An application sends an LB_SETLOCALE message to set the current locale of the list box. You can use the locale to determine the correct sorting order of displayed text (for list boxes with the LBS_SORT style) and of text added by the LB_ADDSTRING message.
LB_SETLOCALE
wParam = (WPARAM) wLocaleID; // locale identifier
lParam = 0; // not used; must be zero
Parameters
wLocaleID
Value of wParam. Specifies the locale identifier that the list box will use for sorting when adding text.
Return Values
The return value is the previous locale identifier. If the wLocaleID parameter specifies a locale that is not installed on the system, the return value is LB_ERR and the current list box locale is not changed.
Remarks
Use the MAKELCID macro to construct a locale identifier.
See Also