extern NCURSES_EXPORT(int) wget_wch (WINDOW *, wint_t *); /* implemented */
extern NCURSES_EXPORT(int) wget_wstr (WINDOW *, wint_t *); /* generated:WIDEC */
extern NCURSES_EXPORT(int) wgetbkgrnd (WINDOW *, cchar_t *); /* generated:WIDEC */
extern NCURSES_EXPORT(int) wget_wch (WINDOW *, wint_t *); /* implemented */
extern NCURSES_EXPORT(int) wget_wstr (WINDOW *, wint_t *); /* generated:WIDEC */
extern NCURSES_EXPORT(int) wgetbkgrnd (WINDOW *, cchar_t *); /* generated:WIDEC */
extern NCURSES_EXPORT(int) whline_set (WINDOW *, const cchar_t *, int); /* implemented */
extern NCURSES_EXPORT(int) win_wch (WINDOW *, cchar_t *); /* implemented */
extern NCURSES_EXPORT(int) win_wchnstr (WINDOW *, cchar_t *, int); /* implemented */
extern NCURSES_EXPORT(int) whline_set (WINDOW *, const cchar_t *, int); /* implemented */
extern NCURSES_EXPORT(int) win_wch (WINDOW *, cchar_t *); /* implemented */
extern NCURSES_EXPORT(int) win_wchnstr (WINDOW *, cchar_t *, int); /* implemented */
#define wins_wstr(w,t) wins_nwstr((w),(t),-1)
#if !NCURSES_OPAQUE
#define wins_wstr(w,t) wins_nwstr((w),(t),-1)
#if !NCURSES_OPAQUE
-#define wgetbkgrnd(win,wch) ((0 != (const void*)(wch)) ? ((win) ? (*(wch) = (win)->_bkgrnd) : *(wch), OK) : ERR)
+#define wgetbkgrnd(win,wch) (NCURSES_OK_ADDR(wch) ? ((win) ? (*(wch) = (win)->_bkgrnd) : *(wch), OK) : ERR)
#endif
#define mvadd_wch(y,x,c) mvwadd_wch(stdscr,(y),(x),(c))
#endif
#define mvadd_wch(y,x,c) mvwadd_wch(stdscr,(y),(x),(c))