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+'\"
+'\" Copyright (c) 1990-1994 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.
+'\" 
+.\" The -*- nroff -*- 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",
+.\"	or "in/out" to describe whether procedure reads or modifies arg,
+.\"	and indent is equivalent to second arg of .IP (shouldn't ever be
+.\"	needed;  use .AS below instead)
+.\"
+.\" .AS ?type? ?name?
+.\"	Give maximum sizes of arguments for setting tab stops.  Type and
+.\"	name are examples of largest possible arguments that will be passed
+.\"	to .AP later.  If args are omitted, default tab stops are used.
+.\"
+.\" .BS
+.\"	Start box enclosure.  From here until next .BE, everything will be
+.\"	enclosed in one large box.
+.\"
+.\" .BE
+.\"	End of box enclosure.
+.\"
+.\" .CS
+.\"	Begin code excerpt.
+.\"
+.\" .CE
+.\"	End code excerpt.
+.\"
+.\" .VS ?version? ?br?
+.\"	Begin vertical sidebar, for use in marking newly-changed parts
+.\"	of man pages.  The first argument is ignored and used for recording
+.\"	the version when the .VS was added, so that the sidebars can be
+.\"	found and removed when they reach a certain age.  If another argument
+.\"	is present, then a line break is forced before starting the sidebar.
+.\"
+.\" .VE
+.\"	End of vertical sidebar.
+.\"
+.\" .DS
+.\"	Begin an indented unfilled display.
+.\"
+.\" .DE
+.\"	End of indented unfilled display.
+.\"
+.\" .SO ?manpage?
+.\"	Start of list of standard options for a Tk widget. The manpage
+.\"	argument defines where to look up the standard options; if
+.\"	omitted, defaults to "options". The options follow on successive
+.\"	lines, in three columns separated by tabs.
+.\"
+.\" .SE
+.\"	End of list of standard options for a Tk widget.
+.\"
+.\" .OP cmdName dbName dbClass
+.\"	Start of description of a specific option.  cmdName gives the
+.\"	option's name as specified in the class command, dbName gives
+.\"	the option's name in the option database, and dbClass gives
+.\"	the option's class in the option database.
+.\"
+.\" .UL arg1 arg2
+.\"	Print arg1 underlined, then print arg2 normally.
+.\"
+.\" .QW arg1 ?arg2?
+.\"	Print arg1 in quotes, then arg2 normally (for trailing punctuation).
+.\"
+.\" .PQ arg1 ?arg2?
+.\"	Print an open parenthesis, arg1 in quotes, then arg2 normally
+.\"	(for trailing punctuation) and then a closing parenthesis.
+.\"
+.\"	# Set up traps and other miscellaneous stuff for Tcl/Tk man pages.
+.if t .wh -1.3i ^B
+.nr ^l \n(.l
+.ad b
+.\"	# Start an argument description
+.de AP
+.ie !"\\$4"" .TP \\$4
+.el \{\
+.   ie !"\\$2"" .TP \\n()Cu
+.   el          .TP 15
+.\}
+.ta \\n()Au \\n()Bu
+.ie !"\\$3"" \{\
+\&\\$1 \\fI\\$2\\fP (\\$3)
+.\".b
+.\}
+.el \{\
+.br
+.ie !"\\$2"" \{\
+\&\\$1	\\fI\\$2\\fP
+.\}
+.el \{\
+\&\\fI\\$1\\fP
+.\}
+.\}
+..
+.\"	# define tabbing values for .AP
+.de AS
+.nr )A 10n
+.if !"\\$1"" .nr )A \\w'\\$1'u+3n
+.nr )B \\n()Au+15n
+.\"
+.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
+.\"	# BS - start boxed text
+.\"	# ^y = starting y location
+.\"	# ^b = 1
+.de BS
+.br
+.mk ^y
+.nr ^b 1u
+.if n .nf
+.if n .ti 0
+.if n \l'\\n(.lu\(ul'
+.if n .fi
+..
+.\"	# BE - end boxed text (draw box now)
+.de BE
+.nf
+.ti 0
+.mk ^t
+.ie n \l'\\n(^lu\(ul'
+.el \{\
+.\"	Draw four-sided box normally, but don't draw top of
+.\"	box if the box started on an earlier page.
