QTranslator

What:

  QTranslator can load a .ts file which include all string from tr() for dest location, e.g: Chinese.

 

How:

  1. tr("all string including %1").arg("abc")

  2. Setup .pro file

        TRANSLATIONS += app_en.ts app_zh.ts

  3. Generate .ts files

  lupdate *.pro

  4. Translate

  linguist (A UI tool to translate .ts items), release it get a .qm file

  5. Load special .qm file in application code

       

QTranslator qtTranslator;
qtTranslator.load("ts_file_path.qm");
app.installTranslator(&qtTranslator);