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- <STRONG>menu_hook</STRONG> - set hooks for automatic invocation by applica-
- tions
-
-
-</PRE>
-<H2>SYNOPSIS</H2><PRE>
- <STRONG>#include</STRONG> <STRONG><menu.h></STRONG>
- int set_item_init(MENU *menu, void (*func)(MENU *));
- void (*)(MENU *) item_init(const MENU *menu);
- int set_item_term(MENU *menu, void (*func)(MENU *));
- void (*)(MENU *) item_term(const MENU *menu);
- int set_menu_init(MENU *menu, void (*func)(MENU *));
- void (*)(MENU *) menu_init(const MENU *menu);
- int set_menu_term(MENU *menu, void (*func)(MENU *));
- void (*)(MENU *) menu_term(const MENU *menu);
-
-
-</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 <STRONG>menu_driver</STRONG>.
-
- The function <STRONG>set_item_init</STRONG> sets a hook to be called at
- menu-post time and each time the selected item changes
- (after the change). <STRONG>item_init</STRONG> returns the current item
- init hook, if any (<STRONG>NULL</STRONG> if there is no such hook).
-
- The function <STRONG>set_item_term</STRONG> sets a hook to be called at
- menu-unpost time and each time the selected item changes
- (before the change). <STRONG>item_term</STRONG> returns the current item
- term hook, if any (<STRONG>NULL</STRONG> if there is no such hook).
-
- The function <STRONG>set_menu_init</STRONG> sets a hook to be called at
- menu-post time and just after the top row on the menu
- changes once it is posted. <STRONG>menu_init</STRONG> returns the current
- menu init hook, if any (<STRONG>NULL</STRONG> if there is no such hook).
-
- The function <STRONG>set_menu_term</STRONG> sets a hook to be called at
- menu-unpost time and just before the top row on the menu
- changes once it is posted. <STRONG>menu_term</STRONG> returns the current
- menu term hook, if any (<STRONG>NULL</STRONG> if there is no such hook).
-
-
-</PRE>
-<H2>RETURN VALUE</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</STRONG>).
-
-
-</PRE>
-<H2>SEE ALSO</H2><PRE>
- <STRONG><A HREF="ncurses.3x.html">curses(3X)</A></STRONG>, <STRONG><A HREF="menu.3x.html">menu(3X)</A></STRONG>.
-
-
-</PRE>
-<H2>NOTES</H2><PRE>
-
-
-</PRE>
-<H2>PORTABILITY</H2><PRE>
- These routines emulate the System V menu 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.
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projects / ncurses.git / blobdiff