How to show Unicode characters on MS Windows?

I need to show Unicode characters in a QLabel. This code works fine on Debian, but on Windows I just get a square.
FWIW, the browser does show this character when used in a webpage, and I can copy/paste it in Wordpad, so I guess it's not a font issue.
What am I missing?

Code:

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#include <QtGui/QApplication>
#include <QLabel>
 
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
 
    QLabel label(QChar(10269)); // ⠝ (U+281D) is points 1,3,4,5 in Braille
    label.show();
 
    return app.exec();
}

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Hi, I think this is font issue, try to install Dejavu Sans and set font using

Code:

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label.setFont(QFont("Dejavu Sans"));

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Quote:

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Originally Posted by Surendil

Hi, I think this is font issue, try to install Dejavu Sans and set font using

Code:

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label.setFont(QFont("Dejavu Sans"));

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Oh, that works!! Thanks! :-)

Should I just add that line as is, or should it only apply to the Windows build?
In the latter case, what would be the correct method to do it?

Hmm I think it would be better to apply this only to Windows build (you said in Linux it works well). You may wrap this code with:

Code:

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#ifdef Q_OS_WIN32
  label.setFont(QFont("Dejavu Sans"));
#endif

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Look at http://doc.qt.io/qt-4.8/QtGlobal for platform preprocessor definitions and don't forget to include Dejavu (or any other font you want use for Braille) into your distribution package for Windows.

Thanks for your pointer :)

Quote:

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Originally Posted by Surendil

don't forget to include Dejavu (or any other font you want use for Braille) into your distribution package for Windows.

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That must be done in the installer, right?
I just began developing my app, and didn't explore yet the available options (Nullsoft Scriptable Install System, Inno Setup, WiX...).

I believe that Windows 7 includes Braille characters in its Segoe UI Symbol font, but that earlier versions do not. So you have some Windows versions that require a third party font, and others that don't :( There are some free fonts containing just the Braille patterns: http://www.alanwood.net/unicode/font...raillepatterns

Quote:

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Originally Posted by ChrisW67

I believe that Windows 7 includes Braille characters in its Segoe UI Symbol font, but that earlier versions do not. So you have some Windows versions that require a third party font, and others that don't :(

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Thanks for your comment.
DejaVu Sans is actually doing the trick (tested on both Windows 7 and Windows XP).