Qt: Fix some warnings

src/platform/qt/DisplayQt.cpp

@@ -87,8 +87,8 @@ void DisplayQt::resizeContext() {
 	if (m_width != size.width() || m_height != size.height()) {
 		m_width = size.width();
 		m_height = size.height();
-		m_oldBacking = std::move(QImage());
-		m_backing = std::move(QImage());
+		m_oldBacking = QImage();
+		m_backing = QImage();
 	}
 }
 

src/platform/qt/GBAApp.h

@@ -61,7 +61,6 @@ public:
 	QFont monospaceFont() { return m_monospace; }
 
 	QList<Window*> windows() { return m_windows; }
-	Window* newWindow();
 
 	QString getOpenFileName(QWidget* owner, const QString& title, const QString& filter = {});
 	QStringList getOpenFileNames(QWidget* owner, const QString& title, const QString& filter = {});
@@ -81,6 +80,7 @@ public:
 
 public slots:
 	void restartForUpdate();
+	Window* newWindow();
 
 signals:
 	void jobFinished(qint64 jobId);

src/platform/qt/MemoryModel.cpp

@@ -678,7 +678,7 @@ void MemoryModel::adjustCursor(int adjust, bool shift) {
 	}
 	int cursorPosition = m_top;
 	if (shift) {
-		uint32_t absolute;
+		uint32_t absolute = adjust;
 		if (m_selectionAnchor == m_selection.first) {
 			if (adjust < 0 && m_base - adjust > m_selection.second) {
 				absolute = m_base - m_selection.second + m_align;

src/platform/qt/Window.cpp

@@ -1373,9 +1373,7 @@ void Window::setupMenu(QMenuBar* menubar) {
 	}
 
 	m_actions.addSeparator("file");
-	m_multiWindow = m_actions.addAction(tr("New multiplayer window"), "multiWindow", [this]() {
-		GBAApp::app()->newWindow();
-	}, "file");
+	m_multiWindow = m_actions.addAction(tr("New multiplayer window"), "multiWindow", GBAApp::app(), &GBAApp::newWindow, "file");
 
 #ifdef M_CORE_GBA
 	Action* dolphin = m_actions.addAction(tr("Connect to Dolphin..."), "connectDolphin", openNamedTView<DolphinConnector>(&m_dolphinView, this), "file");
@@ -1933,7 +1931,7 @@ Action* Window::addGameAction(const QString& visibleName, const QString& name, A
 
 template<typename T, typename V>
 Action* Window::addGameAction(const QString& visibleName, const QString& name, T* obj, V (T::*method)(), const QString& menu, const QKeySequence& shortcut) {
-	return addGameAction(visibleName, name, [this, obj, method]() {
+	return addGameAction(visibleName, name, [obj, method]() {
 		(obj->*method)();
 	}, menu, shortcut);
 }

src/util/configuration.c

@@ -183,7 +183,7 @@ bool ConfigurationWrite(const struct Configuration* configuration, const char* p
 	}
 	bool res = ConfigurationWriteVFile(configuration, vf);
 	vf->close(vf);
-	return true;
+	return res;
 }
 
 bool ConfigurationWriteVFile(const struct Configuration* configuration, struct VFile* vf) {