DrawingControl.QueryCancelSelectionDelete Event
| Visio Automation Reference |
Occurs before the application deletes a selection of shapes in response to a user action in the interface. If any event handler returns True, the operation is canceled.
Version Information
Version Added: Visio 2000
Syntax
Private Sub expression_QueryCancelSelectionDelete(ByVal selection As [IVSELECTION])
expression A variable that represents a DrawingControl object.
Parameters
| Name | Required/Optional | Data Type | Description |
|---|---|---|---|
| Selection | Required | [IVSELECTION] | The selection of shapes that is going to be deleted. |
Remarks
A Microsoft Office Visio instance fires QueryCancelSelectionDelete after the user has directed the instance to delete one or more shapes.
- If any event handler returns True (cancel), the instance will fire SelectionDeleteCanceled and not delete the shapes.
- If all handlers returnFalse (don't cancel), the instance will fire BeforeSelectionDelete and BeforeShapeDelete and then delete the shapes.
While a Visio instance is firing a query or cancel event, it will respond to inquiries from client code but will refuse to perform operations. Client code can show forms or message boxes while responding to a query or cancel event.
If you're using Microsoft Visual Basic or Visual Basic for Applications (VBA), the syntax in this topic describes a common, efficient way to handle events.
If you want to create your own Event objects, use the Add or AddAdvise method. To create an Event object that runs an add-on, use the Add method as it applies to the EventList collection. To create an Event object that receives notification, use the AddAdvise method. To find an event code for the event you want to create, see Event codes.
See Also