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- * @Id: form_hook.3x,v 1.16 2020/10/18 00:06:29 tom Exp @
+ * @Id: form_hook.3x,v 1.37 2024/03/16 15:35:01 tom Exp @
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+<TITLE>form_hook 3x 2024-03-16 ncurses 6.5 Library calls</TITLE>
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-<H1 class="no-header">form_hook 3X</H1>
+<H1 class="no-header">form_hook 3x 2024-03-16 ncurses 6.5 Library calls</H1>
<PRE>
-<B><A HREF="form_hook.3X.html">form_hook(3X)</A></B> <B><A HREF="form_hook.3X.html">form_hook(3X)</A></B>
+<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>
- <B>form_hook</B> - set hooks for automatic invocation by applications
+ <STRONG>form_hook</STRONG> - set hooks for automatic invocation by applications
</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
- <B>#include</B> <B><form.h></B>
+ <STRONG>#include</STRONG> <STRONG><form.h></STRONG>
- <B>int</B> <B>set_field_init(FORM</B> <B>*</B><I>form</I><B>,</B> <B>Form_Hook</B> <I>func</I><B>);</B>
- <B>Form_Hook</B> <B>field_init(const</B> <B>FORM</B> <B>*</B><I>form</I><B>);</B>
+ <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>
- <B>int</B> <B>set_field_term(FORM</B> <B>*</B><I>form</I><B>,</B> <B>Form_Hook</B> <I>func</I><B>);</B>
- <B>Form_Hook</B> <B>field_term(const</B> <B>FORM</B> <B>*</B><I>form</I><B>);</B>
+ <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>
- <B>int</B> <B>set_form_init(FORM</B> <B>*</B><I>form</I><B>,</B> <B>Form_Hook</B> <I>func</I><B>);</B>
- <B>Form_Hook</B> <B>form_init(const</B> <B>FORM</B> <B>*</B><I>form</I><B>);</B>
+ <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>
- <B>int</B> <B>set_form_term(FORM</B> <B>*</B><I>form</I><B>,</B> <B>Form_Hook</B> <I>func</I><B>);</B>
- <B>Form_Hook</B> <B>form_term(const</B> <B>FORM</B> <B>*</B><I>form</I><B>);</B>
+ <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
- <B>form_driver</B>.
+ <STRONG>form_driver</STRONG>.
- 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).
+</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).
- 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><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><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
- Routines that return pointers return <B>NULL</B> on error. Other routines
- return one of the following:
+</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).
- <B>E_OK</B> The routine succeeded.
- <B>E_SYSTEM_ERROR</B>
- System error occurred (see <B>errno(3)</B>).
+</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><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
- <B><A HREF="curses.3X.html">curses(3X)</A></B>, <B><A HREF="form.3X.html">form(3X)</A></B>.
+</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><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
- The header file <B><form.h></B> automatically includes the header file
- <B><curses.h></B>.
+</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
+ These routines emulate the System V forms library. They were not
supported on Version 7 or BSD versions.
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>
+
+
- <B><A HREF="form_hook.3X.html">form_hook(3X)</A></B>
+ncurses 6.5 2024-03-16 <STRONG><A HREF="form_hook.3x.html">form_hook(3x)</A></STRONG>
</PRE>
<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></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-SEE-ALSO">SEE ALSO</a></li>
-<li><a href="#h2-NOTES">NOTES</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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