'\" te
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.TH CHGAT 3XCURSES "Jun 5, 2002"
.SH NAME
chgat, mvchgat, mvwchgat, wchgat \- change the rendition of characters in a
window
.SH SYNOPSIS
.LP
.nf
\fBcc\fR [ \fIflag\fR... ] \fIfile\fR... \fB-I\fR /usr/xpg4/include \fB -L \fR /usr/xpg4/lib \e
\fB -R \fR /usr/xpg4/lib \fB -lcurses \fR [ \fIlibrary\fR... ]

\fBc89\fR [ \fIflag\fR... ] \fIfile\fR... \fB-lcurses\fR [ \fIlibrary\fR... ]

#include <curses.h>

\fBint\fR \fBchgat\fR(\fBint\fR \fIn\fR, \fBattr_t\fR \fIattr\fR, \fBshort\fR \fIcolor\fR, \fBconst void *\fR\fIopts\fR);
.fi

.LP
.nf
\fBint\fR \fBmvchgat\fR(\fBint\fR \fIy\fR, \fBint\fR \fIx\fR, \fBint\fR \fIn\fR, \fBattr_t\fR \fIattr\fR, \fBshort\fR \fIcolor\fR,
     \fBconst void *\fR\fIopts\fR);
.fi

.LP
.nf
\fBint\fR \fBmvwchgat\fR(\fBWINDOW *\fR\fIwin\fR, \fBint\fR \fIy\fR, \fBint\fR \fIx\fR, \fBint\fR \fIn\fR, \fBattr_t\fR \fIattr\fR,
     \fBshort\fR \fIcolor\fR, \fBconst void *\fR\fIopts\fR);
.fi

.LP
.nf
\fBint\fR \fBwchgat\fR(\fBWINDOW *\fR\fIwin\fR, \fBint\fR \fIn\fR, \fBattr_t\fR \fIattr\fR, \fBshort\fR \fIcolor\fR,
     \fBconst void *\fR\fIopts\fR);
.fi

.SH DESCRIPTION
.sp
.LP
These  functions change the renditions of the next \fIn\fR characters in the
current or specified window (or of the remaining characters on the current or
specified line, if \fIn\fR is \(mi1),  beginning at the current or specified
cursor position. The attributes and colors are specified by \fIattr\fR and
\fIcolor\fR as for \fBsetcchar\fR(3XCURSES).
.sp
.LP
These function neither update the cursor nor perform wrapping.
.sp
.LP
A value of \fIn\fR that is greater than the remaining  characters on a line is
not an error.
.sp
.LP
The \fIopts\fR argument is reserved for definition in a future release.
Currently, the application must provide a null pointer for \fIopts\fR.
.SH PARAMETERS
.sp
.ne 2
.na
\fB\fIn\fR\fR
.ad
.RS 9n
Is the number of characters whose rendition is to be changed.
.RE

.sp
.ne 2
.na
\fB\fIattr\fR\fR
.ad
.RS 9n
Is the set of attributes to be assigned to the characters.
.RE

.sp
.ne 2
.na
\fB\fIcolor\fR\fR
.ad
.RS 9n
Is the new color pair to be assigned to the characters.
.RE

.sp
.ne 2
.na
\fB\fIopts\fR\fR
.ad
.RS 9n
Is reserved for future use.   Currently, this must be a null pointer.
.RE

.sp
.ne 2
.na
\fB\fIy\fR\fR
.ad
.RS 9n
Is the y (row) coordinate of the starting position in the window.
.RE

.sp
.ne 2
.na
\fB\fIx\fR\fR
.ad
.RS 9n
Is the x (column) coordinate of the starting position in the window. changed in
the window.
.RE

.sp
.ne 2
.na
\fB\fIwin\fR\fR
.ad
.RS 9n
Is a pointer to the window in which the rendition of characters is to be
changed.
.RE

.SH RETURN VALUES
.sp
.LP
 Upon successful completion, these functions returned \fBOK\fR. Otherwise, they
return \fBERR\fR.
.SH ERRORS
.sp
.LP
No errors are defined.
.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(5) for descriptions of the following attributes:
.sp

.sp
.TS
box;
c | c
l | l .
ATTRIBUTE TYPE	ATTRIBUTE VALUE
_
Interface Stability	Standard
_
MT-Level	Unsafe
.TE

.SH SEE ALSO
.sp
.LP
\fBbkgrnd\fR(3XCURSES), \fBlibcurses\fR(3XCURSES), \fBsetcchar\fR(3XCURSES),
\fBattributes\fR(5), \fBstandards\fR(5)