Sortix volatile manual

This manual documents Sortix volatile, a development build that has not been officially released. You can instead view this document in the latest official manual.

NAME

chgat, wchgat, mvchgat, mvwchgat — curses on-screen attribute manipulation routines

LIBRARY

Curses Library (libcurses, -lcurses)

SYNOPSIS

#include <curses.h>

int
chgat(int n, attr_t attr, short color, const void *opts);

int
wchgat(WINDOW *win, int n, attr_t attr, short color, const void *opts);

int
mvchgat(int y, int x, int n, attr_t attr, short color, const void *opts);

int
mvwchgat(WINDOW *win, int y, int x, int n, attr_t attr, short color, const void *opts);

DESCRIPTION

These functions modify the attributes of the drawn content on stdscr or on the specified window.

The chgat() function sets the attributes of the next n characters to attr and the color pair to color. If n is negative or larger than the remainder of the line, it gets truncated.

The wchgat() is the same as the chgat() function, excepting that the attributes are changed in the window specified by win.

The mvchgat() and mvwchgat() functions are the same as the chgat() and wchgat() functions, respectively, excepting that they operate from the position specified by y, x.

These functions do not perform wrapping. They do not update the cursor position.

RETURN VALUES

The functions that return an int will return one of the following values:

STANDARDS

The chgat(), wchgat(), mvchgat(), and mvwchgat() functions conform to X/Open Curses Issue 4, Version 2 (“XCURSES4.2”).

HISTORY

The Curses package appeared in 4.0BSD. Support for the chgat() family was added in NetBSD 6.0.