Manual Pages  — curs_opaque

 is_cleared,  is_idlok,  is_idcok,  is_immedok,  is_keypad,  is_leaveok,  is_nodelay,  is_notimeout,  is_pad,  is_scrollok,  is_subwin,  is_syncok,  wgetdelay,  wgetparent,  wgetscrreg - obtain curses window properties

SYNOPSIS DESCRIPTION RETURN VALUE NOTES PORTABILITY SEE ALSO

#include <curses.h>

bool is_cleared(const WINDOW *win);
bool is_idcok(const WINDOW *win);
bool is_idlok(const WINDOW *win);
bool is_immedok(const WINDOW *win);
bool is_keypad(const WINDOW *win);
bool is_leaveok(const WINDOW *win);
bool is_nodelay(const WINDOW *win);
bool is_notimeout(const WINDOW *win);
bool is_pad(const WINDOW *win);
bool is_scrollok(const WINDOW *win);
bool is_subwin(const WINDOW *win);
bool is_syncok(const WINDOW *win);

WINDOW * wgetparent(const WINDOW *win);
int wgetdelay(const WINDOW *win);
int wgetscrreg(const WINDOW *win, int *top, int *bottom);

 ncurses provides functions returning properties of a  WINDOW structure, allowing it to be opaque if the application defines the  NCURSES_OPAQUE preprocessor symbol. Opacity in this sense means that the members of struct data types are not directly accessible (for instance, through . or -> operators), but instead must be queried and/or set via library functions. Advantages of opacity include greater abstraction and improved management of concurrent accesses to data structures, keeping object states coherent.

is_cleared
	returns the value set by  clearok(3X).
is_idcok
	returns the value set by  idcok(3X).
is_idlok
	returns the value set by  idlok(3X).
is_immedok
	returns the value set by  immedok(3X).
is_keypad
	returns the value set by  keypad(3X).
is_leaveok
	returns the value set by  leaveok(3X).
is_nodelay
	returns the value set by  nodelay(3X).
is_notimeout
	returns the value set by  notimeout(3X).
is_pad	returns TRUE if the window is a pad; that is, it was created by  newpad(3X).
is_scrollok
	returns the value set by  scrollok(3X).
is_subwin
	returns TRUE if the window is a subwindow, that is, it was created by  subwin(3X) or  derwin(3X).
is_syncok
	returns the value set by  syncok(3X).
wgetdelay
	returns the delay timeout set by  wtimeout(3X).
wgetparent
	returns the parent  WINDOW pointer for subwindows, or NULL for windows having no parent.
wgetscrreg
	stores the the top and bottom rows for the scrolling margin set by  wsetscrreg(3X) in the corresponding arguments, returning ERR upon failure and OK upon successful completion.

These functions return TRUE or FALSE except as noted.

 ncurses provides both a C function and a preprocessor macro for each function documented in this page.

These routines are specific to  ncurses. They were not supported on Version 7, BSD or System V implementations. It is recommended that any code depending on  ncurses extensions be conditioned using  NCURSES_VERSION.

 curses(3X),  curs_inopts(3X),  curs_outopts(3X),  curs_threads(3X),  curs_window(3X)