[PATCH 2/4] comctl32/listbox: Implement LBS_NODATA for multi-selection listboxes

Huw Davies huw at codeweavers.com
Mon Feb 25 08:00:39 CST 2019

On Mon, Feb 25, 2019 at 03:39:14PM +0200, Gabriel Iv─âncescu wrote:
> Ok, I have a question now: can I use a small helper that uses the cast
> instead of a union? Something like:
> static inline BYTE *get_nodata_items(const LB_DESCR *descr)
> {
>     return (BYTE*)descr->items;
> }
> And use it where needed? It would require less changes to the code and, IMO,
> keep it cleaner (other than the one helper above). Such helpers are frequent
> in other parts of the code (mostly dealing with COM stuff).

No.  That's just hiding the hack.  The issue is that regular storage
and no date storage should have an equal footing.  With a union it's
clear.  The only places you should need to change of the helpers and
most of those don't do anything in the no data case, so it shouldn't
be too bad.

> On a side note, I'll also rewrite FindString since it's a mess and would
> still be a mess even if I replaced it with the helpers only.

Ok, good.


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