diff --git a/demo/MainWindow.cpp b/demo/MainWindow.cpp
index dd8b7f3..e2884bf 100644
--- a/demo/MainWindow.cpp
+++ b/demo/MainWindow.cpp
@@ -671,11 +671,11 @@ CMainWindow::CMainWindow(QWidget *parent) :
 	d->DockManager = new CDockManager(this);
 
  #if (QT_VERSION < QT_VERSION_CHECK(6, 0, 0))
-	connect(d->PerspectiveComboBox, SIGNAL(activated(const QString&)),
-		d->DockManager, SLOT(openPerspective(const QString&)));
+	connect(d->PerspectiveComboBox, SIGNAL(activated(QString)),
+        d->DockManager, SLOT(openPerspective(QString)));
  #else
-    connect(d->PerspectiveComboBox, SIGNAL(textActivated(const QString&)),
-        d->DockManager, SLOT(openPerspective(const QString&)));
+	connect(d->PerspectiveComboBox, SIGNAL(textActivated(QString)),
+        d->DockManager, SLOT(openPerspective(QString)));
  #endif
 
 	d->createContent();
diff --git a/examples/centralwidget/mainwindow.cpp b/examples/centralwidget/mainwindow.cpp
index fe1b347..b1eaec7 100644
--- a/examples/centralwidget/mainwindow.cpp
+++ b/examples/centralwidget/mainwindow.cpp
@@ -96,8 +96,8 @@ void CMainWindow::createPerspectiveUi()
 	PerspectiveComboBox = new QComboBox(this);
 	PerspectiveComboBox->setSizeAdjustPolicy(QComboBox::AdjustToContents);
 	PerspectiveComboBox->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
-	connect(PerspectiveComboBox, SIGNAL(activated(const QString&)),
-		DockManager, SLOT(openPerspective(const QString&)));
+	connect(PerspectiveComboBox, SIGNAL(activated(QString)),
+		DockManager, SLOT(openPerspective(QString)));
 	PerspectiveListAction->setDefaultWidget(PerspectiveComboBox);
 	ui->toolBar->addSeparator();
 	ui->toolBar->addAction(PerspectiveListAction);
diff --git a/examples/emptydockarea/mainwindow.cpp b/examples/emptydockarea/mainwindow.cpp
index 2dbe99c..6e8dffe 100644
--- a/examples/emptydockarea/mainwindow.cpp
+++ b/examples/emptydockarea/mainwindow.cpp
@@ -98,8 +98,8 @@ void CMainWindow::createPerspectiveUi()
 	PerspectiveComboBox = new QComboBox(this);
 	PerspectiveComboBox->setSizeAdjustPolicy(QComboBox::AdjustToContents);
 	PerspectiveComboBox->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
-	connect(PerspectiveComboBox, SIGNAL(activated(const QString&)),
-		DockManager, SLOT(openPerspective(const QString&)));
+	connect(PerspectiveComboBox, SIGNAL(activated(QString)),
+		DockManager, SLOT(openPerspective(QString)));
 	PerspectiveListAction->setDefaultWidget(PerspectiveComboBox);
 	ui->toolBar->addSeparator();
 	ui->toolBar->addAction(PerspectiveListAction);
diff --git a/src/DockAreaTabBar.cpp b/src/DockAreaTabBar.cpp
index d06313a..1b26435 100644
--- a/src/DockAreaTabBar.cpp
+++ b/src/DockAreaTabBar.cpp
@@ -203,7 +203,7 @@ void CDockAreaTabBar::insertTab(int Index, CDockWidgetTab* Tab)
 	connect(Tab, SIGNAL(clicked()), this, SLOT(onTabClicked()));
 	connect(Tab, SIGNAL(closeRequested()), this, SLOT(onTabCloseRequested()));
 	connect(Tab, SIGNAL(closeOtherTabsRequested()), this, SLOT(onCloseOtherTabsRequested()));
-	connect(Tab, SIGNAL(moved(const QPoint&)), this, SLOT(onTabWidgetMoved(const QPoint&)));
+	connect(Tab, SIGNAL(moved(QPoint)), this, SLOT(onTabWidgetMoved(QPoint)));
 	connect(Tab, SIGNAL(elidedChanged(bool)), this, SIGNAL(elidedChanged(bool)));
 	Tab->installEventFilter(this);
 	Q_EMIT tabInserted(Index);
diff --git a/src/DockAreaTitleBar.cpp b/src/DockAreaTitleBar.cpp
index 8651d29..838ed34 100644
--- a/src/DockAreaTitleBar.cpp
+++ b/src/DockAreaTitleBar.cpp
@@ -202,7 +202,7 @@ void DockAreaTitleBarPrivate::createTabBar()
 	_this->connect(TabBar, SIGNAL(tabOpened(int)), SLOT(markTabsMenuOutdated()));
 	_this->connect(TabBar, SIGNAL(tabInserted(int)), SLOT(markTabsMenuOutdated()));
 	_this->connect(TabBar, SIGNAL(removingTab(int)), SLOT(markTabsMenuOutdated()));
-	_this->connect(TabBar, SIGNAL(tabMoved(int, int)), SLOT(markTabsMenuOutdated()));
+	_this->connect(TabBar, SIGNAL(tabMoved(int,int)), SLOT(markTabsMenuOutdated()));
 	_this->connect(TabBar, SIGNAL(currentChanged(int)), SLOT(onCurrentTabChanged(int)));
 	_this->connect(TabBar, SIGNAL(tabBarClicked(int)), SIGNAL(tabBarClicked(int)));
 	_this->connect(TabBar, SIGNAL(elidedChanged(bool)), SLOT(markTabsMenuOutdated()));
diff --git a/src/DockFocusController.cpp b/src/DockFocusController.cpp
index f1e9282..f888ed3 100644
--- a/src/DockFocusController.cpp
+++ b/src/DockFocusController.cpp
@@ -223,8 +223,8 @@ CDockFocusController::CDockFocusController(CDockManager* DockManager) :
 	d(new DockFocusControllerPrivate(this))
 {
 	d->DockManager = DockManager;
-	connect(QApplication::instance(), SIGNAL(focusChanged(QWidget*, QWidget*)),
-			this, SLOT(onApplicationFocusChanged(QWidget*, QWidget*)));
+	connect(QApplication::instance(), SIGNAL(focusChanged(QWidget*,QWidget*)),
+			this, SLOT(onApplicationFocusChanged(QWidget*,QWidget*)));
 	connect(QApplication::instance(), SIGNAL(focusWindowChanged(QWindow*)),
 			this, SLOT(onFocusWindowChanged(QWindow*)));
 	connect(d->DockManager, SIGNAL(stateRestored()), SLOT(onStateRestored()));