+.ie !\\n(^b-1 \{\
+\h'-1.5n'\L'|\\n(^yu-1v'\l'\\n(^lu+3n\(ul'\L'\\n(^tu+1v-\\n(^yu'\l'|0u-1.5n\(ul'
+.\}
+.el \}\
+\h'-1.5n'\L'|\\n(^yu-1v'\h'\\n(^lu+3n'\L'\\n(^tu+1v-\\n(^yu'\l'|0u-1.5n\(ul'
+.\}
+.\}
+.fi
+.br
+.nr ^b 0
+..
+.\"	# VS - start vertical sidebar
+.\"	# ^Y = starting y location
+.\"	# ^v = 1 (for troff;  for nroff this doesn't matter)
+.de VS
+.if !"\\$2"" .br
+.mk ^Y
+.ie n 'mc \s12\(br\s0
+.el .nr ^v 1u
+..
+.\"	# VE - end of vertical sidebar
+.de VE
+.ie n 'mc
+.el \{\
+.ev 2
+.nf
+.ti 0
+.mk ^t
+\h'|\\n(^lu+3n'\L'|\\n(^Yu-1v\(bv'\v'\\n(^tu+1v-\\n(^Yu'\h'-|\\n(^lu+3n'
+.sp -1
+.fi
+.ev
+.\}
+.nr ^v 0
+..
+.\"	# Special macro to handle page bottom:  finish off current
+.\"	# box/sidebar if in box/sidebar mode, then invoked standard
+.\"	# page bottom macro.
+.de ^B
+.ev 2
+'ti 0
+'nf
+.mk ^t
+.if \\n(^b \{\
+.\"	Draw three-sided box if this is the box's first page,
+.\"	draw two sides but no top otherwise.
+.ie !\\n(^b-1 \h'-1.5n'\L'|\\n(^yu-1v'\l'\\n(^lu+3n\(ul'\L'\\n(^tu+1v-\\n(^yu'\h'|0u'\c
+.el \h'-1.5n'\L'|\\n(^yu-1v'\h'\\n(^lu+3n'\L'\\n(^tu+1v-\\n(^yu'\h'|0u'\c
+.\}
+.if \\n(^v \{\
+.nr ^x \\n(^tu+1v-\\n(^Yu
+\kx\h'-\\nxu'\h'|\\n(^lu+3n'\ky\L'-\\n(^xu'\v'\\n(^xu'\h'|0u'\c
+.\}
+.bp
+'fi
+.ev
+.if \\n(^b \{\
+.mk ^y
+.nr ^b 2
+.\}
+.if \\n(^v \{\
+.mk ^Y
+.\}
+..
+.\"	# DS - begin display
+.de DS
+.RS
+.nf
+.sp
+..
+.\"	# DE - end display
+.de DE
+.fi
+.RE
+.sp
+..
+.\"	# SO - start of list of standard options
+.de SO
+'ie '\\$1'' .ds So \\fBoptions\\fR
+'el .ds So \\fB\\$1\\fR
+.SH "STANDARD OPTIONS"
+.LP
+.nf
+.ta 5.5c 11c
+.ft B
+..
+.\"	# SE - end of list of standard options
+.de SE
+.fi
+.ft R
+.LP
+See the \\*(So manual entry for details on the standard options.
+..
+.\"	# OP - start of full description for a single option
+.de OP
+.LP
+.nf
+.ta 4c
+Command-Line Name:	\\fB\\$1\\fR
+Database Name:	\\fB\\$2\\fR
+Database Class:	\\fB\\$3\\fR
+.fi
+.IP
+..
+.\"	# CS - begin code excerpt
+.de CS
+.RS
+.nf
+.ta .25i .5i .75i 1i
+..
+.\"	# CE - end code excerpt
+.de CE
+.fi
+.RE
+..
+.\"	# UL - underline word
+.de UL
+\\$1\l'|0\(ul'\\$2
+..
+.\"	# QW - apply quotation marks to word
+.de QW
+.ie '\\*(lq'"' ``\\$1''\\$2
+.\"" fix emacs highlighting
+.el \\*(lq\\$1\\*(rq\\$2
+..
+.\"	# PQ - apply parens and quotation marks to word
+.de PQ
+.ie '\\*(lq'"' (``\\$1''\\$2)\\$3
+.\"" fix emacs highlighting
+.el (\\*(lq\\$1\\*(rq\\$2)\\$3
+..
