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<H1 class="no-header">curs_insch 3x 2024-04-20 ncurses 6.5 Library calls</H1>
<PRE>
<STRONG><A HREF="curs_insch.3x.html">curs_insch(3x)</A></STRONG> Library calls <STRONG><A HREF="curs_insch.3x.html">curs_insch(3x)</A></STRONG>
</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
<STRONG>insch</STRONG>, <STRONG>winsch</STRONG>, <STRONG>mvinsch</STRONG>, <STRONG>mvwinsch</STRONG> - insert a <EM>curses</EM> character in a
window
</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
<STRONG>#include</STRONG> <STRONG><curses.h></STRONG>
<STRONG>int</STRONG> <STRONG>insch(chtype</STRONG> <EM>ch</EM><STRONG>);</STRONG>
<STRONG>int</STRONG> <STRONG>winsch(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>chtype</STRONG> <EM>ch</EM><STRONG>);</STRONG>
<STRONG>int</STRONG> <STRONG>mvinsch(int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>,</STRONG> <STRONG>chtype</STRONG> <EM>ch</EM><STRONG>);</STRONG>
<STRONG>int</STRONG> <STRONG>mvwinsch(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>,</STRONG> <STRONG>chtype</STRONG> <EM>ch</EM><STRONG>);</STRONG>
</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
These functions insert the <EM>curses</EM> character <EM>ch</EM> at the cursor in the
specified window <EM>win</EM> (or <STRONG>stdscr</STRONG>). The character previously at the
cursor and any to its right move one cell to the right; the rightmost
character on the line is discarded. The cursor does not advance.
</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
These functions return <STRONG>OK</STRONG> on success and <STRONG>ERR</STRONG> on failure.
Functions taking a <EM>WINDOW</EM> pointer argument fail if the pointer is <STRONG>NULL</STRONG>.
Functions prefixed with "mv" first perform cursor movement and fail if
the position (<EM>y</EM>, <EM>x</EM>) is outside the window boundaries.
</PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
<STRONG>insch</STRONG>, <STRONG>mvinsch</STRONG>, and <STRONG>mvwinsch</STRONG> may be implemented as macros.
A terminal's <STRONG>insert_character</STRONG> (<STRONG>ich1</STRONG>) capability is not necessarily
employed.
</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
X/Open Curses, Issue 4 describes these functions.
SVr4 <EM>curses</EM> describes a successful return value only as "an integer
value other than <STRONG>ERR</STRONG>".
</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
<STRONG><A HREF="curs_ins_wch.3x.html">curs_ins_wch(3x)</A></STRONG> describes comparable functions in the wide-character
<EM>curses</EM> configuration.
<STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>
ncurses 6.5 2024-04-20 <STRONG><A HREF="curs_insch.3x.html">curs_insch(3x)</A></STRONG>
</PRE>
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<ul>
<li><a href="#h2-NAME">NAME</a></li>
<li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
<li><a href="#h2-DESCRIPTION">DESCRIPTION</a></li>
<li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
<li><a href="#h2-NOTES">NOTES</a></li>
<li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
</ul>
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