> For the complete documentation index, see [llms.txt](https://docs.mixeffect.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.mixeffect.app/automate/osc/messages/upstream-keyers/dve-mask-enable.md).

# DVE Mask Enable

| Message                          | Description                                                   | Arguments |
| -------------------------------- | ------------------------------------------------------------- | --------- |
| `/mixeffect/usk/dve/mask/enable` | Sets the enabled setting for mask for the DVE upstream keyer. | Multiple  |

| Argument    | Type    | Description                                          |
| ----------- | ------- | ---------------------------------------------------- |
| Enable Mask | Integer | <p>0 = Off<br>1 = On<br>2 = Toggle</p>               |
| USK         | Integer | One-based index of the Upstream Keyer. Default is 1. |
| M/E         | Integer | One-based index of the Mix Effect Bus. Default is 1. |

> **Note**: If you want to set the enable mask for the Luma, Chroma, or Pattern upstream keyers, use the USK Mask Enable action.