Internationalization with Qt Widgets

In the previous sections, we discussed how to create translation files and how to use QTranslator to load a translation file. Let's create a simple example using Qt Widgets and implement our learning.

Follow the subsequent steps to create the sample application:

1. Create a Qt Widgets-based application using Qt Creator's new project creation wizard and follow through the screens as discussed in earlier chapters.
2. On the Translation File screen, choose German (Germany) as the language option, or any preferred language.
3. Finish the project creation. You will see that Simplei18nDemo_de_DE.ts is created in your project structure.
4. Next, you add a QLabel to the .ui file and add Welcome text.
5. Next, run lupdate. You can run lupdate from the command line as well as from the Qt Creator interface, as shown in Figure 11.3:

   Figure 11.3 – Qt Linguist options in Qt Creator

6. When you run lupdate, you will see the following...