User Interfaces

The Qt framework's main user interface technologies are Qt Quick Controls and Qt Widgets. Qt Quick Control interfaces are fluid, dynamic, and are best on touch interfaces. Qt Widgets are for creating complex desktop applications. You can create Qt Quick Controls and Qt Widgets interfaces with the target platform's native look and feel.

Building UIs with Qt Quick Controls

Qt Quick Controls is for creating dynamic and fluid user interfaces. The Qt Quick Controls module supplies QML types such as buttons, dialogs, and menus. You can use QML, a declarative language, to build the UI and JavaScript to implement the logic.

The following list contains related overviews:

Qt Widgets User Interfaces

Qt Widgets are the user interface elements that are typical in desktop environments. The widgets integrate well to the underlying platform providing native look and feel on Windows, Linux and macOS. The widgets are mature and feature rich user interface elements suitable for mostly traditional user interfaces. In contrast to Qt Quick, the widgets are for creating large desktop applications and less suited for creating touch-centric applications with fluid interfaces.

The following list contains related overviews for Qt Widgets:

Comparison of UI Interfaces

The following table compares Qt Widgets and Qt Quick interfaces.

Qt Quick / Qt Quick ControlsQt WidgetsComments
Used language(s)QML/JSC++
Native look and feelQt Widgets and Qt Quick Controls support native look and feel on their target platforms.
Custom stylingQt Widgets provide customization with style sheets and Qt Quick Controls has a selection of customizable styles.
Fluid animated UIsQt Widgets do not scale well for animations. Qt Quick Controls offers a convenient and natural way to implement animations in a declarative manner.
Touch screenQt Widgets often require a mouse cursor for good interaction, whereas Qt Quick Controls provides QML types for touch interaction.
Standard industry widgetsQt Widgets provide all the bells and whistles, developed over two decades, needed for building standard industry type applications.
Model/View programmingQt Quick provides convenient views, but Qt Widgets provide more convenient and complete framework. In addition to Qt Quick views, Qt Quick Controls provide a TableView.
Rapid UI developmentQt Quick is an excellent choice for rapid UI prototyping and development.
HW accelerated graphicsQt provides full hardware acceleration for Qt Quick interfaces and Qt Widgets interfaces are rendered in software. The Graphics overview has more information.
Graphical effectsSeveral Qt Quick modules provide graphical effects and Qt Widgets interfaces can use Qt GUI for effects.
Rich text processingQt Widgets currently provide the most comprehensive base for implementing text editors. Qt's rich text document classes can also be utilized in Qt Quick and Qt Quick Controls' TextArea, but may require some C++ implementation.

The following pages contain more information about designing and developing user interfaces:

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