The function called by Fusion when the associated event is fired.
"workspaceEventHandler_var" is a variable referencing a WorkspaceEventHandler object. | 
        
"workspaceEventHandler_var" is a variable referencing a WorkspaceEventHandler object. | 
        
| Name | Type | Description | 
| eventArgs | WorkspaceEventArgs | Returns an object that provides access to additional information associated with the event. |