# Sandbox.PolygonMesh.IsEdgeHidden

```csharp
bool IsEdgeHidden(HalfEdgeHandle hEdge)
```

Is every face using this edge hidden?

### Parameters

- `hEdge` (`HalfEdgeHandle`)

### Returns

`bool`

Declared in [Sandbox.PolygonMesh](/api/Sandbox.PolygonMesh).
Assembly: `Sandbox.Engine`.