diff --git a/launcher/desktop/include/virtualdialog.h b/launcher/desktop/include/virtualdialog.h
index 1b41206..bc06267 100644
--- a/launcher/desktop/include/virtualdialog.h
+++ b/launcher/desktop/include/virtualdialog.h
@@ -11,7 +11,7 @@ class VirtualDialog : public QObject {
 public:
     VirtualDialog(DesktopInterface& interface, QWidget* parent = nullptr);
 
-    void setWindowTitle(QString title);
+    void setWindowTitle(const QString& title);
     void show();
     void hide();
     void close();
diff --git a/launcher/desktop/include/virtualwindow.h b/launcher/desktop/include/virtualwindow.h
index e2340eb..825e6b9 100644
--- a/launcher/desktop/include/virtualwindow.h
+++ b/launcher/desktop/include/virtualwindow.h
@@ -11,7 +11,7 @@ class VirtualWindow : public QObject {
 public:
     VirtualWindow(DesktopInterface& interface, QWidget* parent = nullptr);
 
-    void setWindowTitle(QString title);
+    void setWindowTitle(const QString& title);
     void setCentralWidget(QWidget* widget);
     void show();
     void showMaximized();
diff --git a/launcher/desktop/src/virtualdialog.cpp b/launcher/desktop/src/virtualdialog.cpp
index 4981548..3861a38 100644
--- a/launcher/desktop/src/virtualdialog.cpp
+++ b/launcher/desktop/src/virtualdialog.cpp
@@ -4,8 +4,8 @@
 
 #include "desktopinterface.h"
 
-VirtualDialog::VirtualDialog(DesktopInterface& interface, QWidget* widget) : interface(interface) {
-    if(interface.oneWindow) {
+VirtualDialog::VirtualDialog(DesktopInterface& interface, QWidget* widget) : interface(interface), QObject(widget) {
+    if (interface.oneWindow) {
         mdi_window = new QMdiSubWindow();
         mdi_window->setAttribute(Qt::WA_DeleteOnClose);
     } else {
@@ -15,8 +15,8 @@ VirtualDialog::VirtualDialog(DesktopInterface& interface, QWidget* widget) : int
     interface.addDialog(this);
 }
 
-void VirtualDialog::setWindowTitle(QString title) {
-    if(interface.oneWindow) {
+void VirtualDialog::setWindowTitle(const QString& title) {
+    if (interface.oneWindow) {
         mdi_window->setWindowTitle(title);
     } else {
         normal_dialog->setWindowTitle(title);
@@ -57,7 +57,7 @@ void VirtualDialog::setWindowModality(Qt::WindowModality modality) {
 
 void VirtualDialog::setLayout(QLayout* layout) {
     if(interface.oneWindow) {
-        QWidget* emptyWidget = new QWidget();
+        auto emptyWidget = new QWidget();
         emptyWidget->setLayout(layout);
 
         mdi_window->layout()->addWidget(emptyWidget);
diff --git a/launcher/desktop/src/virtualwindow.cpp b/launcher/desktop/src/virtualwindow.cpp
index 493458f..38cad98 100644
--- a/launcher/desktop/src/virtualwindow.cpp
+++ b/launcher/desktop/src/virtualwindow.cpp
@@ -5,8 +5,8 @@
 
 #include "desktopinterface.h"
 
-VirtualWindow::VirtualWindow(DesktopInterface& interface, QWidget* widget) : interface(interface) {
-    if(interface.oneWindow) {
+VirtualWindow::VirtualWindow(DesktopInterface& interface, QWidget* widget) : interface(interface), QObject(widget) {
+    if (interface.oneWindow) {
         mdi_window = new QMdiSubWindow();
         mdi_window->setAttribute(Qt::WA_DeleteOnClose);
     } else {
@@ -16,8 +16,8 @@ VirtualWindow::VirtualWindow(DesktopInterface& interface, QWidget* widget) : int
     interface.addWindow(this);
 }
 
-void VirtualWindow::setWindowTitle(QString title) {
-    if(interface.oneWindow) {
+void VirtualWindow::setWindowTitle(const QString& title) {
+    if (interface.oneWindow) {
         mdi_window->setWindowTitle(title);
     } else {
         normal_window->setWindowTitle(title);
@@ -51,14 +51,9 @@ void VirtualWindow::hide() {
 QMenuBar* VirtualWindow::menuBar() {
     if(interface.oneWindow) {
         if(mdi_window->layout()->menuBar() == nullptr) {
-            auto bar = new QMenuBar();
-            bar->setObjectName("test");
-            qDebug() << "new obj name: " << bar->objectName();
-            mdi_window->layout()->setMenuBar(bar);
+            mdi_window->layout()->setMenuBar(new QMenuBar());
         }
 
-        qDebug() << mdi_window->layout()->menuBar()->objectName();
-
         return dynamic_cast<QMenuBar*>(mdi_window->layout()->menuBar());
     } else {
         return normal_window->menuBar();