# SystemSettingChangeData

If a [script add-in](../../../scripting/script_add-ins)implements the [**OnSystemSettingChange**](../scripting_events/onsystemsettingchange) event, the method receives a **SystemSettingChangeData** object when various system settings change.

| Property Name           | Return Type                                                                                                                                                                                                                                                               | Description                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |                                               |
| ----------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------- |
| type                    | _string_                                                                                                                                                                                                                                                                  | <p>Returns a string indicating the setting that changed. Settings are:</p><table><thead><tr><th></th><th></th><th></th></tr></thead><tbody><tr><td><strong>theme</strong></td><td>The Windows theme (visual style) has changed</td><td></td></tr><tr><td><strong>colorset</strong></td><td>Opus has changed from light to dark mode or vice versa</td><td></td></tr><tr><td><strong>environment</strong></td><td>System environment variables have been changed</td><td></td></tr><tr><td><strong>dwmcomposition</strong></td><td>Indicates that Windows DWM composition has been turned on or off.</td><td></td></tr><tr><td><strong>dwmcolorization</strong></td><td>Indicates that Windows DWM colorization has been changed.</td><td></td></tr><tr><td><strong>intl</strong></td><td>The system locale has changed.</td><td></td></tr><tr><td><strong>userinteractionmode</strong></td><td>The system input method has changed (from mouse to touch or vice versa). The current method can be queried via the <a href="sysinfo"><strong>SysInfo</strong></a><strong>.TouchInput</strong> method.</td><td></td></tr><tr><td><strong>spacingscheme</strong></td><td>Indicates that the <a href="../../../preferences/preferences_categories/user_interface/spacing">UI spacing scheme has changed</a>. The new scheme name is available in the <strong>name</strong> property. You can also query the scheme using the <a href="dopus"><strong>DOpus</strong></a><strong>.spacingscheme</strong> property.</td><td></td></tr><tr><td><strong>windowmetrics</strong></td><td>System window metrics have changed (e.g. font size).</td><td></td></tr><tr><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td></tr><tr><td>name</td><td></td><td></td></tr></tbody></table><p><em>string</em></p> | Returns a name string for supported settings. |
|                         |                                                                                                                                                                                                                                                                           |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |                                               |
| **theme**               | The Windows theme (visual style) has changed                                                                                                                                                                                                                              |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |                                               |
| **colorset**            | Opus has changed from light to dark mode or vice versa                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |                                               |
| **environment**         | System environment variables have been changed                                                                                                                                                                                                                            |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |                                               |
| **dwmcomposition**      | Indicates that Windows DWM composition has been turned on or off.                                                                                                                                                                                                         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |                                               |
| **dwmcolorization**     | Indicates that Windows DWM colorization has been changed.                                                                                                                                                                                                                 |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |                                               |
| **intl**                | The system locale has changed.                                                                                                                                                                                                                                            |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |                                               |
| **userinteractionmode** | The system input method has changed (from mouse to touch or vice versa). The current method can be queried via the [**SysInfo**](sysinfo)**.TouchInput** method.                                                                                                          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |                                               |
| **spacingscheme**       | Indicates that the [UI spacing scheme has changed](../../../preferences/preferences_categories/user_interface/spacing). The new scheme name is available in the **name** property. You can also query the scheme using the [**DOpus**](dopus)**.spacingscheme** property. |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |                                               |
| **windowmetrics**       | System window metrics have changed (e.g. font size).                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |                                               |
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