"Ulrich Czekalla" <[EMAIL PROTECTED]> wrote: > + if (control->hwnd) > + { > + WNDPROC oldproc = (WNDPROC) SetWindowLongPtrW(control->hwnd, > GWLP_WNDPROC, > + (LONG)MSIRadioGroup_WndProc);
Then it's better to cast to LONG_PTR instead of LONG. -- Dmitry.