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.Dd July 6, 2009
.Dt CURSES_CHGAT 3
.Os
.Sh NAME
.Nm chgat ,
.Nm wchgat ,
.Nm mvchgat ,
.Nm mvwchgat
.Nd curses on-screen attribute manipulation routines
.Sh LIBRARY
.Lb libcurses
.Sh SYNOPSIS
.In curses.h
.Ft int
.Fn chgat "int n" "attr_t attr" "short color" "const void *opts"
.Ft int
.Fn wchgat "WINDOW *win" "int n" "attr_t attr" "short color" \
"const void *opts"
.Ft int
.Fn mvchgat "int y" "int x" "int n" "attr_t attr" "short color" \
"const void *opts"
.Ft int
.Fn mvwchgat "WINDOW *win" "int y" "int x" "int n" "attr_t attr" \
"short color" "const void *opts"
.Sh DESCRIPTION
These functions modify the attributes of the drawn content on stdscr or
on the specified window.
.Pp
The
.Fn chgat
function sets the attributes of the next
.Fa n
characters to
.Fa attr
and the color pair to
.Fa color .
If
.Fa n
is negative or larger than the remainder of the line, it gets truncated.
.Pp
The
.Fn wchgat
is the same as the
.Fn chgat
function, excepting that the attributes are changed in the window specified by
.Fa win .
.Pp
The
.Fn mvchgat
and
.Fn mvwchgat
functions are the same as the
.Fn chgat
and
.Fn wchgat
functions, respectively, excepting that they operate from the position
specified by
.Fa y ,
.Fa x .
.Pp
These functions do not perform wrapping.
They do not update the cursor position.
.Sh RETURN VALUES
The functions that return an int will return one of the following
values:
.Pp
.Bl -tag -width ERR -compact
.It Er OK
The function completed successfully.
.It Er ERR
An error occurred in the function.
.El
.Sh SEE ALSO
.Xr curses_attributes 3
.Sh STANDARDS
The
.Fn chgat ,
.Fn wchgat ,
.Fn mvchgat ,
and
.Fn mvwchgat
functions conform to
.St -xcurses4.2 .
.Sh HISTORY
The Curses package appeared in
.Bx 4.0 .
Support for the
.Fn chgat
family was added in
.Nx 6.0 .