Image manipulation in Qt console app segfaults?
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Hi all,
Can someone tell me why the following creates a segfault?
It does so at the drawText line.@
int main(int argc, char *argv[])
{
QApplication app(argc, argv, QApplication::Tty);QImage img(800, 800, QImage::Format_RGB16); QPainter painter(&img); QFont font("utsaah", 50, QFont::Bold, true); painter.setPen(QPen(Qt::white)); painter.setFont(font); painter.drawText(0,0, 200,200, Qt::AlignLeft, "blah"); return 0;
}
@Is there any way i can make this work without it needing to become a Qt GUI app?
Thanks in advance.
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Hi,
what do you mean by "... become a Qt GUI app" or a "... Qt console app"? When you create Qt Console project with the QtCreator your pro-file has a
@QT -= gui@
in which case the code given does not compile, because QApplication, QPainter and QImage are not available.
So, do you want to avoid creating a QWidget of any kind? That should be no problem. In fact, when commenting the above line
@#QT -= gui@
I can compile your code and execute it without any problems.
Best Soraltan
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I should mention this is qt-embedded.
It segfaults if i use:
@
QApplication app(argc, argv, QApplication::Tty);
@But if i use this it works fine (but i dont want the extra weight of the QWS/GUI).
@
QApplication app(argc, argv);
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Then I'm out, sorry. Not worked with Qt-embedded yet.