NAME

       deleteln,  wdeleteln,  insdelln,  winsdelln,  insertln,  winsertln  - delete and insert lines in a curses
       window

SYNOPSIS

       #include <curses.h>

       int deleteln(void);
       int wdeleteln(WINDOW *win);
       int insdelln(int n);
       int winsdelln(WINDOW *win, int n);
       int insertln(void);
       int winsertln(WINDOW *win);

DESCRIPTION

       The deleteln and wdeleteln routines delete the line under the cursor in the window; all lines  below  the
       current  line are moved up one line.  The bottom line of the window is cleared.  The cursor position does
       not change.

       The insdelln and winsdelln routines, for positive n, insert n lines into the specified window  above  the
       current  line.  The n bottom lines are lost.  For negative n, delete n lines (starting with the one under
       the cursor), and move the remaining lines up.  The bottom  n  lines  are  cleared.   The  current  cursor
       position remains the same.

       The  insertln  and  winsertln  routines insert a blank line above the current line and the bottom line is
       lost.

RETURN VALUE

       All routines return the integer ERR upon failure and an OK (SVr4 specifies only "an integer  value  other
       than ERR") upon successful completion.

       X/Open defines no error conditions.  In this implementation, if the window parameter is null, an error is
       returned.

PORTABILITY

       These functions are described in the XSI Curses standard, Issue 4.   The  standard  specifies  that  they
       return ERR on failure, but specifies no error conditions.

NOTES

       Note that all but winsdelln may be macros.

       These  routines  do  not require a hardware line delete or insert feature in the terminal.  In fact, they
       will not use hardware line delete/insert unless idlok(..., TRUE) has been set on the current window.

SEE ALSO

       ncurses(3NCURSES)

                                                                                              deleteln(3NCURSES)