deleteln(), insdelln(), insertln(), wdeleteln(), winsdelln(), winsertln()

delete and insert lines in a curses window 

Curses Function

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 insertln() routines, insert a blank line above the current line and the bottom line is lost.

RETURN VALUES

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

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 a macros.

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

AVAILABILITY

PTC MKS Toolkit for Professional Developers
PTC MKS Toolkit for Enterprise Developers
PTC MKS Toolkit for Enterprise Developers 64-Bit Edition

SEE ALSO

Functions:
curses()

PTC MKS Toolkit 10.4 Documentation Build 39.