curs_kernel, curs_set, def_prog_mode, def_shell_mode, napms,
reset_prog_mode, reset_shell_mode, ripoffline, savetty - Low-level
int visibility ); int def_prog_mode(
void ); int def_shell_mode(
void ); int napms(
int ms ); int reset_prog_mode(
void ); int reset_shell_mode(
void ); int resetty(
void ); int ripoffline(
int (*init)(WINDOW *, int) ); int savetty(
Curses Library (libcurses)
Interfaces documented on this reference page conform to industry stan‐
dards as follows:
curs_set, def_prog_mode, def_shell_mode, napms, reset_prog_mode,
reset_shell_mode, resetty, ripoffline, savetty: XCURSES4.2
Refer to the standards(5) reference page for more information about
industry standards and associated tags.
These routines give low-level access to various Curses functionality.
They are typically used inside library routines.
The def_prog_mode and def_shell_mode routines save the current terminal
modes as the “program” (in Curses) or “shell” (not in Curses) state for
use by the reset_prog_mode and reset_shell_mode routines. The initscr
routine saves these states automatically.
The reset_prog_mode and reset_shell_mode routines restore the terminal
to “program” (in Curses) or “shell” (out of Curses) state. Applications
do not usually call these routines because the endwin and, after an
endwin, doupdate routines automatically restore these states.
The resetty and savetty routines save and restore the state of the ter‐
minal modes. The savetty routine saves the current state in a buffer.
The resetty routine restores the state to what it was at the last call
The ripoffline routine provides access to the same facility used by
slk_init to reduce the size of the screen (see curs_slk(3)). Applica‐
tions must call ripoffline before calling initscr or newterm. If line
is positive, ripoffline removes a line from the top of stdscr; if line
is negative, the routine removes a line from the bottom of stdscr. When
this operation is done inside initscr, the application calls the pro‐
gram-supplied init routine with two arguments: a window pointer to the
one-line window that has been allocated and an integer with the number
of columns in the window. Inside this initialization routine, the inte‐
ger variables LINES and COLS (defined in <curses.h>) are not guaranteed
to be accurate; therefore, the application must not call wrefresh or
doupdate. However, the application can call wnoutrefresh during the
The application can call ripoffline up to five times before calling
initscr or newterm.
The curs_set routine sets the cursor visibility state to 0, 1, or 2,
which correspond to invisible, normal, or very visible, respectively.
If the terminal supports the requested visibility, the routine returns
the previous cursor state; otherwise, the routine returns ERR.
The napms routine causes the program to sleep for ms milliseconds.
The header file <curses.h> automatically includes the header file
The curs_set routine returns the previous cursor state, or ERR if the
terminal does not support the requested visibility.
The napms and ripoffline routines always return OK.
The other routines return OK upon successful completion; otherwise,
they return ERR.
Functions: curses(3), curs_initscr(3), curs_outopts(3),
curs_refresh(3), curs_scr_dump(3), curs_slk(3)