javascript - NativeClient : How to use Messaging_HandleMessage in C -

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i've got problem c code , lack of informations nacl in c painful... use earth example .png loaded javascript , send c module when message don't know how convert ppb_vardictionary, got idea ?

here c method :

static void messaging_handlemessage(pp_instance instance, struct pp_var message) {     fprintf(stdout, "%i\n", message.type);     if(message.type == pp_vartype_dictionary)     {         ppb_vardictionary *dictionary = null;         dictionary->create();     }  }

thanks in advance reply.

unlike c++, can pass pp_var ppb_vardictionary interface directly. if correct type, work. if not, give error.

you can take @ nacl_io_demo example (examples/demo/nacl_io in nacl sdk) see how works. in case, can this:

ppb_var* g_ppb_var = null; ppb_vardictionary* g_ppb_var_dictionary = null;  pp_export int32_t ppp_initializemodule(pp_module a_module_id,                                        ppb_getinterface get_browser) {   g_ppb_var = (ppb_var*)(get_browser(ppb_var_interface));   g_ppb_var_dictionary =        (ppb_vardictionary*)(get_browser(ppb_var_dictionary_interface));   return pp_ok; }  static void messaging_handlemessage(pp_instance instance, struct pp_var message) {     fprintf(stdout, "%i\n", message.type);     if(message.type == pp_vartype_dictionary)     {         // value maps key "foo".         pp_var key_var = g_ppb_var->varfromutf8("foo", 3);         pp_var value_var = g_ppb_var_dictionary->get(message, key_var);         g_ppb_var->release(key_var);          // value_var...     }  }

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