'\" te
.\" Copyright 1989 AT&T
.\" Portions Copyright (c) 1996, Sun Microsystems, Inc. All Rights Reserved.
.TH menu_hook 3CURSES "31 Dec 1996" "SunOS 5.11" "Curses Library Functions"
.SH NAME
menu_hook, set_item_init, item_init, set_item_term, item_term, set_menu_init, menu_init, set_menu_term, menu_term \- assign application-specific routines for automatic invocation by menus
.SH SYNOPSIS
.LP
.nf
\fBcc\fR [ \fIflag\fR... ] \fIfile\fR... \fB-lmenu\fR \fB -lcurses \fR [ \fIlibrary\fR... ]
#include <menu.h>

\fBint\fR \fBset_item_init\fR(\fBMENU *\fR\fImenu\fR, \fBvoid (*func)(MENU *)\fR);
.fi

.LP
.nf
\fBint\fR \fBset_item_term\fR(\fBMENU *\fR\fImenu\fR, \fBvoid (*func)(MENU *)\fR);
.fi

.LP
.nf
\fBvoid\fR \fBitem_term\fR(\fBMENU *\fR\fImenu\fR);
.fi

.LP
.nf
\fBint\fR \fBset_menu_init\fR(\fBMENU *\fR\fImenu\fR, \fBvoid (*func)(MENU *)\fR);
.fi

.LP
.nf
\fBvoid\fR \fBmenu_init\fR(\fBMENU *\fR\fImenu\fR);
.fi

.LP
.nf
\fBint\fR \fBset_menu_term\fR(\fBMENU *\fR\fImenu\fR, \fBvoid (*func)(MENU *)\fR);
.fi

.LP
.nf
\fBvoid\fR \fBmenu_term\fR(\fBMENU *\fR\fImenu\fR);
.fi

.SH DESCRIPTION
.sp
.LP
\fBset_item_init()\fR assigns the application-defined function to be called when the \fImenu\fR is posted and just after the current item changes. \fBitem_init()\fR returns a pointer to the item initialization routine, if any, called when the \fImenu\fR is posted and just after the current item changes.
.sp
.LP
\fBset_item_term()\fR assigns an application-defined function to be called when the \fImenu\fR is unposted and just before the current item changes. \fBitem_term()\fR returns a pointer to the termination function, if any, called when the \fImenu\fR is unposted and just before the current item changes.
.sp
.LP
\fBset_menu_init()\fR assigns an application-defined function to be called when the \fImenu\fR is posted and just after the top row changes on a posted menu. \fBmenu_init()\fR returns a pointer to the menu initialization routine, if any, called when the \fImenu\fR is posted and just after the top row changes on a posted menu.
.sp
.LP
\fBset_menu_term()\fR assigns an application-defined function to be called when the \fImenu\fR is unposted and just before the top row changes on a posted menu. \fBmenu_term()\fR returns a pointer to the menu termination routine, if any, called when the \fImenu\fR is unposted and just before the top row changes on a posted menu.
.SH RETURN VALUES
.sp
.LP
Routines that return pointers always return \fBNULL\fR on error. Routines that return an integer return one of the following: 
.sp
.ne 2
.mk
.na
\fBE_OK\fR
.ad
.RS 18n
.rt  
The routine returned successfully.
.RE

.sp
.ne 2
.mk
.na
\fBE_SYSTEM_ERROR\fR
.ad
.RS 18n
.rt  
System error.
.RE

.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(5) for descriptions of the following attributes:
.sp

.sp
.TS
tab() box;
cw(2.75i) |cw(2.75i) 
lw(2.75i) |lw(2.75i) 
.
ATTRIBUTE TYPEATTRIBUTE VALUE
_
MT-LevelUnsafe
.TE

.SH SEE ALSO
.sp
.LP
\fBcurses\fR(3CURSES), \fBmenus\fR(3CURSES), \fBattributes\fR(5)
.SH NOTES
.sp
.LP
The header \fB<menu.h>\fR automatically includes the headers  \fB<eti.h>\fR and \fB<curses.h>\fR\&.