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128 lines
6.4 KiB
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* @Id: form_field.3x,v 1.36 2024/12/28 21:26:21 tom Exp @
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
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<HTML>
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<HEAD>
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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 https://invisible-island.net/scripts/readme.html#others_scripts">
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<TITLE>form_field 3x 2024-12-28 ncurses 6.6 Library calls</TITLE>
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<link rel="author" href="mailto:bug-ncurses@gnu.org">
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<BODY>
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<H1 class="no-header">form_field 3x 2024-12-28 ncurses 6.6 Library calls</H1>
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<PRE>
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<STRONG><A HREF="form_field.3x.html">form_field(3x)</A></STRONG> Library calls <STRONG><A HREF="form_field.3x.html">form_field(3x)</A></STRONG>
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</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
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<STRONG>form_field</STRONG> - make and break connections between fields and forms
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</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
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<STRONG>#include</STRONG> <STRONG><form.h></STRONG>
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<STRONG>int</STRONG> <STRONG>set_form_fields(FORM</STRONG> <STRONG>*</STRONG><EM>form</EM><STRONG>,</STRONG> <STRONG>FIELD</STRONG> <STRONG>**</STRONG><EM>fields</EM><STRONG>);</STRONG>
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<STRONG>FIELD</STRONG> <STRONG>**form_fields(const</STRONG> <STRONG>FORM</STRONG> <STRONG>*</STRONG><EM>form</EM><STRONG>);</STRONG>
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<STRONG>int</STRONG> <STRONG>field_count(const</STRONG> <STRONG>FORM</STRONG> <STRONG>*</STRONG><EM>form</EM><STRONG>);</STRONG>
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<STRONG>int</STRONG> <STRONG>move_field(FIELD</STRONG> <STRONG>*</STRONG><EM>field</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>frow</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>fcol</EM><STRONG>);</STRONG>
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</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
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The function <STRONG>set_form_fields</STRONG> changes the field pointer array of the
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given <EM>form</EM>. The array must be terminated by a <EM>NULL</EM>.
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The function <STRONG>form_fields</STRONG> returns the field array of the given form.
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The function <STRONG>field_count</STRONG> returns the count of fields in <EM>form</EM>.
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The function <STRONG>move_field</STRONG> moves the given field (which must be
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disconnected) to a specified location on the screen.
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</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
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The function <STRONG>form_fields</STRONG> returns a pointer (which may be <EM>NULL</EM>). It
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does not set <STRONG>errno</STRONG>.
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The function <STRONG>field_count</STRONG> returns <STRONG>ERR</STRONG> if the <EM>form</EM> parameter is <EM>NULL</EM>.
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The functions <STRONG>set_form_fields</STRONG> and <STRONG>move_field</STRONG> return one of the
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following codes on error:
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<STRONG>E_OK</STRONG> The routine succeeded.
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<STRONG>E_BAD_ARGUMENT</STRONG>
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Routine detected an incorrect or out-of-range argument.
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<STRONG>E_CONNECTED</STRONG>
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The field is already connected to a form.
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<STRONG>E_POSTED</STRONG>
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The form is already posted.
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<STRONG>E_SYSTEM_ERROR</STRONG>
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System error occurred (see <STRONG>errno(3)</STRONG>).
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</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
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These routines emulate the System V forms library. They were not
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supported on Version 7 or BSD versions.
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The SVr4 forms library documentation specifies the <STRONG>field_count</STRONG> error
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value as -1 (which is the value of <STRONG>ERR</STRONG>).
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</PRE><H2><a name="h2-AUTHORS">AUTHORS</a></H2><PRE>
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Juergen Pfeifer. Manual pages and adaptation for new curses by Eric S.
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Raymond.
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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>, <STRONG><A HREF="form.3x.html">form(3x)</A></STRONG>
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ncurses 6.6 2024-12-28 <STRONG><A HREF="form_field.3x.html">form_field(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-AUTHORS">AUTHORS</a></li>
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<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
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