---
title: "Bitmap..::.Undone Event"
canonical: https://www.graphicsmill.com/docs/gm5/E_Aurigma_GraphicsMill_Bitmap_Undone.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/)

# Bitmap.Undone Event
 
Fires when operation has been undone (after finishing).
 
**Namespace:** [Aurigma.GraphicsMill](https://www.graphicsmill.com/docs/gm5/N_Aurigma_GraphicsMill.htm.md)
 **Assembly:** Aurigma.GraphicsMill (in Aurigma.GraphicsMill.dll)
 
## Syntax
  
```
Public Overridable Event Undone As EventHandler
```
 
```csharp
public virtual event EventHandler Undone
```
 
### Implements
 
[IStateNavigable.Undone](https://www.graphicsmill.com/docs/gm5/E_Aurigma_GraphicsMill_IStateNavigable_Undone.htm.md)
 
## Remarks
 To get information what action has been undone, use argument [Change](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_BitmapChangedEventArgs_Change.htm.md).
   
## See Also

### Reference

- [Bitmap Class](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_Bitmap.htm.md)
- [Aurigma.GraphicsMill Namespace](https://www.graphicsmill.com/docs/gm5/N_Aurigma_GraphicsMill.htm.md)