Re: [PATCH v3 0/2] MR8258: comctl32/treeview: Return from TREEVIEW_LButtonDown when the treeview handle is invalid.

[Zhiyi Zhang (＠zhiyi)]

Zhiyi Zhang (@zhiyi) commented about dlls/comctl32/treeview.c:
> }
>      }
>
> -    if (do_track && TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
> +    if ((do_track && TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK)) || !IsWindow(hwnd))

Calling `SetFocus(hwnd)` after the window is destroyed is probably wrong. It seems better to just return without doing anything when the window is destroyed.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/8258#note_106677