Some fixes for windows

Signed-off-by: falkTX <falktx@gmail.com>

source/backend/plugin/CarlaPluginJuce.cpp

@@ -1232,7 +1232,7 @@ public:
         else
             pData->name = pData->engine->getUniquePluginName(fInstance->getName().toRawUTF8());
 
-        if (filename != nullptr && pData->filename[0] != '\0')
+        if (filename != nullptr && filename[0] != '\0')
             pData->filename = carla_strdup(filename);
 
         // ---------------------------------------------------------------

source/bridges-plugin/CarlaBridgePlugin.cpp

@@ -251,8 +251,10 @@ public:
         gIsInitiated = true;
 
 #if defined(USING_JUCE) && (defined(CARLA_OS_MAC) || defined(CARLA_OS_WIN))
+# ifndef CARLA_OS_WIN
         static const int argc = 0;
         static const char* argv[] = {};
+# endif
         juce::JUCEApplicationBase::createInstance = &juce_CreateApplication;
         juce::JUCEApplicationBase::main(JUCE_MAIN_FUNCTION_ARGS);
 #else

source/utils/JucePluginWindow.hpp

@@ -125,6 +125,13 @@ private:
         [parentWindow addChildWindow:window
                              ordered:NSWindowAbove];
 #endif
+
+#if JUCE_WINDOWS
+        const HWND window = (HWND)getWindowHandle();
+        CARLA_SAFE_ASSERT_RETURN(window != nullptr,);
+
+        SetWindowLongPtr(window, GWLP_HWNDPARENT, static_cast<LONG_PTR>(fTransientId));
+#endif
     }
 
     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(JucePluginWindow)