---
title: "ViewerBase..::.WorkspaceMouseDown Event"
canonical: https://www.graphicsmill.com/docs/gm5/E_Aurigma_GraphicsMill_WinControls_ViewerBase_WorkspaceMouseDown.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/)

# ViewerBase.WorkspaceMouseDown Event
 
Raised when a mouse button is pressed down at the image displayed by this viewer control.
 
**Namespace:** [Aurigma.GraphicsMill.WinControls](https://www.graphicsmill.com/docs/gm5/N_Aurigma_GraphicsMill_WinControls.htm.md)
 **Assembly:** Aurigma.GraphicsMill.WinControls (in Aurigma.GraphicsMill.WinControls.dll)
 
## Syntax
  
```
Public Event WorkspaceMouseDown As MouseEventHandler
```
 
```csharp
public event MouseEventHandler WorkspaceMouseDown
```
 
## Remarks
  
Position of the mouse pointer is measured in the coordinates of the workspace (physical units of measure).
   
## See Also

### Reference

- [ViewerBase Class](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_WinControls_ViewerBase.htm.md)
- [Aurigma.GraphicsMill.WinControls Namespace](https://www.graphicsmill.com/docs/gm5/N_Aurigma_GraphicsMill_WinControls.htm.md)