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28 .\"***************************************************************************
30 .\" $Id: mitem_current.3x,v 1.13 2010/12/04 18:40:45 tom Exp $
31 .TH mitem_current 3X ""
33 \fBmitem_current\fR \- set and get current_menu_item
35 \fB#include <menu.h>\fR
37 int set_current_item(MENU *menu, const ITEM *item);
39 ITEM *current_item(const MENU *menu);
41 int set_top_row(MENU *menu, int row);
43 int top_row(const MENU *menu);
45 int item_index(const ITEM *item);
48 The function \fBset_current_item\fR sets the current item (the item on which
49 the menu cursor is positioned). \fBcurrent_item\fR returns a pointer to the
50 current item in the given menu.
52 The function \fBset_top_row\fR sets the top row of the menu to show the given
53 row (the top row is initially 0, and is reset to this value whenever the
54 \fBO_ROWMAJOR\fR option is toggled). The item leftmost on the given row
55 becomes current. The function \fBtop_row\fR returns the number of the top menu
58 The function \fBitem_index\fR returns the (zero-origin) index of \fIitem\fR in
59 the menu's item pointer list.
61 \fBcurrent_item\fR returns a pointer (which may be \fBNULL\fR).
62 It does not set errno.
64 \fBtop_row\fR and \fBitem_index\fR return \fBERR\fR (the general \fBcurses\fR
65 error value) if their \fImenu\fP parameter is \fBNULL\fP.
67 \fBset_current_item\fR and \fBset_top_row\fR return one of the following:
70 The routine succeeded.
73 Routine detected an incorrect or out-of-range argument.
76 Routine was called from an initialization or termination function.
79 No items are connected to the menu.
82 System error occurred (see \fBerrno\fR).
84 \fBcurses\fR(3X), \fBmenu\fR(3X).
86 The header file \fB<menu.h>\fR automatically includes the header file
89 These routines emulate the System V menu library. They were not supported on
90 Version 7 or BSD versions.
92 The SVr4 menu library documentation specifies the \fBtop_row\fR and
93 \fBindex_item\fR error value as \-1 (which is the value of \fBERR\fR).
95 Juergen Pfeifer. Manual pages and adaptation for new curses by Eric