+.\"	# QR - quoted range
+.de QR
+.ie '\\*(lq'"' ``\\$1''\\-``\\$2''\\$3
+.\"" fix emacs highlighting
+.el \\*(lq\\$1\\*(rq\\-\\*(lq\\$2\\*(rq\\$3
+..
+.\"	# MT - "empty" string
+.de MT
+.QW ""
+..
+.TH options n 4.4 Tk "Tk Built-In Commands"
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+options \- Standard options supported by widgets
+.BE
+
+.SH DESCRIPTION
+This manual entry describes the common configuration options supported
+by widgets in the Tk toolkit.  Every widget does not necessarily support
+every option (see the manual entries for individual widgets for a list
+of the standard options supported by that widget), but if a widget does
+support an option with one of the names listed below, then the option
+has exactly the effect described below.
+.PP
+In the descriptions below,
+.QW "Command-Line Name"
+refers to the
+switch used in class commands and \fBconfigure\fR widget commands to
+set this value.  For example, if an option's command-line switch is
+\fB\-foreground\fR and there exists a widget \fB.a.b.c\fR, then the
+command
+.CS
+\&\fB.a.b.c\0\0configure\0\0\-foreground black\fR
+.CE
+may be used to specify the value \fBblack\fR for the option in
+the widget \fB.a.b.c\fR.  Command-line switches may be abbreviated,
+as long as the abbreviation is unambiguous.
+.QW "Database Name"
+refers to the option's name in the option database (e.g. in .Xdefaults files).
+.QW "Database Class"
+refers to the option's class value in the option database.
+.OP \-activebackground activeBackground Foreground
+Specifies background color to use when drawing active elements.
+An element (a widget or portion of a widget) is active if the
+mouse cursor is positioned over the element and pressing a mouse button
+will cause some action to occur.
+If strict Motif compliance has been requested by setting the
+\fBtk_strictMotif\fR variable, this option will normally be
+ignored;  the normal background color will be used instead.
+For some elements on Windows and Macintosh systems, the active color
+will only be used while mouse button 1 is pressed over the element.
+.OP \-activeborderwidth activeBorderWidth BorderWidth
+Specifies a non-negative value indicating
+the width of the 3-D border drawn around active elements.  See above for
+definition of active elements.
+The value may have any of the forms acceptable to \fBTk_GetPixels\fR.
+This option is typically only available in widgets displaying more
+than one element at a time (e.g. menus but not buttons).
+.OP \-activeforeground activeForeground Background
+Specifies foreground color to use when drawing active elements.
+See above for definition of active elements.
+.OP \-anchor anchor Anchor
+Specifies how the information in a widget (e.g. text or a bitmap)
+is to be displayed in the widget.
+Must be one of the values \fBn\fR, \fBne\fR, \fBe\fR, \fBse\fR,
+\fBs\fR, \fBsw\fR, \fBw\fR, \fBnw\fR, or \fBcenter\fR.
+For example, \fBnw\fR means display the information such that its
+top-left corner is at the top-left corner of the widget.
+.OP "\-background or \-bg" background Background
+Specifies the normal background color to use when displaying the
+widget.
+.OP \-bitmap bitmap Bitmap
+Specifies a bitmap to display in the widget, in any of the forms
+acceptable to \fBTk_GetBitmap\fR.
+The exact way in which the bitmap is displayed may be affected by
+other options such as \fBanchor\fR or \fBjustify\fR.
+Typically, if this option is specified then it overrides other
+options that specify a textual value to display in the widget
+but this is controlled by the \fBcompound\fR option;
+the \fBbitmap\fR option may be reset to an empty string to re-enable
+a text display.
+In widgets that support both \fBbitmap\fR and \fBimage\fR options,
+\fBimage\fR will usually override \fBbitmap\fR.
+.OP "\-borderwidth or \-bd" borderWidth BorderWidth
+Specifies a non-negative value indicating the width
+of the 3-D border to draw around the outside of the widget (if such a
+border is being drawn;  the \fBrelief\fR option typically determines
+this).  The value may also be used when drawing 3-D effects in the
+interior of the widget.
+The value may have any of the forms acceptable to \fBTk_GetPixels\fR.
+.OP \-cursor cursor Cursor
+Specifies the mouse cursor to be used for the widget.
