---
title: "MultiLayerViewerInvalidationTarget Constructor (Rectangle, Layer)"
canonical: https://www.graphicsmill.com/docs/gm5/C_Aurigma_GraphicsMill_WinControls_MultiLayerViewerInvalidationTarget_ctor_2_a3eeba5f.htm
product: "Graphics Mill 5.5 for .NET"
---

This documentation is for the old version. [Go to the latest Graphics Mill docs](https://www.graphicsmill.com/docs/gm/)

# MultiLayerViewerInvalidationTarget Constructor (Rectangle, Layer)
 
Creates and initializes a new [MultiLayerViewerInvalidationTarget](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_WinControls_MultiLayerViewerInvalidationTarget.htm.md) object using the specified layer.
 
**Namespace:** [Aurigma.GraphicsMill.WinControls](https://www.graphicsmill.com/docs/gm5/N_Aurigma_GraphicsMill_WinControls.htm.md)
 **Assembly:** Aurigma.GraphicsMill.WinControls.VectorObjects (in Aurigma.GraphicsMill.WinControls.VectorObjects.dll)
 
## Syntax
  
```
Public Sub New ( _rectangle As Rectangle, _layer As Layer _
)
```
 
```csharp
public MultiLayerViewerInvalidationTarget(Rectangle rectangle,Layer layer
)
```
 
### Parameters
 
 - rectangle
     - Type: [System.Drawing.Rectangle](http://msdn2.microsoft.com/en-us/1zk39146)
A rectangle that represents the region to invalidate.

 - layer
     - Type: [Aurigma.GraphicsMill.WinControls.Layer](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_WinControls_Layer.htm.md)
A specific layer that is changed.
   
## See Also

### Reference

- [MultiLayerViewerInvalidationTarget Class](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_WinControls_MultiLayerViewerInvalidationTarget.htm.md)
- [MultiLayerViewerInvalidationTarget Overload](https://www.graphicsmill.com/docs/gm5/O_T_Aurigma_GraphicsMill_WinControls_MultiLayerViewerInvalidationTarget_ctor.htm.md)
- [Aurigma.GraphicsMill.WinControls Namespace](https://www.graphicsmill.com/docs/gm5/N_Aurigma_GraphicsMill_WinControls.htm.md)