InvisibleApp.BeforeSuspend Event (Visio)
Occurs before the operating system enters a suspended state.
Client programs should close any open network files when this event is fired.
If your solution runs outside the Microsoft Visio process, you cannot be assured of receiving this event. For this reason, you should monitor window messages in your program.
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.