+The value may have any of the forms acceptable to \fBTk_GetCursor\fR.
+In addition, if an empty string is specified, it indicates that the
+widget should defer to its parent for cursor specification.
+.OP \-compound compound Compound
+Specifies if the widget should display text and bitmaps/images at the
+same time, and if so, where the bitmap/image should be placed relative
+to the text.  Must be one of the values \fBnone\fR, \fBbottom\fR,
+\fBtop\fR, \fBleft\fR, \fBright\fR, or \fBcenter\fR.  For example, the
+(default) value \fBnone\fR specifies that the bitmap or image should
+(if defined) be displayed instead of the text, the value \fBleft\fR
+specifies that the bitmap or image should be displayed to the left of
+the text, and the value \fBcenter\fR specifies that the bitmap or
+image should be displayed on top of the text.
+.OP \-disabledforeground disabledForeground DisabledForeground
+Specifies foreground color to use when drawing a disabled element.
+If the option is specified as an empty string (which is typically the
+case on monochrome displays), disabled elements are drawn with the
+normal foreground color but they are dimmed by drawing them
+with a stippled fill pattern.
+.OP \-exportselection exportSelection ExportSelection
+Specifies whether or not a selection in the widget should also be
+the X selection.
+The value may have any of the forms accepted by \fBTcl_GetBoolean\fR,
+such as \fBtrue\fR, \fBfalse\fR, \fB0\fR, \fB1\fR, \fByes\fR, or \fBno\fR.
+If the selection is exported, then selecting in the widget deselects
+the current X selection, selecting outside the widget deselects any
+widget selection, and the widget will respond to selection retrieval
+requests when it has a selection.  The default is usually for widgets
+to export selections.
+.OP \-font font Font
+Specifies the font to use when drawing text inside the widget.
+The value may have any of the forms described in the \fBfont\fR manual
+page under \fBFONT DESCRIPTION\fR.
+.OP "\-foreground or \-fg" foreground Foreground
+Specifies the normal foreground color to use when displaying the widget.
+.OP \-highlightbackground highlightBackground HighlightBackground
+Specifies the color to display in the traversal highlight region when
+the widget does not have the input focus.
+.OP \-highlightcolor highlightColor HighlightColor
+Specifies the color to use for the traversal highlight rectangle that is
+drawn around the widget when it has the input focus.
+.OP \-highlightthickness highlightThickness HighlightThickness
+Specifies a non-negative value indicating the width of the highlight
+rectangle to draw around the outside of the widget when it has the
+input focus.
+The value may have any of the forms acceptable to \fBTk_GetPixels\fR.
+If the value is zero, no focus highlight is drawn around the widget.
+.OP \-image image Image
+Specifies an image to display in the widget, which must have been
+created with the \fBimage create\fR command.
+Typically, if the \fBimage\fR option is specified then it overrides other
+options that specify a bitmap or textual value to display in the
+widget, though this is controlled by the \fBcompound\fR option;
+the \fBimage\fR option may be reset to an empty string to re-enable
+a bitmap or text display.
+.OP \-insertbackground insertBackground Foreground
+Specifies the color to use as background in the area covered by the
+insertion cursor.  This color will normally override either the normal
+background for the widget (or the selection background if the insertion
+cursor happens to fall in the selection).
+.OP \-insertborderwidth insertBorderWidth BorderWidth
+Specifies a non-negative value indicating the width
+of the 3-D border to draw around the insertion cursor.
+The value may have any of the forms acceptable to \fBTk_GetPixels\fR.
+.OP \-insertofftime insertOffTime OffTime
+Specifies a non-negative integer value indicating the number of
+milliseconds the insertion cursor should remain
+.QW off
+in each blink cycle.
+If this option is zero then the cursor does not blink:  it is on
+all the time.
+.OP \-insertontime insertOnTime OnTime
+Specifies a non-negative integer value indicating the number of
+milliseconds the insertion cursor should remain
+.QW on
+in each blink cycle.
+.OP \-insertwidth insertWidth InsertWidth
+Specifies a  value indicating the total width of the insertion cursor.
+The value may have any of the forms acceptable to \fBTk_GetPixels\fR.
+If a border has been specified for the insertion
+cursor (using the \fBinsertBorderWidth\fR option), the border
+will be drawn inside the width specified by the \fBinsertWidth\fR
+option.
