XnStatus GeneratorWatcher::UpdateFrameSync()
{
// go over all nodes, and find the frame synced one
Context context;
m_generator.GetContext(context);
NodeInfoList nodes;
XnStatus nRetVal = context.EnumerateExistingNodes(nodes);
XN_IS_STATUS_OK(nRetVal);
for (NodeInfoList::Iterator it = nodes.Begin(); it != nodes.End(); ++it)
{
NodeInfo info = *it;
// make sure this is a generator
if (xnIsTypeDerivedFrom(info.GetDescription().Type, XN_NODE_TYPE_GENERATOR))
{
Generator otherGen;
nRetVal = info.GetInstance(otherGen);
XN_IS_STATUS_OK(nRetVal);
if (m_generator.GetFrameSyncCap().IsFrameSyncedWith(otherGen))
{
nRetVal = NotifyStringPropChanged(XN_PROP_FRAME_SYNCED_WITH, otherGen.GetName());
XN_IS_STATUS_OK(nRetVal);
return XN_STATUS_OK;
}
}
}
// if we got here, we're not frame synced
nRetVal = NotifyStringPropChanged(XN_PROP_FRAME_SYNCED_WITH, "");
XN_IS_STATUS_OK(nRetVal);
return XN_STATUS_OK;
}
XnBool isInstanceOf(XnProductionNodeType deriv, XnProductionNodeType base) {
if (deriv == base) {
return true;
}
return xnIsTypeDerivedFrom(deriv, base);
}