---
title: "SetAlpha.Opacity Property "
canonical: https://www.graphicsmill.com/docs/gm/P_Aurigma_GraphicsMill_Transforms_SetAlpha_Opacity.htm
product: "Graphics Mill"
---

# SetAlpha.Opacity Property 
 
Gets or sets an opacity to initialize the alpha channel with.
 
**Namespace:** [Aurigma.GraphicsMill.Transforms](https://www.graphicsmill.com/docs/gm/N_Aurigma_GraphicsMill_Transforms.htm.md)
 **Assembly:** Aurigma.GraphicsMill (in Aurigma.GraphicsMill.dll)
 
## Syntax
  
```csharp
public float Opacity { get; set; }
```
 
### Property Value
The opacity (in range [0, 1]) to initialize the alpha channel with. Depending on the channel color depth this value is normalized to 255 (for non-extended 8 bits per channel pixel formats) or to 65535 (for extended 16 bits per channel pixel formats).
   
## See Also

### Reference

- [SetAlpha Class](https://www.graphicsmill.com/docs/gm/T_Aurigma_GraphicsMill_Transforms_SetAlpha.htm.md)
- [Aurigma.GraphicsMill.Transforms Namespace](https://www.graphicsmill.com/docs/gm/N_Aurigma_GraphicsMill_Transforms.htm.md)