Re: [PATCH v5 0/2] MR8258: comctl32/treeview: Return from TREEVIEW_LButtonDown when the treeview handle is invalid.

[Nikolay Sivov (＠nsivov)]

On Tue Jun 24 11:47:01 2025 +0000, Zhiyi Zhang wrote:
> The MR looks fine. I wonder if we should apply the same treatment to
> other notification codes as well.

I don't think we need this IsWindow check duplicated everywhere it's needed. It needs to happen after every callback message, so it's better to have it in existing helpers somewhere.