is greater than the total number of open single-entry files and structural compound and independent compound index tags.

uArea (Optional)

Type: Usual
Specifies the work area of the table for which For( ) returns the index filter expressions. For( ) returns the empty string if a table isn't open in the work area you specify.
Or
Specifies the alias of the table for which For( ) returns the index filter expressions. X# generates an error message if you specify a table alias that doesn't exist.

Return Value

Reference