rem: (unsigned char **)mwmhints)!=Success)
add: (unsigned char **)&data)!=Success)
context: PropGetMotifWMHints(Window window, MWMHints **mwmhints){    Atom type_ret;    int fmt_ret;    unsigned long nitems_ret;    unsigned long bytes_after_ret;        if (XGetWindowProperty(dpy, window, _XA_MOTIF_WM_HINTS, 0, 20,			   False, _XA_MOTIF_WM_HINTS,			   &type_ret, &fmt_ret, &nitems_ret, &bytes_after_ret,			   (unsigned char **)mwmhints)!=Success)      return 0;    if (type_ret==_XA_MOTIF_WM_HINTS)      return 1;    else       return 0;}