Qt，如何在没有 argc 和 argv 的情况下创建 QApplication

Question

Hey so I need to export a qt application as a.dll and, so I dont want any arguments like argc and argv , but QApplication needs them, so i tried this

int main()
{
    int c=1;
    char** v = (char**)("ApplicationName");
    QApplication app(c,v);
    MainWindow window;
    window.show();
    return app.exec();
}

but I get segfault from QtCore ... Can someone help me bypass the segfault and create the QApplication without needing argc and argv ? This didnt solve the problem cause it needs argv defined... QApplication app(argc, argv)

Answer 1

Try this:

int main()
{
    char* args[] = { (char*)"AppName" };
    QApplication app(1,args);
    MainWindow window;
    window.show();
    return app.exec();
}