Qt Examples

shows how to use Qt widgets only by programming code (c++17).

Hello World

• HelloWorldEmoticons The classic first application "Hello, world!" with QLabel and emoticons.
• HelloWorldLabel The classic first application "Hello, world!" with QLabel.
• HelloWorldMessageBox The classic first application "Hello, world!" with QMessageBox.
• HelloWorldPaint The classic first application "Hello, world!" with QPainter.

Application and messages

• Application shows how to create an application with QApplication.
• DarkMode shows how to create a dark mode application.

Common Controls

• CheckBox shows how to create a check box with QCheckBox.
• CheckedListWidget shows how to create a checked list widget with QListWidget.
• ComboBox shows how to create a combo box with QComboBox.
• Dial shows how to create a dialx with QDial.
• DoubleSpinBox shows how to create a double spin box with QDoubleSpinBox.
• LCDNumber shows how to create a LCD number with QLCDNumber.
• Label shows how to create a label with QLabel.
• LineEdit shows how to create a line edit with QLineEdit.
• ListView shows how to create a list view with QListView.
• ListView2 shows how to create a list view with QTreeView.
• ListWidget shows how to create a list widget with QListWidget.
• PictureBox shows how to create a picture box with QLabel.
• PictureBox2 shows how to create a picture box with QGraphicsPixmapItem.
• ProgressBar shows how to create a ProgressBar with QProgress.
• PushButton shows how to create a button and Event Click with QPushButton.
• RadioButton shows how to create a radio button with QRadioButton.
• Slider shows how to create a slider with QSlider.
• SpinBox shows how to create a spin box with QSpinBox.
• SpinButton shows how to create a spin button with QSpinBox.
• ToggleButton shows how to create a toggle button with QPushButton.
• TreeView shows how to create a three view with QTreeView.
• TreeWidget shows how to create a three widget with QTreeWidget.
• Widget shows how to create a widget with QWidget.

Custom Controls

• Line shows how to create a custom widget line with QFrame.

Containers

• Frame shows how to create a frame with QFrame.
• GroupBox shows how to create a group box with QGroupBox.
• TabWidget shows how to create a tab widget with QTabWidget.
• Window shows how to create a window with QMainWindow.

Menus and toolbars

• MenuBar shows how to create a menu bar with QMenu and QAction.
• StatusBar shows how to create a status bar with QStatusBar.
• ToolBar shows how to create a toolbar bar with QToolBar.

Components

• Cursors shows how to associate cursor to widget with QCursor.
• Timer shows how to create a Timer with QTimer.

Dialogs

• ColorDialog shows how to create a ColorDialog with QColorDalog.
• FolderBrowserDialog shows how to create a FolderBrowserDialog with QFileDialog.
• FontDialog shows how to create a FontDialog with QFontDialog.
• MessageBox shows how to create a MessageBox with QMessageBox.
• OpenFileDialog shows how to create an OpenFileDialog with QFileDialog.
• SaveFileDialog shows how to create an SaveFileDialog with QFileDialog.

Others

• LCDNumber2 shows how to create a LCD number with QLCDNumber.
• Wiggly shows how to animate a user control using QBasicTimer and timerEvent(). In addition, the example demonstrates how to use QFontMetrics to determine the size of text on screen.

Download

git clone https://github.com/gammasoft71/Examples_Qt.git

Generate and build

Qt Creator

To build these projects, open each project.pro file with Qt Creator.

CMake

To build this project, open "Terminal" and type following lines:

Set "CMAKE_PREFIX_PATH" with Qt5 install path.

Windows :

mkdir build
cd build
cmake ..
start ./Qt.Examples.sln

macOS :

mkdir build
cd build
cmake .. -G "Xcode"
open ./Qt.Examples.xcodeproj

Linux :

mkdir build
cd build
cmake .. 
cmake --build . --config Debug

Remarks

This project run with Qt (and CMake).