116 lines
3.7 KiB
Groff
116 lines
3.7 KiB
Groff
.\" $NetBSD: menu_win.3,v 1.10 2003/04/16 13:35:11 wiz Exp $
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.\"
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.\" Copyright (c) 1999
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.\" Brett Lymn - blymn@baea.com.au, brett_lymn@yahoo.com.au
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.\"
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.\" This code is donated to The NetBSD Foundation by the author.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. The name of the Author may not be used to endorse or promote
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.\" products derived from this software without specific prior written
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.\" permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.Dd September 10, 1999
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.Dt MENU_WIN 3
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.Os
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.Sh NAME
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.Nm menu_sub ,
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.Nm menu_win ,
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.Nm scale_menu ,
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.Nm set_menu_sub ,
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.Nm set_menu_win
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.Nd sub-menu handling
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.Sh LIBRARY
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.Lb libmenu
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.Sh SYNOPSIS
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.In menu.h
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.Ft WINDOW *
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.Fn menu_sub "MENU *menu"
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.Ft WINDOW *
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.Fn menu_win "MENU *menu"
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.Ft int
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.Fn scale_menu "MENU *menu" "int *rows" "int *cols"
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.Ft int
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.Fn set_menu_sub "MENU *menu" "WINDOW *sub"
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.Ft int
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.Fn set_menu_win "MENU *menu" "WINDOW *win"
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.Sh DESCRIPTION
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The
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.Fn menu_sub
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function returns a pointer to the window that will be used to post a
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menu into, this pointer is set by the
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.Fn set_menu_sub
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function.
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The
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.Fn menu_win
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function returns a pointer to the window in which the menu subwindow
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will be created when the menu is posted, this pointer is set by the
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.Fn set_menu_win
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function.
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The
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.Fn scale_menu
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function calculates the minimum size a window needs to be to hold the
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items for a given menu, the parameters rows and cols are set to the
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required number of rows and columns respectively.
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.Sh RETURN VALUES
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The functions return one of the following error values:
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.Pp
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.Bl -tag -width E_UNKNOWN_COMMAND -compact
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.It Er E_OK
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The function was successful.
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.It Er E_SYSTEM_ERROR
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There was a system error during the call.
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.It Er E_BAD_ARGUMENT
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One or more of the arguments passed to the function was incorrect.
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.It Er E_POSTED
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The menu is already posted.
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.It Er E_CONNECTED
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An item was already connected to a menu.
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.It Er E_BAD_STATE
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The function was called from within an initialization or termination
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routine.
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.It Er E_NO_ROOM
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The menu does not fit within the subwindow.
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.It Er E_NOT_POSTED
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The menu is not posted
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.It Er E_UNKNOWN_COMMAND
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The menu driver does not recognize the request passed to it.
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.It Er E_NO_MATCH
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The character search failed to find a match.
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.It Er E_NOT_SELECTABLE
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The item could not be selected.
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.It Er E_NOT_CONNECTED
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The item is not connected to a menu.
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.It Er E_REQUEST_DENIED
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The menu driver could not process the request.
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.El
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.Sh SEE ALSO
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.Xr curses 3 ,
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.Xr menus 3
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.Sh NOTES
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The header
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.Pa \*[Lt]menu.h\*[Gt]
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automatically includes both
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.Pa \*[Lt]curses.h\*[Gt]
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and
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.Pa \*[Lt]eti.h\*[Gt] .
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