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* @Id: form_field.3x,v 1.6 2003/05/10 20:33:49 jmc Exp @
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<H1>form_field 3x</H1>
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<PRE>
<!-- Manpage converted by man2html 3.0.1 -->
<STRONG><A HREF="form_field.3x.html">form_field(3x)</A></STRONG> <STRONG><A HREF="form_field.3x.html">form_field(3x)</A></STRONG>
</PRE>
<H2>NAME</H2><PRE>
<STRONG>form_field</STRONG> - make and break connections between fields and
forms
</PRE>
<H2>SYNOPSIS</H2><PRE>
<STRONG>#include</STRONG> <STRONG><form.h></STRONG>
int set_form_fields(FORM *form, FIELD **fields);
FIELD **form_fields(const FORM *form);
int field_count(const FORM *form);
int move_field(FIELD *field, int frow, int fcol);
</PRE>
<H2>DESCRIPTION</H2><PRE>
The function <STRONG>set_form_fields</STRONG> changes the field pointer
array of the given <EM>form</EM>. The array must be terminated by
a <STRONG>NULL</STRONG>.
The function <STRONG>form_fields</STRONG> returns the field array of the
given form.
The function <STRONG>field_count</STRONG> returns the count of fields in
<EM>form</EM>.
The function <STRONG>move_field</STRONG> moves the given field (which must
be disconnected) to a specified location on the screen.
</PRE>
<H2>RETURN VALUES</H2><PRE>
The function <STRONG>form_fields</STRONG> returns <STRONG>NULL</STRONG> on error.
The function <STRONG>field_count</STRONG> returns <STRONG>ERR</STRONG> (the general <STRONG>curses</STRONG>
error return value) on error.
The functions <STRONG>set_form_fields</STRONG> and <STRONG>move_field</STRONG> return one of
the following codes on error:
<STRONG>E_OK</STRONG> The routine succeeded.
<STRONG>E_SYSTEM_ERROR</STRONG>
System error occurred (see <STRONG>errno</STRONG>).
<STRONG>E_BAD_ARGUMENT</STRONG>
Routine detected an incorrect or out-of-range argu-
ment.
<STRONG>E_POSTED</STRONG>
The form is already posted.
<STRONG>E_CONNECTED</STRONG>
The field is already connected to a form.
</PRE>
<H2>SEE ALSO</H2><PRE>
<STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="form.3x.html">form(3x)</A></STRONG>.
</PRE>
<H2>NOTES</H2><PRE>
The header file <STRONG><form.h></STRONG> automatically includes the header
file <STRONG><curses.h></STRONG>.
</PRE>
<H2>PORTABILITY</H2><PRE>
These routines emulate the System V forms library. They
were not supported on Version 7 or BSD versions.
The SVr4 forms library documentation specifies the
<STRONG>field_count</STRONG> error value as -1 (which is the value of <STRONG>ERR</STRONG>).
</PRE>
<H2>AUTHORS</H2><PRE>
Juergen Pfeifer. Manual pages and adaptation for new
curses by Eric S. Raymond.
<STRONG><A HREF="form_field.3x.html">form_field(3x)</A></STRONG>
</PRE>
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