diff --git a/src/platform/qt/CoreController.cpp b/src/platform/qt/CoreController.cpp
index 5bdc997c2..7cc8d7e1f 100644
--- a/src/platform/qt/CoreController.cpp
+++ b/src/platform/qt/CoreController.cpp
@@ -998,9 +998,9 @@ void CoreController::attachPrinter() {
 	}
 	GB* gb = static_cast<GB*>(m_threadContext.core->board);
 	clearMultiplayerController();
-	GBPrinterCreate(&m_printer.d);
+	GBPrinterCreate(&m_printer);
 	m_printer.parent = this;
-	m_printer.d.print = [](GBPrinter* printer, int height, const uint8_t* data) {
+	m_printer.print = [](GBPrinter* printer, int height, const uint8_t* data) {
 		QGBPrinter* qPrinter = reinterpret_cast<QGBPrinter*>(printer);
 		QImage image(GB_VIDEO_HORIZONTAL_PIXELS, height, QImage::Format_Indexed8);
 		QVector<QRgb> colors;
@@ -1021,7 +1021,7 @@ void CoreController::attachPrinter() {
 		QMetaObject::invokeMethod(qPrinter->parent, "imagePrinted", Q_ARG(const QImage&, image));
 	};
 	Interrupter interrupter(this);
-	GBSIOSetDriver(&gb->sio, &m_printer.d.d);
+	GBSIOSetDriver(&gb->sio, &m_printer.d);
 }
 
 void CoreController::detachPrinter() {
@@ -1030,7 +1030,7 @@ void CoreController::detachPrinter() {
 	}
 	Interrupter interrupter(this);
 	GB* gb = static_cast<GB*>(m_threadContext.core->board);
-	GBPrinterDonePrinting(&m_printer.d);
+	GBPrinterDonePrinting(&m_printer);
 	GBSIOSetDriver(&gb->sio, nullptr);
 }
 
@@ -1039,7 +1039,7 @@ void CoreController::endPrint() {
 		return;
 	}
 	Interrupter interrupter(this);
-	GBPrinterDonePrinting(&m_printer.d);
+	GBPrinterDonePrinting(&m_printer);
 }
 #endif
 
diff --git a/src/platform/qt/CoreController.h b/src/platform/qt/CoreController.h
index 9e64bb838..74d9a7b05 100644
--- a/src/platform/qt/CoreController.h
+++ b/src/platform/qt/CoreController.h
@@ -314,8 +314,7 @@ private:
 	VFile* m_vlVf = nullptr;
 
 #ifdef M_CORE_GB
-	struct QGBPrinter {
-		GBPrinter d;
+	struct QGBPrinter : public GBPrinter {
 		CoreController* parent;
 	} m_printer;
 #endif
diff --git a/src/platform/qt/DebuggerConsoleController.cpp b/src/platform/qt/DebuggerConsoleController.cpp
index 3a9446b15..bacc97104 100644
--- a/src/platform/qt/DebuggerConsoleController.cpp
+++ b/src/platform/qt/DebuggerConsoleController.cpp
@@ -19,18 +19,18 @@ using namespace QGBA;
 DebuggerConsoleController::DebuggerConsoleController(QObject* parent)
 	: DebuggerController(&m_cliDebugger.d, parent)
 {
-	m_backend.d.printf = printf;
-	m_backend.d.init = init;
-	m_backend.d.deinit = deinit;
-	m_backend.d.readline = readLine;
-	m_backend.d.lineAppend = lineAppend;
-	m_backend.d.historyLast = historyLast;
-	m_backend.d.historyAppend = historyAppend;
-	m_backend.d.interrupt = interrupt;
+	m_backend.printf = printf;
+	m_backend.init = init;
+	m_backend.deinit = deinit;
+	m_backend.readline = readLine;
+	m_backend.lineAppend = lineAppend;
+	m_backend.historyLast = historyLast;
+	m_backend.historyAppend = historyAppend;
+	m_backend.interrupt = interrupt;
 	m_backend.self = this;
 
