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+<H1 class="no-header">form_hook 3x 2024-03-16 ncurses 6.4 Library calls</H1>
<PRE>
-<!-- Manpage converted by man2html 3.0.1 -->
-
-</PRE>
-<H2>NAME</H2><PRE>
- <B>form_hook</B> - set hooks for automatic invocation by applica-
- tions
-
-
-</PRE>
-<H2>SYNOPSIS</H2><PRE>
- <B>#include</B> <B><form.h></B>
- int set_field_init(FORM *form, void (*func)(FORM *));
- void (*)(FORM *) field_init(const FORM *form);
- int set_field_term(FORM *form, void (*func)(FORM *));
- void (*)(FORM *) field_term(const FORM *form);
- int set_form_init(FORM *form, void (*func)(FORM *));
- void (*)(FORM *) form_init(const FORM *form);
- int set_form_term(FORM *form, void (*func)(FORM *));
- void (*)(FORM *) form_term(const FORM *form);
-
-
-</PRE>
-<H2>DESCRIPTION</H2><PRE>
- These functions make it possible to set hook functions to
- be called at various points in the automatic processing of
- input event codes by <B>form_driver</B>.
-
- The function <B>set_field_init</B> sets a hook to be called at
- form-post time and each time the selected field changes
- (after the change). <B>field_init</B> returns the current field
- init hook, if any (<B>NULL</B> if there is no such hook).
-
- The function <B>set_field_term</B> sets a hook to be called at
- form-unpost time and each time the selected field changes
- (before the change). <B>field_term</B> returns the current field
- term hook, if any (<B>NULL</B> if there is no such hook).
-
- The function <B>set_form_init</B> sets a hook to be called at
- form-post time and just after a page change once it is
- posted. <B>form_init</B> returns the current form init hook, if
- any (<B>NULL</B> if there is no such hook).
-
- The function <B>set_form_term</B> sets a hook to be called at
- form-unpost time and just before a page change once it is
- posted. <B>form_init</B> returns the current form term hook, if
- any (<B>NULL</B> if there is no such hook).
-
-
-</PRE>
-<H2>RETURN VALUE</H2><PRE>
- Routines that return pointers return <B>NULL</B> on error. Other
- routines return one of the following:
-
- <B>E_OK</B> The routine succeeded.
-
- <B>E_SYSTEM_ERROR</B>
- System error occurred (see <B>errno</B>).
-
-
-</PRE>
-<H2>SEE ALSO</H2><PRE>
- <B><A HREF="ncurses.3x.html">curses(3x)</A></B>, <B><A HREF="form.3x.html">form(3x)</A></B>.
-
-
-</PRE>
-<H2>NOTES</H2><PRE>
- The header file <B><form.h></B> automatically includes the header
- file <B><curses.h></B>.
-
-
-</PRE>
-<H2>PORTABILITY</H2><PRE>
- These routines emulate the System V forms library. They
- were not supported on Version 7 or BSD versions.
-
-
-</PRE>
-<H2>AUTHORS</H2><PRE>
- Juergen Pfeifer. Manual pages and adaptation for new
- curses by Eric S. Raymond.
-
-
-
-
+<STRONG><A HREF="form_hook.3x.html">form_hook(3x)</A></STRONG> Library calls <STRONG><A HREF="form_hook.3x.html">form_hook(3x)</A></STRONG>
+</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
+ <STRONG>form_hook</STRONG> - set hooks for automatic invocation by applications
+</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
+ <STRONG>#include</STRONG> <STRONG><form.h></STRONG>
+ <STRONG>int</STRONG> <STRONG>set_field_init(FORM</STRONG> <STRONG>*</STRONG><EM>form</EM><STRONG>,</STRONG> <STRONG>Form_Hook</STRONG> <EM>func</EM><STRONG>);</STRONG>
+ <STRONG>Form_Hook</STRONG> <STRONG>field_init(const</STRONG> <STRONG>FORM</STRONG> <STRONG>*</STRONG><EM>form</EM><STRONG>);</STRONG>
+ <STRONG>int</STRONG> <STRONG>set_field_term(FORM</STRONG> <STRONG>*</STRONG><EM>form</EM><STRONG>,</STRONG> <STRONG>Form_Hook</STRONG> <EM>func</EM><STRONG>);</STRONG>
+ <STRONG>Form_Hook</STRONG> <STRONG>field_term(const</STRONG> <STRONG>FORM</STRONG> <STRONG>*</STRONG><EM>form</EM><STRONG>);</STRONG>
+ <STRONG>int</STRONG> <STRONG>set_form_init(FORM</STRONG> <STRONG>*</STRONG><EM>form</EM><STRONG>,</STRONG> <STRONG>Form_Hook</STRONG> <EM>func</EM><STRONG>);</STRONG>
+ <STRONG>Form_Hook</STRONG> <STRONG>form_init(const</STRONG> <STRONG>FORM</STRONG> <STRONG>*</STRONG><EM>form</EM><STRONG>);</STRONG>
+ <STRONG>int</STRONG> <STRONG>set_form_term(FORM</STRONG> <STRONG>*</STRONG><EM>form</EM><STRONG>,</STRONG> <STRONG>Form_Hook</STRONG> <EM>func</EM><STRONG>);</STRONG>
+ <STRONG>Form_Hook</STRONG> <STRONG>form_term(const</STRONG> <STRONG>FORM</STRONG> <STRONG>*</STRONG><EM>form</EM><STRONG>);</STRONG>
+</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
+ These functions make it possible to set hook functions to be called at
+ various points in the automatic processing of input event codes by
+ <STRONG>form_driver</STRONG>.
