CODEWITHSUNDEEP
c++qtqwidget
arqam
arqam

Reputation: 3779

Creating QWidget in a class

I am trying to create a window in my class.

I went through the documentation : http://doc.qt.io/qt-5/qtwidgets-tutorials-widgets-toplevel-example.html

QApplication a(argc, argv);
QWidget window;
window.show();
return a.exec();

This does show the window when the code is in main.cpp .

But I want to create the window in other class. When I use the line : 

QWidget window;
window.show();

It doesn't give me the window, and the program also doesn't quit.

So how can we create a widget in QT in our own class?

Upvotes: 1

Views: 1864

Answers (2)

user16663341
user16663341

Reputation:

you should create a Qframe class .h like this

class Window : public QWidget
{
    Q_OBJECT
public:
    Window(QWidget *parent = nullptr);
private:
    QLabel *createLabel(const QString &text);
};
#endif

and the .cpp

#endif
    QGridLayout *layout = new QGridLayout;
    layout->addWidget(createLabel(tr("LEVEL")), 2, 0);
    setLayout(layout);
    setWindowTitle(tr("Tetrix"));
    resize(50, 370);
}

QLabel *Window::createLabel(const QString &text)
{
    QLabel *label = new QLabel(text);
    label->setAlignment(Qt::AlignHCenter | Qt::AlignCenter);
    return label;
}

Upvotes: 1

Farhad
Farhad

Reputation: 4181

This a sample QWidget that initialized and customized:

#include <QWidget>

void FileManager::initializeMyWidget()
{
    QWidget *myWidget= new QWidget();
    myWidget->setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
    myWidget->setWindowFlags(windowFlags() | Qt::CustomizeWindowHint | Qt::WindowStaysOnTopHint);
    QIcon iconMyWidget(":/Images/Images/image.png");
    myWidget->setWindowIcon(iconMyWidget);
    QHBoxLayout *mainLayout = new QHBoxLayout;
    myWidget->setLayout(mainLayout);
}

Now call function and show the widget:

initializeMyWidget();
myWidget->show();

Upvotes: 1

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