Creating VST3 Host failed ........

vst3host.mm

#define BUNDLE_PATH @"/Library/Audio/Plug-Ins/VST3/TDR VOS SlickEQ.vst3"

- (IBAction)testVST:(id)sender {
    NSBundle *bundle = [NSBundle bundleWithPath:BUNDLE_PATH];
    [bundle load];
    NSLog(@"bundle name = %@", bundle);
    
    tresult res = 0;
    
    {
        NSString *bundlePath = BUNDLE_PATH;
        NSURL *bundleURL = [NSURL fileURLWithPath:bundlePath];
        CFBundleRef cfBundle = NULL;
        cfBundle = CFBundleCreate(kCFAllocatorDefault, (CFURLRef)bundleURL);
        BundleEntryFunc entryFunc = (BundleEntryFunc)CFBundleGetFunctionPointerForName(cfBundle,CFSTR("bundleEntry"));
        if (!entryFunc){
            NSLog(@"Bundle does not export the required 'bundleEntry' function");
            return;
        }
        bool ret = entryFunc(cfBundle);
        NSLog(@"bundleEntry return %d", ret);
                                                                                       
        THEAPI func = (THEAPI)CFBundleGetFunctionPointerForName(cfBundle, CFSTR("GetPluginFactory"));
        if(!func){
            NSLog(@"GetPluginFactory() not found. Maybe not VST3 Plugin");
            return;
        }
        IPluginFactory *pluginFactory = func();

        if (!pluginFactory){
            NSLog(@"failed with get IPluginFactory");
            return;
        }
        
        NSLog(@"pluginFactory has %d classes.", pluginFactory->countClasses());
        
        int32 classNum = pluginFactory->countClasses();
        for (int i = 0; i < classNum; i++){
            PClassInfo classInfo;
            pluginFactory->getClassInfo(i, &classInfo);
            NSLog(@"class[%d],%s,category=%s", i, classInfo.name, classInfo.category);
            
            if (0 == strncmp(classInfo.category, kVstAudioEffectClass, strlen(kVstAudioEffectClass))){

                FUnknown *iUnknown;
                res = pluginFactory->createInstance(classInfo.cid, FUnknown::iid, (void **)&iUnknown);
                if (res != kResultOk){
                    NSLog(@"createInstance failed with %d", res);
                    continue;
                }
                
                Vst::IAudioProcessor *iAudioProcessor = NULL;
                res = iUnknown->queryInterface(Vst::IAudioProcessor::iid, (void **)(&iAudioProcessor));
                if (iAudioProcessor){
                    Vst::SpeakerArrangement sa = Vst::SpeakerArr::kStereo;
                    
                    res = iAudioProcessor->setBusArrangements(&sa, 1, &sa, 1);
                    NSLog(@"setBusArrangements returns %d", res);
                    
                    Vst::ProcessSetup processSetup;
                    processSetup.maxSamplesPerBlock =32;
                    processSetup.processMode = Vst::kRealtime;
                    processSetup.sampleRate = 44100;
                    processSetup.symbolicSampleSize = Vst::kSample32;
                    res = iAudioProcessor->setupProcessing(processSetup);
                    NSLog(@"setupProcessing returns %d", res);
//                    g_audioProcessor = iAudioProcessor;
                }else{
                    NSLog(@"failed for queryInterface IAudioProcessor");
                }
                

            }else if (0 == strncmp(classInfo.category, kVstComponentControllerClass, strlen(kVstComponentControllerClass))){
                FUnknown *iUnknown = NULL;
                res = pluginFactory->createInstance(classInfo.cid, FUnknown::iid, (void **)&iUnknown);
                if (iUnknown){
                    Vst::IEditController *editController = NULL;
                    res = iUnknown->queryInterface(Vst::IEditController::iid, (void **)&editController);
                    if (editController){
                        [self IEditorControllerObtained:editController];
                    }
                }
            }
        }
    }
}

-(void)IEditorControllerObtained:(Vst::IEditController *)editorController{
    tresult res = 0;
    
    res = editorController->initialize(&hostApplication);
    
    res = editorController->setComponentHandler(&componentHandler);
    if(res != kResultOk){
        NSLog(@"    failed with setComponentHandler");
        return;
    }else{
        NSLog(@"    OK to setComponentHandler");
    }
    
    int32 c = editorController->getParameterCount();
    NSLog(@"    has %d parameters",c);

    for (int i=0; i < c; i++){
        Vst::ParameterInfo paramInfo = Vst::ParameterInfo();
        res = editorController->getParameterInfo(i, paramInfo);

        NSString *title = [[NSString alloc] initWithCharacters:(const unichar *)paramInfo.title length:128];
        NSString *units = [[NSString alloc] initWithCharacters:(const unichar *)paramInfo.units length:128];
        Vst::ParamID paramId = paramInfo.id;
        Vst::ParamValue defNormalizedValue = paramInfo.defaultNormalizedValue;

        NSLog(@"    parameter[%d]:%@(%d)=%f%@", i, title, paramId,defNormalizedValue,units);

    }
    
    IPlugView *view = editorController->createView("editor");
    NSLog(@"    view = %p", view);

    if(view){
        res = view->isPlatformTypeSupported(kPlatformTypeNSView);
        NSLog(@"    isPlatformTypeSupported(NSView) res = %d", res);

        res = view->attached((__bridge void *)_pluginEditorSuperView, kPlatformTypeNSView);
        NSLog(@"    attached res = %d",res);
    }

    
}

どーしてもgetParameterCount()で0が返る。。

createView()もNULLが返る。。