Adding a QMenuBar to a ui...

[SPlatten]

I'm following:
https://www.youtube.com/watch?v=E9eQO5czNrw

My ui file:

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>clsMainWnd</class>
 <widget class="QMainWindow" name="clsMainWnd">
  <property name="windowModality">
   <enum>Qt::NonModal</enum>
  </property>
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>196</width>
    <height>137</height>
   </rect>
  </property>
  <property name="focusPolicy">
   <enum>Qt::NoFocus</enum>
  </property>
  <property name="windowTitle">
   <string notr="true"/>
  </property>
  <property name="toolTip">
   <string notr="true"/>
  </property>
  <property name="statusTip">
   <string notr="true"/>
  </property>
  <widget class="QWidget" name="centralWidget">
   <property name="styleSheet">
    <string notr="true">background-color:#ff333333</string>
   </property>
   <widget class="QLabel" name="lblHdr">
    <property name="geometry">
     <rect>
      <x>7</x>
      <y>0</y>
      <width>161</width>
      <height>38</height>
     </rect>
    </property>
    <property name="text">
     <string notr="true"/>
    </property>
    <property name="pixmap">
     <pixmap resource="clsmainwnd.qrc">:/CMPY_LOGO</pixmap>
    </property>
    <property name="scaledContents">
     <bool>false</bool>
    </property>
    <property name="alignment">
     <set>Qt::AlignCenter</set>
    </property>
   </widget>
   <widget class="QLabel" name="lblAppTitle">
    <property name="geometry">
     <rect>
      <x>8</x>
      <y>40</y>
      <width>161</width>
      <height>20</height>
     </rect>
    </property>
    <property name="toolTip">
     <string>XML Multi-Platform Application Manager</string>
    </property>
    <property name="styleSheet">
     <string notr="true">color:#ffffffff;</string>
    </property>
    <property name="text">
     <string>XMLMPAM</string>
    </property>
    <property name="alignment">
     <set>Qt::AlignCenter</set>
    </property>
    <property name="openExternalLinks">
     <bool>true</bool>
    </property>
   </widget>
   <widget class="QLabel" name="lblWidth">
    <property name="geometry">
     <rect>
      <x>8</x>
      <y>80</y>
      <width>91</width>
      <height>20</height>
     </rect>
    </property>
    <property name="styleSheet">
     <string notr="true">color:#ffffffff;</string>
    </property>
    <property name="text">
     <string>Display width: </string>
    </property>
    <property name="alignment">
     <set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignVCenter</set>
    </property>
   </widget>
   <widget class="QLabel" name="lblHeight">
    <property name="geometry">
     <rect>
      <x>8</x>
      <y>60</y>
      <width>91</width>
      <height>20</height>
     </rect>
    </property>
    <property name="styleSheet">
     <string notr="true">color:#ffffffff;</string>
    </property>
    <property name="text">
     <string>Display height:</string>
    </property>
    <property name="alignment">
     <set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignVCenter</set>
    </property>
   </widget>
   <widget class="QLabel" name="lblWidthVal">
    <property name="geometry">
     <rect>
      <x>110</x>
      <y>80</y>
      <width>60</width>
      <height>20</height>
     </rect>
    </property>
    <property name="styleSheet">
     <string notr="true">color:#ffffffff;</string>
    </property>
    <property name="text">
     <string>0</string>
    </property>
    <property name="alignment">
     <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
    </property>
   </widget>
   <widget class="QLabel" name="lblHeightVal">
    <property name="geometry">
     <rect>
      <x>110</x>
      <y>60</y>
      <width>60</width>
      <height>20</height>
     </rect>
    </property>
    <property name="styleSheet">
     <string notr="true">color:#ffffffff;</string>
    </property>
    <property name="text">
     <string>0</string>
    </property>
    <property name="alignment">
     <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
    </property>
   </widget>
  </widget>
  <widget class="QMenuBar" name="mnuBar">
   <property name="geometry">
    <rect>
     <x>0</x>
     <y>0</y>
     <width>196</width>
     <height>24</height>
    </rect>
   </property>
   <widget class="QMenu" name="menuFile">
    <property name="title">
     <string>File</string>
    </property>
    <addaction name="actionNew"/>
    <addaction name="actionOpen"/>
    <addaction name="actionExit"/>
   </widget>
   <addaction name="menuFile"/>
  </widget>
  <action name="actionNew">
   <property name="text">
    <string>New</string>
   </property>
   <property name="shortcut">
    <string>Ctrl+N</string>
   </property>
  </action>
  <action name="actionOpen">
   <property name="text">
    <string>Open</string>
   </property>
   <property name="shortcut">
    <string>Ctrl+O</string>
   </property>
  </action>
  <action name="actionExit">
   <property name="text">
    <string>Exit</string>
   </property>
   <property name="shortcut">
    <string>Ctrl+X</string>
   </property>
  </action>
 </widget>
 <layoutdefault spacing="6" margin="11"/>
 <resources>
  <include location="clsmainwnd.qrc"/>
 </resources>
 <connections/>
</ui>

