'\"
'\" Copyright (c) 1994 The Regents of the University of California.
'\" Copyright (c) 1994-1996 Sun Microsystems, Inc.
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\" 
'\" RCS: @(#) $Id: focusNext.n,v 1.2 2003/11/24 05:09:59 bbbush Exp $
'\" 
'\" The definitions below are for supplemental macros used in Tcl/Tk
'\" manual entries.
'\"
'\" .AP type name in/out ?indent?
'\"	Start paragraph describing an argument to a library procedure.
'\"	type is type of argument (int, etc.), in/out is either "in", "out",
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'\"
'\" .AS ?type? ?name?
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'\"	Start box enclosure.  From here until next .BE, everything will be
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'\"	End of vertical sidebar.
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'\"	Begin an indented unfilled display.
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'\"	End of list of standard options for a Tk widget.
'\"
'\" .OP cmdName dbName dbClass
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'\"
'\" RCS: @(#) $Id: focusNext.n,v 1.2 2003/11/24 05:09:59 bbbush Exp $
'\"
'\"	# Set up traps and other miscellaneous stuff for Tcl/Tk man pages.
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.ie !"\\$4"" .TP \\$4
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\&\\$1	\\fI\\$2\\fP	(\\$3)
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\&\\$1	\\fI\\$2\\fP
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\&\\fI\\$1\\fP
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.nr )A 10n
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.\"
.if !"\\$2"" .nr )B \\w'\\$2'u+\\n()Au+3n
.nr )C \\n()Bu+\\w'(in/out)'u+2n
..
.AS Tcl_Interp Tcl_CreateInterp in/out
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\h'-1.5n'\L'|\\n(^yu-1v'\h'\\n(^lu+3n'\L'\\n(^tu+1v-\\n(^yu'\l'|0u-1.5n\(ul'
.\}
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..
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..
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See the \\fBoptions\\fR manual entry for details on the standard options.
..
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Command-Line Name:	\\fB\\$1\\fR
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\\$1\l'|0\(ul'\\$2
..
.TH tk_focusNext 3tk 4.0 Tk "Tk Built-In Commands"
.BS
'\" Note:  do not modify the .SH NAME line immediately below!
.SH NAME
tk_focusNext, tk_focusPrev, tk_focusFollowsMouse \- 管理輸入聚焦的實用過程
.SH "總覽 SYNOPSIS"
\fBtk_focusNext \fIwindow\fR
.sp
\fBtk_focusPrev \fIwindow\fR
.sp
\fBtk_focusFollowsMouse\fR
.BE

.SH "描述 DESCRIPTION"
.PP
\fBtk_focusNext\fR是用於鍵盤遍歷的一個實用過程。它返回在聚焦次序上在 \fIwindow\fR後面的“下一個”視窗。聚焦次序由視窗的堆疊次序和視窗的層次結構來決定。在兄弟視窗之間，聚焦次序同於堆疊次序，最低的視窗是第一個。如果一個視窗有子視窗，則首先訪問這個視窗，隨後(遞迴的)是它的子視窗，隨後是它的下一個兄弟視窗。跳過除了 \fIwindow\fR 之外的頂層視窗，所以 \fBtk_focusNext\fR 從不返回與 \fIwindow \fR在不同的頂層視窗中的視窗。
.PP
在計算下一個視窗之後，\fBtk_focusNext\fR 檢查這個視窗的 \fB-takefocus\fR選項來檢視是否跳過它。如果它不接受聚焦，\fBtk_focusNext\fR 繼續到在聚焦次序上的下一個視窗上，直到最終找到接受聚焦的一個視窗或回到 \fIwindow\fR。
.PP
\fBtk_focusPrev\fR 類似於 \fBtk_focusNext\fR，但返回在聚焦次序上在\fIwindow\fR 緊前面的視窗。
.PP
\fBtk_focusFollowsMouse\fR 把這個應用的聚焦模式改變成隱含模式，此時在滑鼠下的視窗得到聚焦。在呼叫這個過程之後，在滑鼠進入一個視窗的時候，Tk 將自動給予它輸入聚焦。可以使用 \fBfocus\fR 命令來移動游標到不在滑鼠下的一個視窗上，但是一旦滑鼠移動到一個新視窗上聚焦就會跳到那個視窗上。注意: 現在沒有內建的對使應用返回顯式的聚焦模式的支援；要這樣做你必須寫一個刪除 \fBtk_focusFollowsMouse\fR 所建立的繫結的指令碼。

.SH "關鍵字 KEYWORDS"
focus, keyboard traversal, top-level

.SH "[中文版維護人]"
.B 寒蟬退士
.SH "[中文版最新更新]"
.B 2001/12/28
.SH "《中國 Linux 論壇 man 手冊頁翻譯計劃》:"
.BI http://cmpp.linuxforum.net
.SH "跋"
.br
本頁面中文版由中文 man 手冊頁計劃提供。
.br
中文 man 手冊頁計劃：\fBhttps://github.com/man-pages-zh/manpages-zh\fR