+.OP \-jump jump Jump
+For widgets with a slider that can be dragged to adjust a value,
+such as scrollbars, this option determines when
+notifications are made about changes in the value.
+The option's value must be a boolean of the form accepted by
+\fBTcl_GetBoolean\fR.
+If the value is false, updates are made continuously as the
+slider is dragged.
+If the value is true, updates are delayed until the mouse button
+is released to end the drag;  at that point a single notification
+is made (the value
+.QW jumps
+rather than changing smoothly).
+.OP \-justify justify Justify
+When there are multiple lines of text displayed in a widget, this
+option determines how the lines line up with each other.
+Must be one of \fBleft\fR, \fBcenter\fR, or \fBright\fR.
+\fBLeft\fR means that the lines' left edges all line up, \fBcenter\fR
+means that the lines' centers are aligned, and \fBright\fR means
+that the lines' right edges line up.
+.OP \-orient orient Orient
+For widgets that can lay themselves out with either a horizontal
+or vertical orientation, such as scrollbars, this option specifies
+which orientation should be used.  Must be either \fBhorizontal\fR
+or \fBvertical\fR or an abbreviation of one of these.
+.OP \-padx padX Pad
+Specifies a non-negative value indicating how much extra space
+to request for the widget in the X-direction.
+The value may have any of the forms acceptable to \fBTk_GetPixels\fR.
+When computing how large a window it needs, the widget will
+add this amount to the width it would normally need (as determined
+by the width of the things displayed in the widget);  if the geometry
+manager can satisfy this request, the widget will end up with extra
+internal space to the left and/or right of what it displays inside.
+Most widgets only use this option for padding text:  if they are
+displaying a bitmap or image, then they usually ignore padding
+options.
+.OP \-pady padY Pad
+Specifies a non-negative value indicating how much extra space
+to request for the widget in the Y-direction.
+The value may have any of the forms acceptable to \fBTk_GetPixels\fR.
+When computing how large a window it needs, the widget will add
+this amount to the height it would normally need (as determined by
+the height of the things displayed in the widget);  if the geometry
+manager can satisfy this request, the widget will end up with extra
+internal space above and/or below what it displays inside.
+Most widgets only use this option for padding text:  if they are
+displaying a bitmap or image, then they usually ignore padding
+options.
+.OP \-relief relief Relief
+Specifies the 3-D effect desired for the widget.  Acceptable
+values are \fBraised\fR, \fBsunken\fR, \fBflat\fR, \fBridge\fR,
+\fBsolid\fR, and \fBgroove\fR.
+The value
+indicates how the interior of the widget should appear relative
+to its exterior;  for example, \fBraised\fR means the interior of
+the widget should appear to protrude from the screen, relative to
+the exterior of the widget.
+.OP \-repeatdelay repeatDelay RepeatDelay
+Specifies the number of milliseconds a button or key must be held
+down before it begins to auto-repeat.  Used, for example, on the
+up- and down-arrows in scrollbars.
+.OP \-repeatinterval repeatInterval RepeatInterval
+Used in conjunction with \fBrepeatDelay\fR:  once auto-repeat
+begins, this option determines the number of milliseconds between
+auto-repeats.
+.OP \-selectbackground selectBackground Foreground
+Specifies the background color to use when displaying selected
+items.
+.OP \-selectborderwidth selectBorderWidth BorderWidth
+Specifies a non-negative value indicating the width
+of the 3-D border to draw around selected items.
+The value may have any of the forms acceptable to \fBTk_GetPixels\fR.
+.OP \-selectforeground selectForeground Background
+Specifies the foreground color to use when displaying selected
+items.
+.OP \-setgrid setGrid SetGrid
+Specifies a boolean value that determines whether this widget controls the
+resizing grid for its top-level window.
+This option is typically used in text widgets, where the information
+in the widget has a natural size (the size of a character) and it makes
+sense for the window's dimensions to be integral numbers of these units.
+These natural window sizes form a grid.
+If the \fBsetGrid\fR option is set to true then the widget will
+communicate with the window manager so that when the user interactively
+resizes the top-level window that contains the widget, the dimensions of
+the window will be displayed to the user in grid units and the window
+size will be constrained to integral numbers of grid units.
+See the section \fBGRIDDED GEOMETRY MANAGEMENT\fR in the \fBwm\fR manual
+entry for more details.
