Ember+ Provider - How to update parameters

[Corné Doggen]

Dear All, 

I  have some questions about implementing a Ember+ Provider. 

The example application __sample_provider.c in the folder/ember-plus/libemberr_slim/Source gave me a good starting point.

In the application several node's are created in the buildTree() function. 

The EmberPlusView.exe application show me the Ember+ Provider, and i an browse through all nodes. 

My question is: How can i simply update a parameter in my provider application. 

If we look at the audio gain parameter , how can i update the value of it if it changes in the current hardware device? 

Do i need to search first the parameter in the tree with findNode() to locate the pointer to the actual memory address of the variable? 

And do i need to notify the customers of the value change of this parameter? or is Ember+ library handling all this for me? 

i search for a simple way to update a parameter value... 

Thank you!

Kind Regards, 
Corné Doggen

 

static void buildTree(SampleNode *pRoot)

{

   SampleNode *pVisualRoot, *pFood, *pNonFood, *pStreams, *pAudio;

   pVisualRoot = createNode(pRoot, "root", "root");

   pFood = createNode(pVisualRoot, "food", "Some food");

   createNode(pFood, "parsley", "tasty herb");

   createNode(pFood, "salad", "eat a lot of it!");

   pNonFood = createNode(pVisualRoot, "non-food", "tech stuff");

   pAudio = createNode(pNonFood, "audio", "ask Lawo");

   createGain(pAudio);

   createFaderStart(pAudio);

   createVolume(pAudio);

   createFormat(pAudio);

   createNode(pAudio, "dangling", NULL);

   pStreams = createNode(pNonFood, "streams", "see 'em move");

   pStreams->node.pSchemaIdentifiers = stringDup("de.l-s-b.emberplus.samples.streams");

   pStreams->fields |= GlowFieldFlag_SchemaIdentifier;

   createStream1(pStreams);

   createStream2(pStreams);

   createStream3(pStreams);

   createStream4(pStreams);

}