[PATCH v3 1/6] shell32/autocomplete: Fill and display the auto-suggest listbox in a separate function

[Nikolay Sivov]

On 10/25/2018 09:04 PM, Gabriel Ivăncescu wrote:

> +    WCHAR *text;
> +    UINT size, len = SendMessageW(hwnd, WM_GETTEXTLENGTH, 0, 0);
> +
> +    if (flag != autoappend_flag_displayempty && len == 0)
> +    {
> +        if (ac->options & ACO_AUTOSUGGEST)
>               hide_listbox(ac, ac->hwndListBox);
> +        return;
>       }
> +
> +    size = len + 1;
> +    if (!(text = heap_alloc(size * sizeof(WCHAR))))
> +        return;
> +    len = SendMessageW(hwnd, WM_GETTEXT, size, (LPARAM)text);
> +    if (len + 1 != size)
> +        text = heap_realloc(text, (len + 1) * sizeof(WCHAR));
Was this tested with some inconsistent WM_GETTEXT implementation? Why do 
you need to realloc?