add code

4DemoApp/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.16)
+
+project(4DemoApp VERSION 0.1 LANGUAGES CXX)
+
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+find_package(Qt6 REQUIRED COMPONENTS Quick)
+
+qt_standard_project_setup(REQUIRES 6.5)
+
+qt_add_executable(app4DemoApp
+    main.cpp
+)
+
+qt_add_qml_module(app4DemoApp
+    URI 4DemoApp
+    VERSION 1.0
+    QML_FILES
+        Main.qml MButton.qml
+)
+
+# Qt for iOS sets MACOSX_BUNDLE_GUI_IDENTIFIER automatically since Qt 6.1.
+# If you are developing for iOS or macOS you should consider setting an
+# explicit, fixed bundle identifier manually though.
+set_target_properties(app4DemoApp PROPERTIES
+#    MACOSX_BUNDLE_GUI_IDENTIFIER com.example.app4DemoApp
+    MACOSX_BUNDLE_BUNDLE_VERSION ${PROJECT_VERSION}
+    MACOSX_BUNDLE_SHORT_VERSION_STRING ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}
+    MACOSX_BUNDLE TRUE
+    WIN32_EXECUTABLE TRUE
+)
+
+target_link_libraries(app4DemoApp
+    PRIVATE Qt6::Quick
+)
+
+include(GNUInstallDirs)
+install(TARGETS app4DemoApp
+    BUNDLE DESTINATION .
+    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+)

4DemoApp/MButton.qml

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+import QtQuick
+
+Item {
+    id: rootId
+    property alias buttonText: buttonTextId.text
+    width: containerRectId.width
+    height: containerRectId.height
+
+    signal buttonClicked
+
+
+    Rectangle {
+        id: containerRectId
+        signal greet(string message)
+        color: "red"
+        border {
+            color: "blue"
+            width: 3
+        }
+
+        width: buttonTextId.implicitWidth + 20
+        height: buttonTextId.implicitHeight + 20
+
+        Text {
+            id: buttonTextId
+            text: "MButton"
+            anchors.centerIn: parent
+        }
+
+        MouseArea {
+            id: mouseAreaId
+            anchors.fill: parent
+            hoverEnabled: true
+            // onClicked: {
+            //     // console.log("Clicked on button" + buttonTextId.text)
+            //     rootId.buttonClicked()
+            // }
+            // onClicked: function(mouse) {
+            //     console.log(mouse.x)
+            // }
+            // onClicked: (mouse_param) => console.log(mouse_param.x)
+
+            // onEntered: {
+            //     console.log("enter")
+            // }
+        }
+        onGreet: function(message) {
+            console.log("Greeting with message: " + message);
+        }
+        function respond_your_way(message) {
+            console.log("Responding our way;Greeting with message: " + message);
+        }
+
+
+        Connections {
+            target: mouseAreaId
+            function onClicked() {
+                // console.log("Hello")
+                containerRectId.greet("Hello Lenn")
+            }
+            function onDoubleClicked(mouse) {
+                console.log("DoubleClicked at: " + mouse.x)
+            }
+        }
+
+        Component.onCompleted: {
+            containerRectId.greet.connect(containerRectId.respond_your_way)
+        }
+    }
+}

4DemoApp/Main.qml

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+import QtQuick
+
+Window {
+    width: 640
+    height: 480
+    visible: true
+    title: qsTr("Hello World")
+
+    // Item {
+    //     id: containerItemId
+    //     x: 50
+    //     y: 50
+    //     width: 600
+    //     height: 300
+
+    //     Rectangle {
+    //         anchors.fill: parent
+    //         color: "beige"
+    //         // border.color: "black"
+    //         // border.width: 10
+    //         border {
+    //             color: "black"
+    //             width: 10
+    //         }
+    //     }
+
+    //     Rectangle {
+    //         x: 0
+    //         y: 10
+    //         width: 50
+    //         height: 50
+    //         color: "red"
+    //     }
+
+    //     Rectangle {
+    //         x: 60
+    //         y: 10
+    //         width: 50
+    //         height: 50
+    //         color: "green"
+    //     }
+
+    //     Image {
+    //         x: 150
+    //         y:50
+    //         width: 100
+    //         height: 100
+    //         // source: "qrc:/...."
+    //     }
+    // }
+
+    MButton {
+        id: button1
+        buttonText: "Button1"
+        // color: "grey"
+        onButtonClicked: {
+            console.log("Clicked on button1")
+        }
+    }
+    MButton {
+        id: button2
+        anchors.top: button1.bottom
+        buttonText: "Button2"
+        // color: "yellow"
+        onButtonClicked: {
+            console.log("Clicked on button1")
+        }
+    }
+}

4DemoApp/main.cpp

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+#include <QGuiApplication>
+#include <QQmlApplicationEngine>
+
+int main(int argc, char *argv[])
+{
+    QGuiApplication app(argc, argv);
+
+    QQmlApplicationEngine engine;
+    QObject::connect(
+        &engine,
+        &QQmlApplicationEngine::objectCreationFailed,
+        &app,
+        []() { QCoreApplication::exit(-1); },
+        Qt::QueuedConnection);
+    engine.loadFromModule("4DemoApp", "Main");
+
+    return app.exec();
+}