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| <H1 class="no-header">define_key 3x 2024-03-16 ncurses 6.5 Library calls</H1> |
| <PRE> |
| <STRONG><A HREF="define_key.3x.html">define_key(3x)</A></STRONG> Library calls <STRONG><A HREF="define_key.3x.html">define_key(3x)</A></STRONG> |
| |
| |
| |
| |
| </PRE><H2><a name="h2-NAME">NAME</a></H2><PRE> |
| <STRONG>define_key</STRONG> - define a <EM>curses</EM> keycode |
| |
| |
| </PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE> |
| <STRONG>#include</STRONG> <STRONG><curses.h></STRONG> |
| |
| <STRONG>int</STRONG> <STRONG>define_key(const</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG><EM>definition</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>keycode</EM><STRONG>);</STRONG> |
| |
| |
| </PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE> |
| This is an extension to the <EM>curses</EM> library. It permits an application |
| to define keycodes with their corresponding control strings, so that |
| the <EM>ncurses</EM> library will interpret them just as it would the predefined |
| codes in the terminfo database. |
| |
| If <EM>definition</EM> is <STRONG>NULL</STRONG>, any existing one for the keycode is removed. |
| Similarly, if the given keycode is negative or zero, any existing |
| string for the given definition is removed. |
| |
| |
| </PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE> |
| Either <EM>keycode</EM> must be greater than zero, or <EM>definition</EM> must be non- |
| <STRONG>NULL</STRONG>, otherwise <STRONG>ERR</STRONG> is returned. <STRONG>ERR</STRONG> may also be returned if there is |
| insufficient memory to allocate the data to store the definition. If |
| no error is detected, <STRONG>OK</STRONG> is returned. |
| |
| |
| </PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE> |
| These routines are specific to <EM>ncurses</EM>. They were not supported on |
| Version 7, BSD or System V implementations. It is recommended that any |
| code depending on them be conditioned using <STRONG>NCURSES_VERSION</STRONG>. |
| |
| |
| </PRE><H2><a name="h2-AUTHORS">AUTHORS</a></H2><PRE> |
| Thomas Dickey |
| |
| |
| </PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE> |
| <STRONG><A HREF="keyok.3x.html">keyok(3x)</A></STRONG>, <STRONG><A HREF="key_defined.3x.html">key_defined(3x)</A></STRONG> |
| |
| |
| |
| ncurses 6.5 2024-03-16 <STRONG><A HREF="define_key.3x.html">define_key(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-PORTABILITY">PORTABILITY</a></li> |
| <li><a href="#h2-AUTHORS">AUTHORS</a></li> |
| <li><a href="#h2-SEE-ALSO">SEE ALSO</a></li> |
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