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21.13. The Scale Widget
Create a "slider" widget representing a numeric value with the Scale method.
$parent->Scale(options);
The standard configuration options that apply to Scale are: -activebackground, -background, -bg, -borderwidth, -bw, -cursor, -font, -foreground, -fg, -highlight-background, -highlightcolor, -highlightthickness, -relief, -state, -takefocus, and -width.
Other options are:
- -bigincrement => amount
- The amount to change the slider when using large increments. Default is 0, which means 1/10 of the scale.
- -command => callback
- Pointer to a function that will be called for every incremental change in the slider.
- -digits => amount
- The number of digits to keep when converting from a number to a string.
- -from => n
- Low end of the scale (default is 0).
- -label => string
- The string to use as a label for the slider.
- -length => amount
- The length of the scale.
- -orient => direction
- The orientation of the slider. Values can be either vertical (default) or horizontal.
- -repeatdelay => milliseconds
- Determines the number of milliseconds to hold down an arrow before it auto-repeats. Default is 300.
- -repeatinterval => milliseconds
- Determines the number of milliseconds between auto-repeats once it is started. Default is 100.
- -resolution => value
- The increments that the scale will change by (default is 1).
- -showvalue => boolean
- Whether to show the current value of the slider (default is 1).
- -sliderlength => amount
- The size of the slider. Default is 25 pixels.
- -tickinterval => n
- The number of "ticks" to display for the slider (default is 0).
- -to => n
- The top value of the scale (default is 100).
- -troughcolor => color
- Changes the color of the trough.
- -variable => \$variable
- Assigns the value of the slider to the specified variable.
21.13.1. Scale Methods
In addition to configure and cget, the following methods are defined for the Scale widget:
- get
- Returns the current value if given no arguments. If given x and y coordinates as the first and second arguments, returns the value of the scale at that position.
- set
- Assigns the value associated with the scale.
- coords
- Returns the x and y coordinates associated with the value given in the first argument.
- identify
- Returns "slider", "trough1", "trough2", or "", depending on which part of the scale corresponds to the given x, y coordinates.
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| 21.12. The Canvas Widget |  | 21.14. The Menubutton Widget |
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