ttk::scrollbar - Control the viewport of a scrollable widget

ttk::scrollbar  widgets  are  typically  linked  to an associated window that displays a document of some
       sort, such as a file being edited or a drawing.  A scrollbar displays a thumb in the  middle  portion  of
       the  scrollbar, whose position and size provides information about the portion of the document visible in
       the associated window.  The thumb may be dragged by the user to control the visible region.  Depending on
       the theme, two or more arrow buttons may also be present; these are used to scroll the visible region  in
       discrete units.

              set f [frame .f]
              ttk::scrollbar $f.hsb -orient horizontal -command [list $f.t xview]
              ttk::scrollbar $f.vsb -orient vertical -command [list $f.t yview]
              text $f.t -xscrollcommand [list $f.hsb set] -yscrollcommand [list $f.vsb set]
              grid $f.t -row 0 -column 0 -sticky nsew
              grid $f.vsb -row 0 -column 1 -sticky nsew
              grid $f.hsb -row 1 -column 0 -sticky nsew
              grid columnconfigure $f 0 -weight 1
              grid rowconfigure $f 0 -weight 1
              pack $f

       The following widget commands are used internally by the TScrollbar widget class bindings.

       pathNamedeltadeltaXdeltaY
              Returns a real number indicating the fractional change in the scrollbar setting  that  corresponds
              to  a  given  change  in  thumb position.  For example, if the scrollbar is horizontal, the result
              indicates how much the scrollbar setting must change to move the thumb deltaX pixels to the  right
              (deltaY is ignored in this case).  If the scrollbar is vertical, the result indicates how much the
              scrollbar  setting must change to move the thumb deltaY pixels down.  The arguments and the result
              may be zero or negative.

       pathNamefractionxy
              Returns a real number between 0 and 1 indicating where the point given by x  and  y  lies  in  the
              trough  area  of  the  scrollbar,  where  0.0 corresponds to the top or left of the trough and 1.0
              corresponds to the bottom or right.  X and y are  pixel  coordinates  relative  to  the  scrollbar
              widget.  If x and y refer to a point outside the trough, the closest point in the trough is used.

       scrollbar, widget

Tk                                                     8.5                                   ttk::scrollbar(3tk)

       ttk::scrollbar - Control the viewport of a scrollable widget

       When the user interacts with the scrollbar, for example by dragging the thumb, the scrollbar notifies the
       associated widget that it must change its view.  The scrollbar makes the notification by evaluating a Tcl
       command generated from the scrollbar's -command option.  The command may take any of the following forms.
       In each case, prefix is the contents of the -command option, which usually has a form like .tyviewprefixmovetofractionFraction  is  a  real number between 0 and 1.  The widget should adjust its view so that the point
              given by fraction appears at the beginning of the widget.  If fraction  is  0  it  refers  to  the
              beginning  of  the  document.  1.0 refers to the end of the document, 0.333 refers to a point one-
              third of the way through the document, and so on.

       prefixscrollnumberpages
              The widget should adjust its view by number pages.  It is up to the widget to define  the  meaning
              of  a page;  typically it is slightly less than what fits in the window, so that there is a slight
              overlap between the old and new views.  Number is either 1,  which  means  the  next  page  should
              become visible, or -1, which means that the previous page should become visible.

       prefixscrollnumberunits
              The  widget  should  adjust its view by number units.  The units are defined in whatever way makes
              sense for the widget, such as characters or lines in a text widget.  Number  is  either  1,  which
              means  one  unit should scroll off the top or left of the window, or -1, which means that one unit
              should scroll off the bottom or right of the window.

       ttk::widget(3tk), scrollbar(3tk)

-class-cursor-style-takefocus

       See the ttk_widget manual entry for details on the standard options.

       The class name for a ttk::scrollbar is TScrollbar.

       Dynamic states: active, disabled.

       TScrollbar (or more specifically Vertical.TScrollbar and Horizontal.TScrollbar) styling options that  are
       configurable with ttk::style are:

       -arrowcolorcolor-arrowsizeamount-backgroundcolor-bordercolorcolor-darkcolorcolor (color of the dark part of the 3D relief)
       -foregroundcolor-gripsizesize (number of screen units)
       -lightcolorcolor (color of the light part of the 3D relief)
       -troughcolorcolor

       Some options are only available for specific themes.

       See the ttk::style manual page for information on how to configure ttk styles.

ttk::scrollbarpathName ?options...?
________________________________________________________________________________________________________________

       In addition to the standard cget, configure, identifyelement, instate, state  and  style  commands  (see
       ttk::widget), scrollbar widgets support the following additional commands:

       pathNameget
              Returns  the scrollbar settings in the form of a list whose elements are the arguments to the most
              recent set widget command.

       pathNamesetfirstlast
              This command is normally invoked by the scrollbar's associated widget from an  -xscrollcommand  or
              -yscrollcommand  callback.   Specifies the visible range to be displayed.  first and last are real
              fractions between 0 and 1.

       The scrollbar automatically sets the disabled state bit.  when the entire range is visible (range is  0.0
       to  1.0),  and  clears  it  otherwise.   It  also  sets  the active and pressed state flags of individual
       elements, based on the position and state of the mouse pointer.

       Command-Line Name:-command
       Database Name:  command
       Database Class: Command

              A  Tcl  script  prefix to evaluate to change the view in the widget associated with the scrollbar.
              Additional arguments are appended to the value of this option, as described in SCROLLINGCOMMANDS
              below, whenever the user requests a view change by manipulating the scrollbar.

              This  option  typically consists of a two-element list, containing the name of a scrollable widget
              followed by either xview (for horizontal scrollbars) or yview (for vertical scrollbars).

       Command-Line Name:-orient
       Database Name:  orient
       Database Class: Orient

              One of horizontal or vertical.  Specifies the orientation of the scrollbar.