Re: [PATCH 0/2] MR8790: comctl32/treeview: Return from TREEVIEW_LButtonDown when the treeview handle is invalid.

[Zhiyi Zhang (＠zhiyi)]

Zhiyi Zhang (@zhiyi) commented about dlls/comctl32/tests/treeview.c:
> +    while (GetMessageA(&msg, 0, 0, 0))
> +    {
> +        TranslateMessage(&msg);
> +        DispatchMessageA(&msg);
> +        if((msg.hwnd == treeview) && (msg.message == WM_LBUTTONDOWN))
> +            break;
> +    }
> +
> +    flush_events();
> +    ok_sequence(sequences, TREEVIEW_SEQ_INDEX, test_click_delete_seq, "treeview click and destroy sequence", TRUE);
> +
> +    flush_sequences(sequences, NUM_MSG_SEQUENCES);
> +    SetCursorPos(orig_pos.x, orig_pos.y);
> +    g_click_delete_test = 0;
> +
> +    if (!IsWindow(treeview))
> Can this happen?

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https://gitlab.winehq.org/wine/wine/-/merge_requests/8790#note_113583