+</PRE><H3><a name="h3-set_field_init">set_field_init</a></H3><PRE>
+ sets a hook to be called at form-post time and each time the selected
+ field changes (after the change).
+</PRE><H3><a name="h3-field_init">field_init</a></H3><PRE>
+ returns the current field init hook, if any (<STRONG>NULL</STRONG> if there is no such
+ hook).
+</PRE><H3><a name="h3-set_field_term">set_field_term</a></H3><PRE>
+ sets a hook to be called at form-unpost time and each time the selected
+ field changes (before the change).
+</PRE><H3><a name="h3-field_term">field_term</a></H3><PRE>
+ returns the current field term hook, if any (<STRONG>NULL</STRONG> if there is no such
+ hook).
+</PRE><H3><a name="h3-set_form_init">set_form_init</a></H3><PRE>
+ sets a hook to be called at form-post time and just after a page change
+ once it is posted.
+</PRE><H3><a name="h3-form_init">form_init</a></H3><PRE>
+ returns the current form init hook, if any (<STRONG>NULL</STRONG> if there is no such
+ hook).
+</PRE><H3><a name="h3-set_form_term">set_form_term</a></H3><PRE>
+ sets a hook to be called at form-unpost time and just before a page
+ change once it is posted.
+</PRE><H3><a name="h3-form_term">form_term</a></H3><PRE>
+ returns the current form term hook, if any (<STRONG>NULL</STRONG> if there is no such
+ hook).
+</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
+ Routines that return pointers return <STRONG>NULL</STRONG> on error. Other routines
+ return one of the following:
+ <STRONG>E_OK</STRONG> The routine succeeded.
+ <STRONG>E_SYSTEM_ERROR</STRONG>
+ System error occurred (see <STRONG>errno(3)</STRONG>).
+</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
+ These routines emulate the System V forms library. They were not
+ supported on Version 7 or BSD versions.
+</PRE><H2><a name="h2-AUTHORS">AUTHORS</a></H2><PRE>
+ Juergen Pfeifer. Manual pages and adaptation for new curses by Eric S.
+ Raymond.
+</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
+ <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="form.3x.html">form(3x)</A></STRONG>
+ncurses 6.4 2024-03-16 <STRONG><A HREF="form_hook.3x.html">form_hook(3x)</A></STRONG>
</PRE>
-<HR>
-<ADDRESS>
-Man(1) output converted with
-<a href="http://www.oac.uci.edu/indiv/ehood/man2html.html">man2html</a>
-</ADDRESS>
+<div class="nav">
+<ul>
+<li><a href="#h2-NAME">NAME</a></li>
+<li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
+<li><a href="#h2-DESCRIPTION">DESCRIPTION</a>
+<ul>
+<li><a href="#h3-set_field_init">set_field_init</a></li>
+<li><a href="#h3-field_init">field_init</a></li>
+<li><a href="#h3-set_field_term">set_field_term</a></li>
+<li><a href="#h3-field_term">field_term</a></li>
+<li><a href="#h3-set_form_init">set_form_init</a></li>
+<li><a href="#h3-form_init">form_init</a></li>
+<li><a href="#h3-set_form_term">set_form_term</a></li>
+<li><a href="#h3-form_term">form_term</a></li>
+</ul>
+</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>
+</ul>
+</div>
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