---
title: "BaseViewer Events"
canonical: https://www.graphicsmill.com/docs/gmwc/Events_T_J_GraphicsMill_BaseViewer.htm
archived: true
applies_to:
  - product: "Graphics Mill Web Controls"
---

**You’re viewing documentation for an outdated product.** Graphics Mill Web Controls is no longer part of Graphics Mill. For current design editing and rendering tools, see [Design Atoms .NET](https://customerscanvas.com/docs/on-premises/design-atoms-cs/), [Design Atoms JS](https://customerscanvas.com/docs/on-premises/design-atoms-js/), and [Design Editor](https://customerscanvas.com/docs/on-premises/design-editor/).

# BaseViewer Events

**Applies to:** Graphics Mill Web Controls · **Archived documentation**
 
The [BaseViewer](https://www.graphicsmill.com/docs/gmwc/T_J_GraphicsMill_BaseViewer.htm.md) type exposes the following members.
 
## Events

|   |  Name |  Description |
| --- | --- | --- |
 |  ![Public event](https://www.graphicsmill.com/docs/gmwc/icons/pubevent.gif) |  [click](https://www.graphicsmill.com/docs/gmwc/E_J_GraphicsMill_BaseViewer_click.htm.md) |  Fires when the control is clicked. |
 |  ![Public event](https://www.graphicsmill.com/docs/gmwc/icons/pubevent.gif) |  [disposing](https://www.graphicsmill.com/docs/gmwc/E_J_GraphicsMill_BaseViewer_disposing.htm.md) |   |
 |  ![Public event](https://www.graphicsmill.com/docs/gmwc/icons/pubevent.gif) |  [invokingCallbackRequest](https://www.graphicsmill.com/docs/gmwc/E_J_GraphicsMill_BaseViewer_invokingCallbackRequest.htm.md) |  Occurs before the callback is initiated by this control. |
 |  ![Public event](https://www.graphicsmill.com/docs/gmwc/icons/pubevent.gif) |  [mouseDown](https://www.graphicsmill.com/docs/gmwc/E_J_GraphicsMill_BaseViewer_mouseDown.htm.md) |  Fires when the user clicks the control with either mouse button. |
 |  ![Public event](https://www.graphicsmill.com/docs/gmwc/icons/pubevent.gif) |  [mouseMove](https://www.graphicsmill.com/docs/gmwc/E_J_GraphicsMill_BaseViewer_mouseMove.htm.md) |  Fires when the user moves the mouse over the control. |
 |  ![Public event](https://www.graphicsmill.com/docs/gmwc/icons/pubevent.gif) |  [mouseUp](https://www.graphicsmill.com/docs/gmwc/E_J_GraphicsMill_BaseViewer_mouseUp.htm.md) |  Fires when the user releases a mouse button while the mouse is over the control. |
 |  ![Public event](https://www.graphicsmill.com/docs/gmwc/icons/pubevent.gif) |  [pinchStart](https://www.graphicsmill.com/docs/gmwc/E_J_GraphicsMill_BaseViewer_pinchStart.htm.md) |  Fires when the content is start zooming by pinch gesture. |
 |  ![Public event](https://www.graphicsmill.com/docs/gmwc/icons/pubevent.gif) |  [pinchStop](https://www.graphicsmill.com/docs/gmwc/E_J_GraphicsMill_BaseViewer_pinchStop.htm.md) |  Fires when the content zooming by pinch gesture. |
 |  ![Public event](https://www.graphicsmill.com/docs/gmwc/icons/pubevent.gif) |  [propertyChanged](https://www.graphicsmill.com/docs/gmwc/E_J_GraphicsMill_BaseViewer_propertyChanged.htm.md) |   |
 |  ![Public event](https://www.graphicsmill.com/docs/gmwc/icons/pubevent.gif) |  [scrolled](https://www.graphicsmill.com/docs/gmwc/E_J_GraphicsMill_BaseViewer_scrolled.htm.md) |  Fires when scroll position of the control is changed. |
 |  ![Public event](https://www.graphicsmill.com/docs/gmwc/icons/pubevent.gif) |  [statusChanged](https://www.graphicsmill.com/docs/gmwc/E_J_GraphicsMill_BaseViewer_statusChanged.htm.md) |  Fires when status (see [status](https://www.graphicsmill.com/docs/gmwc/P_J_GraphicsMill_BaseViewer_status.htm.md) property) is updated. |
 |  ![Public event](https://www.graphicsmill.com/docs/gmwc/icons/pubevent.gif) |  [workspaceChanged](https://www.graphicsmill.com/docs/gmwc/E_J_GraphicsMill_BaseViewer_workspaceChanged.htm.md) |  Occurs when the content of the associated workspace is replaced. |
 |  ![Public event](https://www.graphicsmill.com/docs/gmwc/icons/pubevent.gif) |  [workspaceClick](https://www.graphicsmill.com/docs/gmwc/E_J_GraphicsMill_BaseViewer_workspaceClick.htm.md) |  Fires when the content displayed in the control is clicked. |
 |  ![Public event](https://www.graphicsmill.com/docs/gmwc/icons/pubevent.gif) |  [workspaceDoubleClick](https://www.graphicsmill.com/docs/gmwc/E_J_GraphicsMill_BaseViewer_workspaceDoubleClick.htm.md) |  Occurs when a mouse button is double clicked in the content displayed by this viewer control. |
 |  ![Public event](https://www.graphicsmill.com/docs/gmwc/icons/pubevent.gif) |  [workspaceMouseDown](https://www.graphicsmill.com/docs/gmwc/E_J_GraphicsMill_BaseViewer_workspaceMouseDown.htm.md) |  Occurs when a mouse button is clicked in the content displayed by this viewer control. |
 |  ![Public event](https://www.graphicsmill.com/docs/gmwc/icons/pubevent.gif) |  [workspaceMouseMove](https://www.graphicsmill.com/docs/gmwc/E_J_GraphicsMill_BaseViewer_workspaceMouseMove.htm.md) |  Fires when the user moves the mouse over the content of control. |
 |  ![Public event](https://www.graphicsmill.com/docs/gmwc/icons/pubevent.gif) |  [workspaceMouseUp](https://www.graphicsmill.com/docs/gmwc/E_J_GraphicsMill_BaseViewer_workspaceMouseUp.htm.md) |  Fires when the user releases a mouse button while the mouse is over the content of control. |
 |  ![Public event](https://www.graphicsmill.com/docs/gmwc/icons/pubevent.gif) |  [zoomed](https://www.graphicsmill.com/docs/gmwc/E_J_GraphicsMill_BaseViewer_zoomed.htm.md) |  Fires when the content is zoomed in the control. |
   
## See Also

### Reference

- [BaseViewer Class](https://www.graphicsmill.com/docs/gmwc/T_J_GraphicsMill_BaseViewer.htm.md)
- [GraphicsMill Namespace](https://www.graphicsmill.com/docs/gmwc/N_J_GraphicsMill.htm.md)