Function LangFlowDirection

localization.c:81–93

* Return value: 0 for LTR, 1 for RTL, 2 or 3 for vertical */

 * Return value: 0 for LTR, 1 for RTL, 2 or 3 for vertical
 */
int
LangFlowDirection(void)
{
    int res = 0; /* LTR by default */
    wchar_t lcname[LOCALE_NAME_MAX_LENGTH];
    wchar_t data[2];
    if (LCIDToLocaleName(MAKELCID(GetGUILanguage(), SORT_DEFAULT), lcname, _countof(lcname), 0) != 0
        && GetLocaleInfoEx(lcname, LOCALE_IREADINGLAYOUT, data, 2) != 0)
    {
        res = _wtoi(data);
    }
    return res;
}

LANGID
GetGUILanguage(void)