IUPnPServiceCallback interface

The IUPnPServiceCallback interface is used to send event notifications to clients of Service objects.

When to implement

Developers should implement this interface for C++ applications that are written to receive event notifications from a service. Developers using all other programming languages, such as Visual Basic, should implement a custom callback function to receive callbacks. See Registering a Callback for examples.

When to use

The UPnP Framework invokes this callback when an event occurs.

Members

The IUPnPServiceCallback interface inherits from the IUnknown interface. IUPnPServiceCallback also has these types of members:

Methods

The IUPnPServiceCallback interface has these methods.

MethodDescription
ServiceInstanceDied

Method that indicates that a service will no longer be sending events.

StateVariableChanged

Method that indicates that a state variable has changed.

 

Requirements

Minimum supported client

Windows XP [desktop apps only]

Minimum supported server

None supported

Header

Upnp.h

DLL

Upnp.dll

 

 

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