ttk::button - Widget that issues a command when pressed

       A ttk::button widget displays a textual label and/or image, and evaluates a command when pressed.

       widget, button, default, command

Tk                                                     8.5                                      ttk::button(3tk)

       ttk::button - Widget that issues a command when pressed

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

-class-compound-cursor-image-justify-state-style-takefocus-text-textvariable-underline-width

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

Ttk::button widgets support the Toolbutton style in all standard themes, which  is  useful  for  creating
       widgets for toolbars.

       In  the  Aqua  theme  there are several other styles which can be used to produce replicas of many of the
       different button types  that  are  discussed  in  Apple's  Human  Interface  Guidelines.   These  include
       DisclosureButton,    DisclosureTriangle,    HelpButton,    ImageButton,   InlineButton,   GradientButton,
       RoundedRectButton, and RecessedButton.

       The class name for a ttk::button is TButton.

       Dynamic states: active, disabled, pressed, readonly.

       TButton styling options configurable with ttk::style are:

       -anchoranchor-backgroundcolor-bordercolorcolor-compoundcompound-darkcolorcolor-foregroundcolor-fontfont-highlightcolorcolor-highlightthicknessamount-lightcolorcolor-paddingpadding-reliefrelief-shiftreliefamount-shiftrelief specifies how far the button contents are shifted  down  and  right  in  the  pressed
              state.  This action provides additional skeuomorphic feedback.
       -widthamount

       Some options are only available for specific themes.

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

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

       pathNameinvoke
              Invokes the command associated with the button.

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

              A script to evaluate when the widget is invoked.

       Command-Line Name:-default
       Database Name:  default
       Database Class: Default

              May  be set to one of  normal, active, or disabled.  In a dialog box, one button may be designated
              the “default” button (meaning,  roughly,  “the  one  that  gets  invoked  when  the  user  presses
              <Enter>”).   active  indicates that this is currently the default button; normal means that it may
              become the default button, and disabled means that it is not defaultable.  The default is normal.

              Depending on the theme, the default button may be displayed with an extra highlight ring, or  with
              a different border color.