<H[andlers]|V[ariables]|X[ternals]> defines the desired X-Ref mode: by handlers, by variables or by externals.
<ListAll> is a boolean. When TRUE, all subitems are listed for each found entry. Default is FALSE.
<ListNb> is a boolean, used only if <ListAll> = TRUE. When TRUE, all line numbers are listed along with each subitem. Default is FALSE.
Using "!", "?" and "=" as first parameter will return an online help (resp. copyright, syntax and output).
USING
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The XFCN returns a list of found entries, depending of the choosen X-Ref mode. Each entry is followed by its type, which can be [HN] (handler), [LV] (local variable, [GV] (global variable), [XC] (external command) or [XF] (external function).
Free for non-commercial use. Use in commercial software subjected to prior acknowledgement and licensing from the author, reachable at the following network addresses: