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30 .\" $Id: menu.3x,v 1.26 2019/01/20 20:32:23 tom Exp $
41 \fBmenu\fR \- curses extension for programming menus
43 \fB#include <menu.h>\fR
46 The \fBmenu\fR library provides terminal-independent facilities for composing
47 menu systems on character-cell terminals.
48 The library includes: item routines,
49 which create and modify menu items; and menu routines, which group items into
50 menus, display menus on the screen, and handle interaction with the user.
52 The \fBmenu\fR library uses the \fBcurses\fR libraries, and a curses
53 initialization routine such as \fBinitscr\fR must be called before using any of
55 To use the \fBmenu\fR library, link with the options
56 \fB\-lmenu \-lcurses\fR.
58 .SS Current Default Values for Item Attributes
60 The \fBmenu\fR library maintains a default value for item attributes.
62 get or set this default by calling the appropriate \fBget_\fR or \fBset_\fR
63 routine with a \fBNULL\fR item pointer.
64 Changing this default with a
65 \fBset_\fR function affects future item creations, but does not change the
66 rendering of items already created.
68 .SS Routine Name Index
70 The following table lists each \fBmenu\fR routine and the name of
71 the manual page on which it is described.
75 \fBcurses\fR Routine Name Manual Page Name
77 current_item \fBmitem_current\fR(3X)
78 free_item \fBmitem_new\fR(3X)
79 free_menu \fBmenu_new\fR(3X)
80 item_count \fBmenu_items\fR(3X)
81 item_description \fBmitem_name\fR(3X)
82 item_index \fBmitem_current\fR(3X)
83 item_init \fBmenu_hook\fR(3X)
84 item_name \fBmitem_name\fR(3X)
85 item_opts \fBmitem_opts\fR(3X)
86 item_opts_off \fBmitem_opts\fR(3X)
87 item_opts_on \fBmitem_opts\fR(3X)
88 item_term \fBmenu_hook\fR(3X)
89 item_userptr \fBmitem_userptr\fR(3X)
90 item_value \fBmitem_value\fR(3X)
91 item_visible \fBmitem_visible\fR(3X)
92 menu_back \fBmenu_attributes\fR(3X)
93 menu_driver \fBmenu_driver\fR(3X)
94 menu_fore \fBmenu_attributes\fR(3X)
95 menu_format \fBmenu_format\fR(3X)
96 menu_grey \fBmenu_attributes\fR(3X)
97 menu_init \fBmenu_hook\fR(3X)
98 menu_items \fBmenu_items\fR(3X)
99 menu_mark \fBmenu_mark\fR(3X)
100 menu_opts \fBmenu_opts\fR(3X)
101 menu_opts_off \fBmenu_opts\fR(3X)
102 menu_opts_on \fBmenu_opts\fR(3X)
103 menu_pad \fBmenu_attributes\fR(3X)
104 menu_pattern \fBmenu_pattern\fR(3X)
105 menu_request_by_name \fBmenu_requestname\fR(3X)
106 menu_request_name \fBmenu_requestname\fR(3X)
107 menu_spacing \fBmenu_spacing\fR(3X)
108 menu_sub \fBmenu_win\fR(3X)
109 menu_term \fBmenu_hook\fR(3X)
110 menu_userptr \fBmenu_userptr\fR(3X)
111 menu_win \fBmenu_win\fR(3X)
112 new_item \fBmitem_new\fR(3X)
113 new_menu \fBmenu_new\fR(3X)
114 pos_menu_cursor \fBmenu_cursor\fR(3X)
115 post_menu \fBmenu_post\fR(3X)
116 scale_menu \fBmenu_win\fR(3X)
117 set_current_item \fBmitem_current\fR(3X)
118 set_item_init \fBmenu_hook\fR(3X)
119 set_item_opts \fBmitem_opts\fR(3X)
120 set_item_term \fBmenu_hook\fR(3X)
121 set_item_userptr \fBmitem_userptr\fR(3X)
122 set_item_value \fBmitem_value\fR(3X)
123 set_menu_back \fBmenu_attributes\fR(3X)
124 set_menu_fore \fBmenu_attributes\fR(3X)
125 set_menu_format \fBmenu_format\fR(3X)
126 set_menu_grey \fBmenu_attributes\fR(3X)
127 set_menu_init \fBmenu_hook\fR(3X)
128 set_menu_items \fBmenu_items\fR(3X)
129 set_menu_mark \fBmenu_mark\fR(3X)
130 set_menu_opts \fBmitem_opts\fR(3X)
131 set_menu_pad \fBmenu_attributes\fR(3X)
132 set_menu_pattern \fBmenu_pattern\fR(3X)
133 set_menu_spacing \fBmenu_spacing\fR(3X)
134 set_menu_sub \fBmenu_win\fR(3X)
135 set_menu_term \fBmenu_hook\fR(3X)
136 set_menu_userptr \fBmenu_userptr\fR(3X)
137 set_menu_win \fBmenu_win\fR(3X)
138 set_top_row \fBmitem_current\fR(3X)
139 top_row \fBmitem_current\fR(3X)
140 unpost_menu \fBmenu_post\fR(3X)
143 Routines that return pointers return \fBNULL\fR on error.
145 an integer return one of the following error codes:
148 The routine succeeded.
151 Routine detected an incorrect or out-of-range argument.
154 Routine was called from an initialization or termination function.
157 Character failed to match.
160 Menu is too large for its window.
163 No items are connected to the menu.
166 The menu has not been posted.
169 The designated item cannot be selected.
172 The menu is already posted.
175 The menu driver could not process the request.
178 System error occurred (see \fBerrno\fR(3)).
181 The menu driver code saw an unknown request code.
183 The header file \fB<menu.h>\fR automatically includes the header files
184 \fB<curses.h>\fR and \fB<eti.h>\fR.
186 In your library list, libmenu.a should be before libncurses.a; that is,
187 you should say \*(``\-lmenu \-lncurses\*('', not the other way around
188 (which would give a link-error when using static libraries).
190 These routines emulate the System V menu library.
191 They were not supported on
192 Version 7 or BSD versions.
194 The menu facility was documented in SVr4.2 in
195 \fICharacter User Interface Programming (UNIX SVR4.2)\fP.
197 It is not part of X/Open Curses.
199 Aside from ncurses, there are few implementations:
201 systems based on SVr4 source code, e.g., Solaris.
206 Manual pages and adaptation for ncurses by Eric S. Raymond.
208 \fBcurses\fR(3X) and related pages whose names begin \*(``menu_\*(''
209 for detailed descriptions of the entry points.
211 This describes \fBncurses\fR
212 version @NCURSES_MAJOR@.@NCURSES_MINOR@ (patch @NCURSES_PATCH@).