# DVE Mask

| Message                   | Description                                                                   | Arguments |
| ------------------------- | ----------------------------------------------------------------------------- | --------- |
| `/mixeffect/usk/dve/mask` | Sets the Top, Bottom, Left, and Right mask values for the DVE upstream keyer. | Multiple  |

| Argument | Type    | Description                                                                                                                                                                                                                                           |
| -------- | ------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Top      | Float   | Float from 0 to 38.0                                                                                                                                                                                                                                  |
| Bottom   | Float   | Float from 0 to 38.0                                                                                                                                                                                                                                  |
| Left     | Float   | Float from 0 to 52.0                                                                                                                                                                                                                                  |
| Right    | Float   | Float from 0 to 52.0                                                                                                                                                                                                                                  |
| USK      | Integer | One-based index of the Upstream Keyer. Default is 1.                                                                                                                                                                                                  |
| M/E      | USK     | 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 set the mask for the Luma, Chroma, or Pattern upstream keyers, use the USK Mask action.