diff --git a/2024/tp3/.gitignore b/2024/tp3/.gitignore
new file mode 100644
index 0000000..aa3808c
--- /dev/null
+++ b/2024/tp3/.gitignore
@@ -0,0 +1,82 @@
+# This file is used to ignore files which are generated
+# ----------------------------------------------------------------------------
+
+*~
+*.autosave
+*.a
+*.core
+*.moc
+*.o
+*.obj
+*.orig
+*.rej
+*.so
+*.so.*
+*_pch.h.cpp
+*_resource.rc
+*.qm
+.#*
+*.*#
+core
+!core/
+tags
+.DS_Store
+.directory
+*.debug
+Makefile*
+*.prl
+*.app
+moc_*.cpp
+ui_*.h
+qrc_*.cpp
+Thumbs.db
+*.res
+*.rc
+/.qmake.cache
+/.qmake.stash
+
+# qtcreator generated files
+*.pro.user*
+*.qbs.user*
+CMakeLists.txt.user*
+
+# xemacs temporary files
+*.flc
+
+# Vim temporary files
+.*.swp
+
+# Visual Studio generated files
+*.ib_pdb_index
+*.idb
+*.ilk
+*.pdb
+*.sln
+*.suo
+*.vcproj
+*vcproj.*.*.user
+*.ncb
+*.sdf
+*.opensdf
+*.vcxproj
+*vcxproj.*
+
+# MinGW generated files
+*.Debug
+*.Release
+
+# Python byte code
+*.pyc
+
+# Binaries
+# --------
+*.dll
+*.exe
+
+# Directories with generated files
+.moc/
+.obj/
+.pch/
+.rcc/
+.uic/
+/build*/
diff --git a/2024/tp3/main.cpp b/2024/tp3/main.cpp
new file mode 100644
index 0000000..38f5bd3
--- /dev/null
+++ b/2024/tp3/main.cpp
@@ -0,0 +1,37 @@
+#include <QGuiApplication>
+#include <QQmlApplicationEngine>
+#include <QDebug>
+
+#include "synchronisable.h"
+
+int main(int argc, char *argv[])
+{
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
+    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
+#endif
+    QGuiApplication app(argc, argv);
+
+    QQmlApplicationEngine engine;
+    const QUrl url(QStringLiteral("qrc:/main.qml"));
+    QObject::connect(
+        &engine,
+        &QQmlApplicationEngine::objectCreated,
+        &app,
+        [url](QObject *obj, const QUrl &objUrl) {
+            if (!obj && url == objUrl)
+                QCoreApplication::exit(-1);
+        },
+        Qt::QueuedConnection);
+
+
+    Synchronisable s{42}, copie{1};
+
+    s.setCpt(122);
+
+
+    qDebug() << s.cpt() << "\n";
+
+    engine.load(url);
+
+    return app.exec();
+}
diff --git a/2024/tp3/main.qml b/2024/tp3/main.qml
new file mode 100644
index 0000000..e2d2e56
--- /dev/null
+++ b/2024/tp3/main.qml
@@ -0,0 +1,9 @@
+import QtQuick 2.15
+import QtQuick.Window 2.15
+
+Window {
+    width: 640
+    height: 480
+    visible: true
+    title: qsTr("Hello World")
+}
diff --git a/2024/tp3/qml.qrc b/2024/tp3/qml.qrc
new file mode 100644
index 0000000..5f6483a
--- /dev/null
+++ b/2024/tp3/qml.qrc
@@ -0,0 +1,5 @@
+<RCC>
+    <qresource prefix="/">
+        <file>main.qml</file>
+    </qresource>
+</RCC>
diff --git a/2024/tp3/synchronisable.cpp b/2024/tp3/synchronisable.cpp
new file mode 100644
index 0000000..d5ca4a3
--- /dev/null
+++ b/2024/tp3/synchronisable.cpp
@@ -0,0 +1,19 @@
+#include "synchronisable.h"
+
+Synchronisable::Synchronisable(int cpt, QObject *parent)
+    : QObject{parent},
+    m_cpt{cpt}
+{}
+
+int Synchronisable::cpt() const
+{
+    return m_cpt;
+}
+
+void Synchronisable::setCpt(int newCpt)
+{
+    if (m_cpt == newCpt)
+        return;
+    m_cpt = newCpt;
+    emit cptChanged(m_cpt);
+}
diff --git a/2024/tp3/synchronisable.h b/2024/tp3/synchronisable.h
new file mode 100644
index 0000000..caa19ed
--- /dev/null
+++ b/2024/tp3/synchronisable.h
@@ -0,0 +1,22 @@
+#ifndef SYNCHRONISABLE_H
+#define SYNCHRONISABLE_H
+
+#include <QObject>
+
+class Synchronisable : public QObject
+{
+    Q_OBJECT
+    Q_PROPERTY(int cpt READ cpt WRITE setCpt NOTIFY cptChanged FINAL)
+public:
+    explicit Synchronisable(int cpt = 0, QObject *parent = nullptr);
+
+    int cpt() const;
+    void setCpt(int newCpt);
+
+signals:
+    void cptChanged(int);
+private:
+    int m_cpt;
+};
+
+#endif // SYNCHRONISABLE_H
diff --git a/2024/tp3/tp3.pro b/2024/tp3/tp3.pro
new file mode 100644
index 0000000..69d1617
--- /dev/null
+++ b/2024/tp3/tp3.pro
@@ -0,0 +1,25 @@
+QT += quick
+
+# You can make your code fail to compile if it uses deprecated APIs.
+# In order to do so, uncomment the following line.
+#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
+
+SOURCES += \
+        main.cpp \
+        synchronisable.cpp
+
+RESOURCES += qml.qrc
+
+# Additional import path used to resolve QML modules in Qt Creator's code model
+QML_IMPORT_PATH =
+
+# Additional import path used to resolve QML modules just for Qt Quick Designer
+QML_DESIGNER_IMPORT_PATH =
+
+# Default rules for deployment.
+qnx: target.path = /tmp/$${TARGET}/bin
+else: unix:!android: target.path = /opt/$${TARGET}/bin
+!isEmpty(target.path): INSTALLS += target
+
+HEADERS += \
+    synchronisable.h