A window with quickly changing forms

[Mikee]

Hi.
Me need window with quickly changing forms.
In mainwindow.h :

private:
    Ui::MainWindow *ui;
    Ui::MainWindow *ui2;

In mainwindow.cpp :

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow),
    ui2(new Ui::MainWindow)
{
    ui->setupUi(this);
    NBar = 0;
    TimeFrame=1;
    ParametrForStrategyCod=10;
    //ui2=new Ui::MainWindow; 
    //ui3=new Ui::MainWindow;
}

The button is tied to the calling form:

ui2->setupUi(this);

But after that the buttons don't work.
How to create and call a new window, or form in this class?

[jsulm]

@Mikee Why do you use two MainWindows? Just create two widgets and switch between them. See http://doc.qt.io/qt-5.9/qmainwindow.html#setCentralWidget

[mrjj]

Hi
The http://doc.qt.io/qt-5/qstackedwidget.html
is also good for such designs as it make it very easy to switch back and forth between
"pages" containing any number of widgets.

[Mikee]

thank you