# DVE Mask Set

| Message                       | Description                                              | Arguments |
| ----------------------------- | -------------------------------------------------------- | --------- |
| `/mixeffect/usk/dve/mask/set` | Sets a single mask parameter for the DVE upstream keyer. | Multiple  |

| Argument       | Type    | Description                                                                                                                                                                                                                                           |
| -------------- | ------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Mask Parameter | String  | <p>top<br>bottom<br>left<br>right</p>                                                                                                                                                                                                                 |
| New Value      | Float   | The new value.                                                                                                                                                                                                                                        |
| 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.                                                                                                                                                                                                  |
| Duration       | Integer | <p>(Optional)<br>0 = Off<br>1-10000 = Number of milliseconds to tween the parameters. Default is 0.</p>                                                                                                                                               |
| Style          | Integer | <p>(Optional)<br>0 = Cosine<br>1 = Cubed<br>2 = Inverse Cubed<br>3 = Inverse Squared<br>4 = Linear<br>5 = Sine<br>6 = Smooth Step<br>7 = Smoother Step<br>8 = Squared<br>9 = Ease In Out Elastic<br>10 = Ease Out Bounce<br>11 = Ease Out Elastic</p> |

> **Note**: If you want to adjust an individual mask setting for the Luma, Chroma, or Pattern upstream keyers, use the USK Mask Adjust action.