# AboutData

If a [script add-in](https://chaoses-ib.gitbook.io/directory-opus/manual/scripting/script_add-ins) provides an [**OnAboutScript**](https://chaoses-ib.gitbook.io/directory-opus/manual/reference/scripting_reference/scripting_events/onaboutscript) method, it is passed an **AboutData** object when invoked via the user clicking the *About* button in Preferences.

| Property Name | Return Type | Description                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
| ------------- | ----------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| window        | *int*       | This is a handle to the parent window that the script should use if displaying a dialog via the [**Dialog**](https://chaoses-ib.gitbook.io/directory-opus/manual/reference/scripting_reference/scripting_objects/dialog) object. Even though this is not a [**Lister**](https://chaoses-ib.gitbook.io/directory-opus/manual/reference/scripting_reference/scripting_objects/lister) or [**Tab**](https://chaoses-ib.gitbook.io/directory-opus/manual/reference/scripting_reference/scripting_objects/tab), it can still be assigned to the **Dialog.window** property to set the parent window of the dialog. |


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