Feb 13, 2010 · Qt Creator uses the language setting of the system it runs on. On Linux systems you can also override that language by setting the LANG environment variable prior to starting Qt Creator, e.g. on the command line LANG=de ./qtcreator will run Qt Creator with german interface.

Jul 6, 2011 · @user662285: You will have a default language in your ui files and source code. (e.g.: English). Qt could collect all of the strings from your app. You translate all of them and generate a new language file, what could be built in your app or in to a dll/so. When your application load this dll, it is possible to change the language.

Mar 12, 2013 · in my app I need internationalization. Say I have created several .ts file for different languages e.g., German, French, etc. - together with translated phrases. Now, say the user wants to change ...

The native language of Qt is C++, but bindings are provided for other languages, many of them. Some of these bindings are provided by Trolltech (well, now it's Nokia), some by third parties. Bindings are not alternative implementations of Qt for other languages, but rather special add-ons to those languages allowing to use C++ Qt binaries.

May 11, 2010 · Put shortly: For those familiar with language bindings in Qt and Gtk+. E.g. python and ruby. Are there any quality or capability difference? More background: I know C++ and Qt very well. Minimal experience with Gtk+. I know C++ is not ideal for language bindings due to the lack of a well defined ABI (application binary interface).

Nov 14, 2017 · Qt has translation support. Look into Qt Linguist. Basically, you mark all you hard coded texts with a call to QObject::tr, e.g. lbl->setText(tr("My text to translate")); Qt Linguist parses all source files and UI forms for such calls (using lupdate.exe) and builds a ts file. With the Qt Linguist GUI application, you can translate them.

I've found 2 ways to solve my problem. The Qt way is to use QLocale::system().uiLanguages(). On my system it returns a list with a single item "en-US". The problem with that is I need a language name, like "english", so I'd have to add a map for converting language code to language name. It's no big deal, but I've decided to use WinAPI:

May 9, 2009 · When specifying only a language (like de), Qt will automatically expand it with a default country and return that in QLocale::system().name(), for example de_DE. When specifying a wrong value (such as xy), Qt will return the default C locale from QLocale::system().name().

Nov 1, 2018 · Changing language in Qt on runtime. 1. installTranslator method of QApplication don't change language. 4.

Nov 13, 2009 · Qt uses the Meta Object Compiler (MOC) to make the signal and slot magic work (e.g. make function callbacks based on user signal and slot definitions). So Qt isn’t actuall C++, but is really Qt’s own syntax, which is a lot like C++, but with signals and slots. This makes ‘external “c”’ useless.