AppViewBackendManager Interface Reference

AppViewBackendManager is an interface that AppViewPlugin uses to access AppViewBackend. More...

Public Member Functions
AppViewBackend	acquireBackend (String backendName, AppViewController attachingController)
	Acquires a backend with the specified name.
void	releaseBackend (AppViewBackend backend, AppViewController detachingController)
	Releases a backend.

Detailed Description

AppViewBackendManager is an interface that AppViewPlugin uses to access AppViewBackend.

Member Function Documentation

acquireBackend()

AppViewBackend acquireBackend	(	String	backendName,
		AppViewController	attachingController )

Acquires a backend with the specified name.

When the AppView node starts an external application, AppViewPlugin calls this method to acquire a backend for the AppView node. The external application outputs to the associated backend texture, that is rendered in the Kanzi UI scene as the AppView node.

Parameters

backendName	Corresponds to the Name property of Virtual Display of the AppView node.
attachingController	The AppViewController associated with the AppView node. AppViewBackend uses this controller object to notify the AppView node about changes in the state of the backend.

Returns

The backend for the specified backendName.

releaseBackend()

void releaseBackend	(	AppViewBackend	backend,
		AppViewController	detachingController )

Releases a backend.

AppViewPlugin calls this method to release a backend associated with an AppView node. When you call this function, the AppView node guarantees that it does not use the backend anymore. When required, this function cleans up the resources associated with the backend.

Parameters

backend	The backend to release.
detachingController	AppViewController that used the backend.