curs_kernel man page on IRIX

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curs_kernel(3X)						       curs_kernel(3X)

NAME
     curs_kernel:  def_prog_mode, def_shell_mode, reset_prog_mode,
     reset_shell_mode, resetty, savetty, getsyx, setsyx, ripoffline, curs_set,
     napms - low-level curses routines

SYNOPSIS
     #include <curses.h>

     int def_prog_mode(void);
     int def_shell_mode(void);
     int reset_prog_mode(void);
     int reset_shell_mode(void);
     int resetty(void);
     int savetty(void);
     int getsyx(int y, int x);
     int setsyx(int y, int x);
     int ripoffline(int line, int (*init)(WINDOW *, int));
     int curs_set(int visibility);
     int napms(int ms);

DESCRIPTION
     The following routines give low-level access to various curses
     functionality.  Theses routines typically are 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.	This is done
     automatically by initscr.

     The reset_prog_mode and reset_shell_mode routines restore the terminal to
     "program" (in curses) or "shell" (out of curses) state.  These are done
     automatically by endwin and, after an endwin, by doupdate, so they
     normally are not called.

     The resetty and savetty routines save and restore the state of the
     terminal modes.  savetty saves the current state in a buffer and resetty
     restores the state to what it was at the last call to savetty.

     With the getsyx routine, the current coordinates of the virtual screen
     cursor are returned in y and x.  If leaveok is currently TRUE, then -1,-1
     is returned.  If lines have been removed from the top of the screen,
     using ripoffline, y and x include these lines; therefore, y and x should
     be used only as arguments for setsyx.

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curs_kernel(3X)						       curs_kernel(3X)

     With the setsyx routine, the virtual screen cursor is set to y, x.	 If y
     and x are both -1, then leaveok is set.  The two routines getsyx and
     setsyx are designed to be used by a library routine, which manipulates
     curses windows but does not want to change the current position of the
     program's cursor.	The library routine would call getsyx at the
     beginning, do its manipulation of its own windows, do a wnoutrefresh on
     its windows, call setsyx, and then call doupdate.

     The ripoffline routine provides access to the same facility that slk_init
     [see curs_slk(3X)] uses to reduce the size of the screen.	ripoffline
     must be called before initscr or newterm is called.  If line is positive,
     a line is removed from the top of stdscr; if line is negative, a line is
     removed from the bottom.  When this is done inside initscr, the routine
     init (supplied by the user) is called 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 integer variables LINES and COLS (defined in <curses.h>) are
     not guaranteed to be accurate and wrefresh or doupdate must not be
     called.  It is allowable to call wnoutrefresh during the initialization
     routine.

     ripoffline can be called up to five times before calling initscr or
     newterm.

     With the curs_set routine, the cursor state is set to invisible, normal,
     or very visible for visibility equal to 0, 1, or 2 respectively.  If the
     terminal supports the visibility requested, the previous cursor state is
     returned; otherwise, ERR is returned.

     The napms routine is used to sleep for ms milliseconds.

RETURN VALUE
     Except for curs_set, these routines always return OK.  curs_set returns
     the previous cursor state, or ERR if the requested visibility is not
     supported.

NOTES
     The header file <curses.h> automatically includes the header files
     <stdio.h> and <unctrl.h>.

     Note that getsyx is a macro, so & is not necessary before the variables y
     and x.

SEE ALSO
     curses(3X), curs_initscr(3X), curs_outopts(3X), curs_refresh(3X),
     curs_scr_dump(3X), curs_slk(3X)

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