 	CLIDebuggerCreate(&m_cliDebugger);
-	CLIDebuggerAttachBackend(&m_cliDebugger, &m_backend.d);
+	CLIDebuggerAttachBackend(&m_cliDebugger, &m_backend);
 }
 
 void DebuggerConsoleController::enterLine(const QString& line) {
@@ -60,7 +60,7 @@ void DebuggerConsoleController::attachInternal() {
 	CoreController::Interrupter interrupter(m_gameController);
 	QMutexLocker lock(&m_mutex);
 	mCore* core = m_gameController->thread()->core;
-	CLIDebuggerAttachBackend(&m_cliDebugger, &m_backend.d);
+	CLIDebuggerAttachBackend(&m_cliDebugger, &m_backend);
 	CLIDebuggerAttachSystem(&m_cliDebugger, core->cliDebuggerSystem(core));
 }
 
diff --git a/src/platform/qt/DebuggerConsoleController.h b/src/platform/qt/DebuggerConsoleController.h
index fdf183c08..c3d98d35c 100644
--- a/src/platform/qt/DebuggerConsoleController.h
+++ b/src/platform/qt/DebuggerConsoleController.h
@@ -56,8 +56,7 @@ private:
 	QStringList m_lines;
 	QByteArray m_last;
 
-	struct Backend {
-		CLIDebuggerBackend d;
+	struct Backend : public CLIDebuggerBackend {
 		DebuggerConsoleController* self;
 	} m_backend;
 };
diff --git a/src/platform/qt/VideoProxy.cpp b/src/platform/qt/VideoProxy.cpp
index 7c6366229..cf674e1e8 100644
--- a/src/platform/qt/VideoProxy.cpp
+++ b/src/platform/qt/VideoProxy.cpp
@@ -12,39 +12,40 @@
 using namespace QGBA;
 
 VideoProxy::VideoProxy() {
-	mVideoLoggerRendererCreate(&m_logger.d, false);
-	m_logger.d.block = true;
-	m_logger.d.waitOnFlush = true;
+	mVideoLoggerRendererCreate(&m_logger, false);
+	m_logger.p = this;
+	m_logger.block = true;
+	m_logger.waitOnFlush = true;
 
-	m_logger.d.init = &cbind<&VideoProxy::init>;
-	m_logger.d.reset = &cbind<&VideoProxy::reset>;
-	m_logger.d.deinit = &cbind<&VideoProxy::deinit>;
-	m_logger.d.lock = &cbind<&VideoProxy::lock>;
-	m_logger.d.unlock = &cbind<&VideoProxy::unlock>;
-	m_logger.d.wait = &cbind<&VideoProxy::wait>;
-	m_logger.d.wake = &callback<void, int>::func<&VideoProxy::wake>;
+	m_logger.init = &cbind<&VideoProxy::init>;
+	m_logger.reset = &cbind<&VideoProxy::reset>;
+	m_logger.deinit = &cbind<&VideoProxy::deinit>;
+	m_logger.lock = &cbind<&VideoProxy::lock>;
+	m_logger.unlock = &cbind<&VideoProxy::unlock>;
+	m_logger.wait = &cbind<&VideoProxy::wait>;
+	m_logger.wake = &callback<void, int>::func<&VideoProxy::wake>;
 