Whilst I can see the menu and the submenu in Qt Creator, when I build and launch the application I am not seeing the menu bar or the menus.

This is my class constructor:

clsMainWnd::clsMainWnd(QWidget* pobjParent) : QMainWindow(pobjParent)
                                            , ui(new Ui::clsMainWnd) {
//Check that window doesn't already exist
    Q_ASSERT_X(mspobjAppWnd==nullptr, "clsMainWnd", "mspobjAppWnd");
//Modify the window to occupy full screen with no window dressing
//    setWindowFlags(Qt::CustomizeWindowHint
//                 | Qt::FramelessWindowHint
//                 | Qt::WindowStaysOnTopHint);
//Get desktop geometry   
    msrctDesktop = screen()->geometry();
//Save pointer to main window
    mspobjAppWnd = this;
//Set-up the user interface
    ui->setupUi(this);
    QString strTemp;
    strTemp = QString::asprintf("%dpx", msrctDesktop.width());
    ui->lblWidthVal->setText(static_cast<const QString>(strTemp));
    strTemp = QString::asprintf("%dpx", msrctDesktop.height());
    ui->lblHeightVal->setText(static_cast<const QString>(strTemp));
//Set-up one second timer to perform house keeping functions
    QTimer::singleShot(REMOVE_SPLASH_TIME, this, &clsMainWnd::onRemoveSplash);
//Start socket server thread to listen to modules
//This application is the socket server, when modules are started they
//will send a message to this application via the server socket
    mspsckServer = new clsListener(clsListener::uint16NextPort(), this);
}

This is just a demo, once its working I have other plans.

[jsulm]

@SPlatten In MacOS the menu of every application is in the top bar, not in the application window itself.

[jsulm]

@SPlatten Your ui files works fine for me on Linux. On what OS are you?

[SPlatten]

@jsulm

macOS Monterey Version 12.7.1

Qt Creator 11.0.3
Based on Qt 6.4.3 (Clang 13.0 (Apple), x86_64)
Built on Sep 27 2023 06:47:32

I'm using 5.15.2

[SPlatten]

@jsulm , I think I've found it, it could be this code in the constructor that Is changing the geometry and probably displaying the labels over the menu:

    ui->setupUi(this);
    QString strTemp;
    strTemp = QString::asprintf("%dpx", msrctDesktop.width());
    ui->lblWidthVal->setText(static_cast<const QString>(strTemp));
    strTemp = QString::asprintf("%dpx", msrctDesktop.height());
    ui->lblHeightVal->setText(static_cast<const QString>(strTemp));

[Edit] no that wasn't it either.

And obviously I read it completely wrong, that simply sets the label text.

[jsulm]

@SPlatten In MacOS the menu of every application is in the top bar, not in the application window itself.

[SPlatten]

@jsulm Doh!

Of course!, you are correct and it does work, I wasn't looking for it there.