The cross-compiled program cannot display the added fonts

Kutyus

Hello!

I ran into the following problem.
I cross-compiled Qt 5.15.2 to Rasperry Pi 4 and added some truetype fonts in the main function:

    QApplication app(argc, argv);
    qint32 fontId;
    fontId = QFontDatabase::addApplicationFont(":/res/fonts/SourceCodePro-Bold.ttf");
    if (fontId > -1) qDebug() << QFontDatabase::applicationFontFamilies(fontId) << "added";
    fontId = QFontDatabase::addApplicationFont(":/res/fonts/SourceCodePro-BoldIt.ttf");
    if (fontId > -1) qDebug() << QFontDatabase::applicationFontFamilies(fontId) << "added";
    fontId = QFontDatabase::addApplicationFont(":/res/fonts/SourceCodePro-It.ttf");
    if (fontId > -1) qDebug() << QFontDatabase::applicationFontFamilies(fontId) << "added";
    fontId = QFontDatabase::addApplicationFont(":/res/fonts/SourceCodePro-Regular.ttf");
    if (fontId > -1) qDebug() << QFontDatabase::applicationFontFamilies(fontId) << "added";
    app.setFont(QFont(QFontDatabase::applicationFontFamilies(fontId).at(0), 10));

The program is compiles and runs, it says on the output that the fonts are added, so the fontId is not -1, but everything is written in the program with the default DejaVu fonts.

When cross-compiling Qt, Freetype, Use system freeteype and Fontconfig were set to yes.

Thank you in advance for your help!

m2dtkast

I might be a bit shooting in the dark here;
but is fontconfig the only component required? Or is there more?

Kutyus

@m2dtkast Thanks for the reply.
Of course there are more, I also use mysql, websocket and ble classes, now first I have to find the error in the display of truetype fonts, then ble follows. The rest works.

Kutyus

I found what I did wrong, during all the copying back and forth, an old header file remained in which I had not yet used the loaded fonts.