How does Qt handle label style with an invalid font family?

I am currently ext开发者_C百科ending a Qt application written for the United States for use in Korea and China. I have used Qt Linguist with great success but some strings have lost all their styling. Specifically, they have lost their weight and size.

If Qt tries to print a string with characters not supported in the font family, does it get the default style?

It seems that the best way to handle fonts in internationalized applications is to choose a font based on the chosen language as there are very few fonts with adequate character set coverage.