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30 .\" $Id: menu.3x,v 1.21 2010/12/04 18:40:45 tom Exp $
31 .TH menu 3X ""
32 .SH NAME
33 \fBmenu\fR \- curses extension for programming menus
34 .SH SYNOPSIS
35 \fB#include <menu.h>\fR
36 .br
37 .SH DESCRIPTION
38 The \fBmenu\fR library provides terminal-independent facilities for composing
39 menu systems on character-cell terminals. The library includes: item routines,
40 which create and modify menu items; and menu routines, which group items into
41 menus, display menus on the screen, and handle interaction with the user.
42 .PP
43 The \fBmenu\fR library uses the \fBcurses\fR libraries, and a curses
44 initialization routine such as \fBinitscr\fR must be called before using any of
45 these functions. To use the \fBmenu\fR library, link with the options
46 \fB\-lmenu \-lcurses\fR.
47 .
48 .SS Current Default Values for Item Attributes
49 .
50 The \fBmenu\fR library maintains a default value for item attributes. You can
51 get or set this default by calling the appropriate \fBget_\fR or \fBset_\fR
52 routine with a \fBNULL\fR item pointer. Changing this default with a
53 \fBset_\fR function affects future item creations, but does not change the
54 rendering of items already created.
55 .
56 .SS Routine Name Index
57 .
58 The following table lists each \fBmenu\fR routine and the name of
59 the manual page on which it is described.
60 .
61 .TS
62 l l .
63 \fBcurses\fR Routine Name Manual Page Name
64 =
65 current_item \fBmitem_current\fR(3X)
66 free_item \fBmitem_new\fR(3X)
67 free_menu \fBmenu_new\fR(3X)
68 item_count \fBmenu_items\fR(3X)
69 item_description \fBmitem_name\fR(3X)
70 item_index \fBmitem_current\fR(3X)
71 item_init \fBmenu_hook\fR(3X)
72 item_name \fBmitem_name\fR(3X)
73 item_opts \fBmitem_opts\fR(3X)
74 item_opts_off \fBmitem_opts\fR(3X)
75 item_opts_on \fBmitem_opts\fR(3X)
76 item_term \fBmenu_hook\fR(3X)
77 item_userptr \fBmitem_userptr\fR(3X)
78 item_value \fBmitem_value\fR(3X)
79 item_visible \fBmitem_visible\fR(3X)
80 menu_back \fBmenu_attributes\fR(3X)
81 menu_driver \fBmenu_driver\fR(3X)
82 menu_fore \fBmenu_attributes\fR(3X)
83 menu_format \fBmenu_format\fR(3X)
84 menu_grey \fBmenu_attributes\fR(3X)
85 menu_init \fBmenu_hook\fR(3X)
86 menu_items \fBmenu_items\fR(3X)
87 menu_mark \fBmenu_mark\fR(3X)
88 menu_opts \fBmenu_opts\fR(3X)
89 menu_opts_off \fBmenu_opts\fR(3X)
90 menu_opts_on \fBmenu_opts\fR(3X)
91 menu_pad \fBmenu_attributes\fR(3X)
92 menu_pattern \fBmenu_pattern\fR(3X)
93 menu_request_by_name \fBmenu_requestname\fR(3X)
94 menu_request_name \fBmenu_requestname\fR(3X)
95 menu_spacing \fBmenu_spacing\fR(3X)
96 menu_sub \fBmenu_win\fR(3X)
97 menu_term \fBmenu_hook\fR(3X)
98 menu_userptr \fBmenu_userptr\fR(3X)
99 menu_win \fBmenu_win\fR(3X)
100 new_item \fBmitem_new\fR(3X)
101 new_menu \fBmenu_new\fR(3X)
102 pos_menu_cursor \fBmenu_cursor\fR(3X)
103 post_menu \fBmenu_post\fR(3X)
104 scale_menu \fBmenu_win\fR(3X)
105 set_current_item \fBmitem_current\fR(3X)
106 set_item_init \fBmenu_hook\fR(3X)
107 set_item_opts \fBmitem_opts\fR(3X)
108 set_item_term \fBmenu_hook\fR(3X)
109 set_item_userptr \fBmitem_userptr\fR(3X)
110 set_item_value \fBmitem_value\fR(3X)
111 set_menu_back \fBmenu_attributes\fR(3X)
112 set_menu_fore \fBmenu_attributes\fR(3X)
113 set_menu_format \fBmenu_format\fR(3X)
114 set_menu_grey \fBmenu_attributes\fR(3X)
115 set_menu_init \fBmenu_hook\fR(3X)
116 set_menu_items \fBmenu_items\fR(3X)
117 set_menu_mark \fBmenu_mark\fR(3X)
118 set_menu_opts \fBmitem_opts\fR(3X)
119 set_menu_pad \fBmenu_attributes\fR(3X)
120 set_menu_pattern \fBmenu_pattern\fR(3X)
121 set_menu_spacing \fBmenu_spacing\fR(3X)
122 set_menu_sub \fBmenu_win\fR(3X)
123 set_menu_term \fBmenu_hook\fR(3X)
124 set_menu_userptr \fBmenu_userptr\fR(3X)
125 set_menu_win \fBmenu_win\fR(3X)
126 set_top_row \fBmitem_current\fR(3X)
127 top_row \fBmitem_current\fR(3X)
128 unpost_menu \fBmenu_post\fR(3X)
129 .TE
130 .SH RETURN VALUE
131 Routines that return pointers return \fBNULL\fR on error. Routines that return
132 an integer return one of the following error codes:
133 .TP 5
134 .B E_OK
135 The routine succeeded.
136 .TP 5
137 .B E_BAD_ARGUMENT
138 Routine detected an incorrect or out-of-range argument.
139 .TP 5
140 .B E_BAD_STATE
141 Routine was called from an initialization or termination function.
142 .TP 5
143 .B E_NO_MATCH
144 Character failed to match.
145 .TP 5
146 .B E_NO_ROOM
147 Menu is too large for its window.
148 .TP 5
149 .B E_NOT_CONNECTED
150 No items are connected to the menu.
151 .TP 5
152 .B E_NOT_POSTED
153 The menu has not been posted.
154 .TP 5
155 .B E_NOT_SELECTABLE
156 The designated item cannot be selected.
157 .TP 5
158 .B E_POSTED
159 The menu is already posted.
160 .TP 5
161 .B E_REQUEST_DENIED
162 The menu driver could not process the request.
163 .TP 5
164 .B E_SYSTEM_ERROR
165 System error occurred (see \fBerrno\fR).
166 .TP 5
167 .B E_UNKNOWN_COMMAND
168 The menu driver code saw an unknown request code.
169 .SH SEE ALSO
170 \fBcurses\fR(3X) and related pages whose names begin "menu_" for detailed
171 descriptions of the entry points.
172 .SH NOTES
173 The header file \fB<menu.h>\fR automatically includes the header files
174 \fB<curses.h>\fR and \fB<eti.h>\fR.
175 .PP
176 In your library list, libmenu.a should be before libncurses.a; that is,
177 you want to say `\-lmenu \-lncurses', not the other way around (which would
178 usually give a link-error).
179 .SH PORTABILITY
180 These routines emulate the System V menu library. They were not supported on
181 Version 7 or BSD versions.
182 .SH AUTHORS
183 Juergen Pfeifer. Manual pages and adaptation for ncurses by Eric
184 S. Raymond.
185 .SH SEE ALSO
186 This describes \fBncurses\fR
187 version @NCURSES_MAJOR@.@NCURSES_MINOR@ (patch @NCURSES_PATCH@).