NAME¶
ttk::scale - Create and manipulate a scale widget
SYNOPSIS¶
ttk::scale pathName ?
options...?
DESCRIPTION¶
A
ttk::scale widget is typically used to control the numeric value of a
linked variable that varies uniformly over some range. A scale displays a
slider that can be moved along over a
trough, with the relative
position of the slider over the trough indicating the value of the variable.
STANDARD OPTIONS¶
-class -cursor -style
-takefocus
See the
ttk_widget manual entry for details on the standard options.
Command-Line Name: -command
Database Name: command
Database Class: Command
- Specifies the prefix of a Tcl command to invoke whenever
the scale's value is changed via a widget command. The actual command
consists of this option followed by a space and a real number indicating
the new value of the scale.
Command-Line Name: -from
Database Name: from
Database Class: From
- A real value corresponding to the left or top end of the
scale.
Command-Line Name: -length
Database Name: length
Database Class: Length
- Specifies the desired long dimension of the scale in screen
units (i.e. any of the forms acceptable to Tk_GetPixels). For
vertical scales this is the scale's height; for horizontal scales it is
the scale's width.
Command-Line Name: -orient
Database Name: orient
Database Class: Orient
- Specifies which orientation whether the widget should be
laid out horizontally or vertically. Must be either horizontal or
vertical or an abbreviation of one of these.
Command-Line Name: -to
Database Name: to
Database Class: To
- Specifies a real value corresponding to the right or bottom
end of the scale. This value may be either less than or greater than the
from option.
Command-Line Name: -value
Database Name: value
Database Class: Value
- Specifies the current floating-point value of the
variable.
Command-Line Name: -variable
Database Name: variable
Database Class: Variable
- Specifies the name of a global variable to link to the
scale. Whenever the value of the variable changes, the scale will update
to reflect this value. Whenever the scale is manipulated interactively,
the variable will be modified to reflect the scale's new value.
- pathName cget option
- Returns the current value of the specified option;
see ttk::widget(3tk).
- pathName configure ?option? ?value
option value ...?
- Modify or query widget options; see
ttk::widget(3tk).
- pathName get ?x y?
- Get the current value of the -value option, or the
value corresponding to the coordinates x,y if they are specified.
X and y are pixel coordinates relative to the scale widget
origin.
- pathName identify x y
- Returns the name of the element at position x,
y. See ttk::widget(3tk).
- pathName instate statespec
?script?
- Test the widget state; see ttk::widget(3tk).
- pathName set value
- Set the value of the widget (i.e. the -value option)
to value. The value will be clipped to the range given by the
-from and -to options. Note that setting the linked variable
(i.e. the variable named in the -variable option) does not cause
such clipping.
- pathName state ?stateSpec?
- Modify or query the widget state; see
ttk::widget(3tk).
INTERNAL COMMANDS¶
- pathName coords ?value?
- Get the coordinates corresponding to value, or the
coordinates corresponding to the current value of the -value option
if value is omitted.
SEE ALSO¶
ttk::widget(3tk), scale(3tk)
KEYWORDS¶
scale, slider, trough, widget