Add example project.

.gitignore

@@ -0,0 +1,56 @@
+# C++ objects and libs
+*.slo
+*.lo
+*.o
+*.a
+*.la
+*.lai
+*.so
+*.so.*
+*.dll
+*.dylib
+
+# Qt-es
+object_script.*.Release
+object_script.*.Debug
+*_plugin_import.cpp
+/.qmake.cache
+/.qmake.stash
+*.pro.user
+*.pro.user.*
+*.qbs.user
+*.qbs.user.*
+*.moc
+moc_*.cpp
+moc_*.h
+qrc_*.cpp
+ui_*.h
+*.qmlc
+*.jsc
+Makefile*
+*build-*
+build/
+*.qm
+*.prl
+*.qmlls.ini
+
+# Qt unit tests
+target_wrapper.*
+
+# QtCreator
+*.autosave
+
+# QtCreator Qml
+*.qmlproject.user
+*.qmlproject.user.*
+
+# QtCreator CMake
+CMakeLists.txt.user*
+
+# QtCreator 4.8< compilation database
+compile_commands.json
+
+# QtCreator local machine specific files for imported projects
+*creator.user*
+
+*_qmlcache.qrc

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.5)
+
+project(hello-world-qt VERSION 1.0)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+find_package(Qt6 COMPONENTS Widgets REQUIRED)
+
+add_executable(hello-world-qt main.cpp)
+
+target_link_libraries(hello-world-qt PRIVATE Qt6::Widgets)

README.md

@@ -1,3 +1,24 @@
-# template-mit
+# Hello World Qt
 
-Template with MIT license, protected `main` branch, and available `dev` branch.
+A simple Qt application that displays "Hello World!" in a window with a close button.
+
+## Building
+
+```bash
+mkdir build
+cd build
+cmake ..
+make
+```
+
+## Running
+
+```bash
+./hello-world-qt
+```
+
+## Dependencies
+
+- Qt 6
+- CMake
+- C++17 compiler

main.cpp

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+#include <QApplication>
+#include <QMainWindow>
+#include <QPushButton>
+#include <QLabel>
+#include <QVBoxLayout>
+
+int main(int argc, char *argv[]) {
+    QApplication app(argc, argv);
+
+    QMainWindow mainWindow;
+    mainWindow.setWindowTitle("Hello World Qt");
+    mainWindow.resize(400, 300);
+
+    // Create central widget and layout
+    QWidget *centralWidget = new QWidget(&mainWindow);
+    QVBoxLayout *layout = new QVBoxLayout(centralWidget);
+
+    // Create hello world label
+    QLabel *helloLabel = new QLabel("Hello World!", centralWidget);
+    helloLabel->setAlignment(Qt::AlignCenter);
+    helloLabel->setStyleSheet("font-size: 24px; font-weight: bold;");
+
+    // Create close button
+    QPushButton *closeButton = new QPushButton("Close", centralWidget);
+    closeButton->setStyleSheet("font-size: 16px; padding: 10px;");
+
+    // Connect button to close action
+    QObject::connect(closeButton, &QPushButton::clicked, &mainWindow, &QMainWindow::close);
+
+    // Add widgets to layout
+    layout->addStretch();
+    layout->addWidget(helloLabel);
+    layout->addWidget(closeButton);
+    layout->addStretch();
+
+    // Set central widget
+    mainWindow.setCentralWidget(centralWidget);
+
+    // Show the window
+    mainWindow.show();
+
+    return app.exec();
+}