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This article mainly introduces "how to display Chinese after Ubuntu object-oriented framework Qt is transplanted to the development board". In daily operation, I believe that many people have doubts about how to display Chinese after Ubuntu object-oriented framework Qt is transplanted to the development board. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the question of "how to display Chinese after the Ubuntu object-oriented framework Qt is transplanted to the development board"! Next, please follow the editor to study!

The display of Chinese is mainly based on two points, one is the coding, but the font.

There are all kinds of theories about coding information on the Internet, utf8 gbk gb2312, I use utf8.

There must also be a corresponding Chinese font on the development board to display Chinese. Here, under the usr/share/fonts/truetype/wqy directory in the installation directory of Ubuntu 12.04, copy this to the font library in the Qt library of the development board. Please add the font path of Qt to the environment variable QT_QWS_FONTDIR=/opt/qt-4.8.4/lib/fonts.

Finally, add code to the main function:

# include "widget.h"

# include "QApplication"

# include "QTextCodec"

Int main (int argc, char * argv [])

{

QApplication a (argc, argv)

QTextCodec * codec = QTextCodec::codecForName ("utf8")

QTextCodec::setCodecForLocale (codec)

QTextCodec::setCodecForCStrings (codec)

QTextCodec::setCodecForTr (codec)

QFont font

Font.setFamily (("wqy-microhei"))

Widget w

W.setWindowFlags (Qt::FramelessWindowHint)

W.show ()

Return a.exec ()

}

Use tr macros such as ui- "statelabel-" setText (tr ("camera is already running!") when using it. ))

In this way, Chinese fonts can be used when running on the development board, and there will be no problems such as font size and typesetting.

At this point, the study on "how to display Chinese after the Ubuntu object-oriented framework Qt is transplanted to the development board" is over. I hope to be able to solve everyone's doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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