-	m_logger.d.writeData = &callback<bool, const void*, size_t>::func<&VideoProxy::writeData>;
-	m_logger.d.readData = &callback<bool, void*, size_t, bool>::func<&VideoProxy::readData>;
-	m_logger.d.postEvent = &callback<void, enum mVideoLoggerEvent>::func<&VideoProxy::postEvent>;
+	m_logger.writeData = &callback<bool, const void*, size_t>::func<&VideoProxy::writeData>;
+	m_logger.readData = &callback<bool, void*, size_t, bool>::func<&VideoProxy::readData>;
+	m_logger.postEvent = &callback<void, enum mVideoLoggerEvent>::func<&VideoProxy::postEvent>;
 
 	connect(this, &VideoProxy::dataAvailable, this, &VideoProxy::processData);
 }
 
 void VideoProxy::attach(CoreController* controller) {
 	CoreController::Interrupter interrupter(controller);
-	controller->thread()->core->videoLogger = &m_logger.d;
+	controller->thread()->core->videoLogger = &m_logger;
 }
 
 void VideoProxy::detach(CoreController* controller) {
 	CoreController::Interrupter interrupter(controller);
-	if (controller->thread()->core->videoLogger == &m_logger.d) {
+	if (controller->thread()->core->videoLogger == &m_logger) {
 		controller->thread()->core->videoLogger = nullptr;
 	}
 }
 
 void VideoProxy::processData() {
-	mVideoLoggerRendererRun(&m_logger.d, false);
+	mVideoLoggerRendererRun(&m_logger, false);
 	m_fromThreadCond.wakeAll();
 }
 
@@ -67,7 +68,7 @@ bool VideoProxy::writeData(const void* data, size_t length) {
 	while (!RingFIFOWrite(&m_dirtyQueue, data, length)) {
 		if (QThread::currentThread() == thread()) {
 			// We're on the main thread
-			mVideoLoggerRendererRun(&m_logger.d, false);
+			mVideoLoggerRendererRun(&m_logger, false);
 		} else {
 			emit dataAvailable();
 			m_mutex.lock();
@@ -105,7 +106,7 @@ void VideoProxy::postEvent(enum mVideoLoggerEvent event) {
 
 void VideoProxy::handleEvent(int event) {
 	m_mutex.lock();
-	m_logger.d.handleEvent(&m_logger.d, static_cast<enum mVideoLoggerEvent>(event));
+	m_logger.handleEvent(&m_logger, static_cast<enum mVideoLoggerEvent>(event));
 	m_mutex.unlock();
 }
 
@@ -122,7 +123,7 @@ void VideoProxy::wait() {
 	while (RingFIFOSize(&m_dirtyQueue)) {
 		if (QThread::currentThread() == thread()) {
 			// We're on the main thread
-			mVideoLoggerRendererRun(&m_logger.d, false);
+			mVideoLoggerRendererRun(&m_logger, false);
 		} else {
 			emit dataAvailable();
 			m_toThreadCond.wakeAll();
diff --git a/src/platform/qt/VideoProxy.h b/src/platform/qt/VideoProxy.h
index 3ba845617..4e16c1f90 100644
--- a/src/platform/qt/VideoProxy.h
+++ b/src/platform/qt/VideoProxy.h
@@ -24,7 +24,7 @@ public:
 
 	void attach(CoreController*);
 	void detach(CoreController*);
-	void setBlocking(bool block) { m_logger.d.waitOnFlush = block; }
+	void setBlocking(bool block) { m_logger.waitOnFlush = block; }
 
 signals:
 	void dataAvailable();
@@ -51,17 +51,16 @@ private:
 		using type = T (VideoProxy::*)(A...);
 
 		template<type F> static T func(mVideoLogger* logger, A... args) {
-			VideoProxy* proxy = reinterpret_cast<Logger*>(logger)->p;
+			VideoProxy* proxy = static_cast<Logger*>(logger)->p;
 			return (proxy->*F)(args...);
 		}
 	};
 
 	template<void (VideoProxy::*F)()> static void cbind(mVideoLogger* logger) { callback<void>::func<F>(logger); }
 
-	struct Logger {
-		mVideoLogger d;
+	struct Logger : public mVideoLogger {
 		VideoProxy* p;
-	} m_logger = {{}, this};
+	} m_logger;
 
 	RingFIFO m_dirtyQueue;
 	QMutex m_mutex;