Still can resize the Window after setSizePolicy to fixed

[hikaris]

Hi, here's the constructor of my MainWindow class. I set the window size policy to fixed, and updateGeometry, but still can resize the window. Why it can't work? Maybe I used it in a wrong way?

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    this->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
    this->updateGeometry();
}

[Bonnie]

Size policy is a layout attribute. So it only takes effect in layouts.
It will never have any effect on a window.
If you don't want your window to be resized, you should use setFixedSize.

[hikaris]

@Bonnie Thank you ~