WiaEventFlag enumeration
Supplies the bits that make up a DeviceEvent type. You can test a DeviceEvent type by using the AND operation with Type (DeviceEvent) and a member from the WiaEventFlag enumeration.
Members
| Member | Description | Value |
|---|---|---|
| NotificationEvent | Indicates that the DeviceEvent is intended to notify a running application that this event has occurred. |
0x1 |
| ActionEvent | Indicates that the DeviceEvent can, if necessary, launch an application if this event occurs. |
0x2 |
Remarks
Because only Action events can have persistent event handlers, it is important to test for this flag before calling RegisterPersistentEvent.
For example code, see Determine the Event Type in Shared Samples.
Requirements
| Minimum supported client |
Windows Vista [desktop apps only] |
| Minimum supported server |
Windows Server 2003 R2 [desktop apps only] |
| Header |
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| IDL |
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