# Graphical Panel Controls: On/Off Button

An On Off button allows you to change the value of a digital (binary) signal or [application signal](/vspy-3-documentation/vehicle-spy-main-menus/main-menu-scripting-and-automation/application-signals.md) within a graphical panel. You can also use this control to take Vehicle Spy online or offline.

![Figure 1: An On Off button, currently in the Off state.](/files/1F3IPadOnWoVY71LOitb)

Table 1 lists the special properties associated with On Off Button controls. A list of common properties can be found in [Common Control Properties](/vspy-3-documentation/vehicle-spy-main-menus/main-menu-measurement/graphical-panels/graphical-panels-tools/graphical-panel-controls-common-control-properties.md).

**Table 1: On Off Button Control Properties**

| Property  | Function and Options                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| --------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| OnText    | The text shown when the button is pushed or held down (**On** state).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| OffText   | The text shown by default before the button is pressed (**Off** state).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
| OnOffType | <p>Specifies the behavior of the control:</p><ul><li><strong>0-Push Button:</strong> Button state and signal value will change as long as the button is held down; releasing the button will return the button and signal to the <strong>Off</strong> state.</li><li><strong>1-Toggle Button:</strong> The button state and signal value toggle when the button is pressed.</li><li><strong>2-Online/Offline Button:</strong> The button emulates the behavior of the blue Vehicle Spy start/stop buttons (<img src="https://cdn.intrepidcs.net/support/VehicleSpy/assets/play.gif" alt="">/<img src="https://cdn.intrepidcs.net/support/VehicleSpy/assets/playstop.gif" alt="">). VSpy will be online when the button is down, and offline when it is up.</li></ul> |


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