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User Interface

The Qt Extended user interface comprises the following major features:


Qt Extended has a powerful theming engine, allowing much of the user interface to be customized and personalized. Appearance settings for theme, color scheme, fonts and background settings are used to customize features such as, titles, home screen, context bars and icons and other window decorations.

For further information refer to: Qt Extended Theming.

Server Widgets

The concept of server widgets allows the customization of the Qt Extended main server widget beyond what is already possible due to theming. The main parts of the user interface are separated via abstract widgets which allows the replacement of a particular component such as the launcher or the call screen without having to worry about implications for other UI components.

For further information refer to: Server Widgets.


Qt Extended supports internationalization of all applications. In some cases internationalization is simple, for example, making a US application accessible to Australian or British users may require little more than a few spelling corrections. But to make a US application usable by Japanese users, or a Korean application usable by German users, requires that the software operate not only in different languages, but use different input techniques, character encodings and presentation conventions.

Qt Extended provides built-in support for all supported languages to make the internationalization process as painless as possible. The built-in font engine is capable of correctly rendering text that contains characters from a variety of different writing systems at the same time.

For further information refer to: Qt Extended Internationalization.

Input Methods

Qt Extended provides two input channels to address the issue of text input , given the lack of both screen real-estate and convenient keyboards typical of mobile devices. The Phone Keys input method is intended for phones with the common 0-9, # and 0 buttons. The Full Screen Handwriting input method is intended primarily for touch screen devices, but can be used with any type of pointing device ice, including a mouse. These input methods are not mutually exclusive, and a device equipped with both phone keys and a pointing device can take advantage of either or both.

For further information refer to: Qt Extended Input Methods.

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Qt Extended 4.4.3