source: trunk/ncurses/man/mitem_value.3x@ 2787

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29.\" $Id: mitem_value.3x,v 1.6 2002/02/16 22:40:59 tom Exp $
30.TH mitem_value 3X ""
31.SH NAME
32\fBmitem_value\fR - set and get menu item values
33.SH SYNOPSIS
34\fB#include <menu.h>\fR
35.br
36int set_item_value(ITEM *item, bool value);
37.br
38bool item_value(const ITEM *item);
39.br
40.SH DESCRIPTION
41If you turn off the menu option \fBO_ONEVALUE\fR (e.g., with
42\fBset_menu_opts\fR or \fBmenu_opts_off\fR; see \fBmenu_opts\fR(3X)), the menu
43becomes multi-valued; that is, more than one item may simultaneously be
44selected.
45
46In a multi_valued menu, you can used \fBset_item_value\fR to select the
47given menu item (second argument \fBTRUE\fR) or deselect it (second argument
48\fBFALSE\fR).
49.SH RETURN VALUE
50The function \fBset_item_value\fR returns one of the following:
51.TP 5
52\fBE_OK\fR
53The routine succeeded.
54.TP 5
55\fBE_SYSTEM_ERROR\fR
56System error occurred (see \fBerrno\fR).
57.TP 5
58\fBE_REQUEST_DENIED\fR
59The menu driver could not process the request.
60.SH SEE ALSO
61\fBcurses\fR(3X), \fBmenu\fR(3X).
62.SH NOTES
63The header file \fB<menu.h>\fR automatically includes the header file
64\fB<curses.h>\fR.
65.SH PORTABILITY
66These routines emulate the System V menu library. They were not supported on
67Version 7 or BSD versions.
68.SH AUTHORS
69Juergen Pfeifer. Manual pages and adaptation for new curses by Eric
70S. Raymond.
71.\"#
72.\"# The following sets edit modes for GNU EMACS
73.\"# Local Variables:
74.\"# mode:nroff
75.\"# fill-column:79
76.\"# End:
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