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126 lines
6.4 KiB
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* @Id: curs_deleteln.3x,v 1.13 2010/12/04 18:36:44 tom Exp @
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
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<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
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<meta name="generator" content="Manpage converted by man2html - see http://invisible-island.net/scripts/readme.html#others_scripts">
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<TITLE>curs_deleteln 3x</TITLE>
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<link rev=made href="mailto:bug-ncurses@gnu.org">
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<H1 class="no-header">curs_deleteln 3x</H1>
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<PRE>
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<STRONG><A HREF="curs_deleteln.3x.html">curs_deleteln(3x)</A></STRONG> <STRONG><A HREF="curs_deleteln.3x.html">curs_deleteln(3x)</A></STRONG>
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</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
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<STRONG>deleteln</STRONG>, <STRONG>wdeleteln</STRONG>, <STRONG>insdelln</STRONG>, <STRONG>winsdelln</STRONG>, <STRONG>insertln</STRONG>, <STRONG>win-</STRONG>
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<STRONG>sertln</STRONG> - delete and insert lines in a <STRONG>curses</STRONG> window
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</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
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<STRONG>#include</STRONG> <STRONG><curses.h></STRONG>
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<STRONG>int</STRONG> <STRONG>deleteln(void);</STRONG>
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<STRONG>int</STRONG> <STRONG>wdeleteln(WINDOW</STRONG> <STRONG>*win);</STRONG>
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<STRONG>int</STRONG> <STRONG>insdelln(int</STRONG> <STRONG>n);</STRONG>
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<STRONG>int</STRONG> <STRONG>winsdelln(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>int</STRONG> <STRONG>n);</STRONG>
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<STRONG>int</STRONG> <STRONG>insertln(void);</STRONG>
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<STRONG>int</STRONG> <STRONG>winsertln(WINDOW</STRONG> <STRONG>*win);</STRONG>
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</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
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The <STRONG>deleteln</STRONG> and <STRONG>wdeleteln</STRONG> routines delete the line under
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the cursor in the window; all lines below the current line
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are moved up one line. The bottom line of the window is
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cleared. The cursor position does not change.
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The <STRONG>insdelln</STRONG> and <STRONG>winsdelln</STRONG> routines, for positive <EM>n</EM>,
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insert <EM>n</EM> lines into the specified window above the current
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line. The <EM>n</EM> bottom lines are lost. For negative <EM>n</EM>,
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delete <EM>n</EM> lines (starting with the one under the cursor),
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and move the remaining lines up. The bottom <EM>n</EM> lines are
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cleared. The current cursor position remains the same.
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The <STRONG>insertln</STRONG> and <STRONG>winsertln</STRONG> routines insert a blank line
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above the current line and the bottom line is lost.
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</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
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All routines return the integer <STRONG>ERR</STRONG> upon failure and an <STRONG>OK</STRONG>
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(SVr4 specifies only "an integer value other than <STRONG>ERR</STRONG>")
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upon successful completion.
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X/Open defines no error conditions. In this implementa-
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tion, if the window parameter is null, an error is
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returned.
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</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
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These functions are described in the XSI Curses standard,
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Issue 4. The standard specifies that they return <STRONG>ERR</STRONG> on
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failure, but specifies no error conditions.
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</PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
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Note that all but <STRONG>winsdelln</STRONG> may be macros.
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These routines do not require a hardware line delete or
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insert feature in the terminal. In fact, they will not
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use hardware line delete/insert unless <STRONG>idlok(...,</STRONG> <STRONG>TRUE)</STRONG>
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has been set on the current window.
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</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
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<STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>
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<STRONG><A HREF="curs_deleteln.3x.html">curs_deleteln(3x)</A></STRONG>
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</PRE>
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<div class="nav">
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<ul>
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<li><a href="#h2-NAME">NAME</a></li>
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<li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
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<li><a href="#h2-DESCRIPTION">DESCRIPTION</a></li>
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<li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
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<li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
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<li><a href="#h2-NOTES">NOTES</a></li>
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<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
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</ul>
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</div>
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</BODY>
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