Hi there,

following from Miklos and Stefan’s discussion, we now have a plugin that 
registers IPropertyExtensions on various properties. Im still not sure I 
understand this comment from Stefan:
http://sourceforge.net/p/mitk/mailman/message/32166243/

so, if anyone had time to expand on that, I would be grateful.

So, imagine I have some functionality I want to expose as a microservice. So, 
it would be a Service A, in Module B, and I want to use it from Plugins C and D.
I have created my service and activator with blank default methods just to see 
if it all compiles.

Then, in my first plugin (Plugin C in this example) I put:


      us::ModuleContext* niftkCoreGuiContext = 
us::ModuleRegistry::GetModule("niftkCoreGui")->GetModuleContext();

      us::ServiceReference<QmitkLookupTableProviderService> ref = 
niftkCoreGuiContext->GetServiceReference<QmitkLookupTableProviderService>();

      QmitkLookupTableProviderService* lutService = 
us::GetModuleContext()->GetService<QmitkLookupTableProviderService>(ref);


and I get:

Linking CXX shared library 
../../../../../bin/plugins/libuk_ac_ucl_cmic_gui_qt_commonapps.dylib
Undefined symbols for architecture x86_64:
  "us::GetModuleContext()", referenced from:
      
QmitkCommonAppsApplicationPlugin::RegisterImageRenderingModeProperties(std::string
 const&, mitk::DataNode*) in QmitkCommonAppsApplicationPlugin.cxx.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
ma


which I find odd, as Miklo’s code


  us::ModuleContext* mitkCoreContext = 
us::ModuleRegistry::GetModule(1)->GetModuleContext();


is in the same class, and works!

What did I miss?

Thanks

Matt

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