DosQueryFSAttach Parameter - ulOrdinal

ulOrdinal (ULONG) - input

An index into the list of character or pseudocharacter devices, or the set of drives.

ulOrdinal always starts at 1. The ordinal position of an item in a list has no significance. ulOrdinal is used only to step through the list. The mapping from ulOrdinal to the item is volatile, and may change from one call to DosQueryFSAttach to the next. ulOrdinal is ignored if level 1 is specified for ulFSAInfoLevel.

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