QGLWidget questions.

[Rebekka]

I wrote a simple opengl program using QGLWidget. It looks like this


As you can see glwidget takes all the space of the window. How can I resize it?
glViewport() does not help.


I want to make it smaller and add some buttons on the right.
I use this code to add glwidget on the window:

Window::Window() // constructor
{
    glWidget = new MyGLWidget;
    QHBoxLayout *mainLayout = new QHBoxLayout;
    mainLayout->addWidget(glWidget);
    setLayout(mainLayout);
    setWindowTitle(tr("Hello GL"));
}

Window::Window() // constructor
{
    glWidget = new MyGLWidget;
    QHBoxLayout *mainLayout = new QHBoxLayout;
    mainLayout->addWidget(glWidget);
    setLayout(mainLayout);
    setWindowTitle(tr("Hello GL"));
}

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P.S. Sorry for my English.

[tbscope]

Use layouts.
You already use one.

[Rebekka]

Use layouts.
You already use one.

Thanks for the right direction to search