+.OP \-takefocus takeFocus TakeFocus
+Determines whether the window accepts the focus during keyboard
+traversal (e.g., Tab and Shift-Tab).
+Before setting the focus to a window, the traversal scripts
+consult the value of the \fBtakeFocus\fR option.
+A value of \fB0\fR means that the window should be skipped entirely
+during keyboard traversal. 
+\fB1\fR means that the window should receive the input
+focus as long as it is viewable (it and all of its ancestors are mapped).
+An empty value for the option means that the traversal scripts make
+the decision about whether or not to focus on the window:  the current
+algorithm is to skip the window if it is
+disabled, if it has no key bindings, or if it is not viewable.
+If the value has any other form, then the traversal scripts take
+the value, append the name of the window to it (with a separator space),
+and evaluate the resulting string as a Tcl script.
+The script must return \fB0\fR, \fB1\fR, or an empty string:  a 
+\fB0\fR or \fB1\fR value specifies whether the window will receive
+the input focus, and an empty string results in the default decision
+described above.
+Note: this interpretation of the option is defined entirely by
+the Tcl scripts that implement traversal:  the widget implementations
+ignore the option entirely, so you can change its meaning if you
+redefine the keyboard traversal scripts.
+.OP \-text text Text
+Specifies a string to be displayed inside the widget.  The way in which
+the string is displayed depends on the particular widget and may be
+determined by other options, such as \fBanchor\fR or \fBjustify\fR.
+.OP \-textvariable textVariable Variable
+Specifies the name of a global variable.  The value of the variable is a text
+string to be displayed inside the widget;  if the variable value changes
+then the widget will automatically update itself to reflect the new value.
+The way in which the string is displayed in the widget depends on the
+particular widget and may be determined by other options, such as
+\fBanchor\fR or \fBjustify\fR.
+.OP \-troughcolor troughColor Background
+Specifies the color to use for the rectangular trough areas
+in widgets such as scrollbars and scales.  This option is ignored for
+scrollbars on Windows (native widget does not recognize this option).
+.OP \-underline underline Underline
+Specifies the integer index of a character to underline in the widget.
+This option is used by the default bindings to implement keyboard
+traversal for menu buttons and menu entries.
+0 corresponds to the first character of the text displayed in the
+widget, 1 to the next character, and so on.
+.OP \-wraplength wrapLength WrapLength
+For widgets that can perform word-wrapping, this option specifies
+the maximum line length.
+Lines that would exceed this length are wrapped onto the next line,
+so that no line is longer than the specified length.
+The value may be specified in any of the standard forms for
+screen distances.
+If this value is less than or equal to 0 then no wrapping is done:  lines
+will break only at newline characters in the text.
+.OP \-xscrollcommand xScrollCommand ScrollCommand
+Specifies the prefix for a command used to communicate with horizontal
+scrollbars.
+When the view in the widget's window changes (or
+whenever anything else occurs that could change the display in a
+scrollbar, such as a change in the total size of the widget's
+contents), the widget will
+generate a Tcl command by concatenating the scroll command and
+two numbers.
+Each of the numbers is a fraction between 0 and 1, which indicates
+a position in the document.  0 indicates the beginning of the document,
+1 indicates the end, .333 indicates a position one third the way through
+the document, and so on.
+The first fraction indicates the first information in the document
+that is visible in the window, and the second fraction indicates
+the information just after the last portion that is visible.
+The command is
+then passed to the Tcl interpreter for execution.  Typically the
+\fBxScrollCommand\fR option consists of the path name of a scrollbar
+widget followed by
+.QW set ,
+e.g.
+.QW ".x.scrollbar set" :
+this will cause
+the scrollbar to be updated whenever the view in the window changes.
+If this option is not specified, then no command will be executed.
+.OP \-yscrollcommand yScrollCommand ScrollCommand
+Specifies the prefix for a command used to communicate with vertical
+scrollbars.  This option is treated in the same way as the
+\fBxScrollCommand\fR option, except that it is used for vertical
+scrollbars and is provided by widgets that support vertical scrolling.
+See the description of \fBxScrollCommand\fR for details
+on how this option is used.
+
+.SH "SEE ALSO"
+colors, cursors, font
+
+.SH KEYWORDS
+class, name, standard option, switch