Problems Creating layout on MainWindow

Ok currently just testing a basic implementation as having problems with this section of the code in my main program.

Below is a simple class that just contains a couple of buttons created in code. However when I try to add them to either the central widget or to a layout the code fails with

Quote:

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QWidget::setLayout: Attempting to set QLayout "" on cctv_form "", which already has a layout

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cctv_form.cpp

Code:

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#include "cctv_form.h"
#include <QPushButton>
#include <QHBoxLayout>
 
cctv_form::cctv_form(QWidget *parent)
    : QMainWindow(parent)
{
    QPushButton *left  = new QPushButton("Right",this);
    QPushButton *right = new QPushButton("Right",this);
 
    QHBoxLayout *layout = new QHBoxLayout;
    layout->addWidget(left);
    layout->addWidget(right);
 
    QWidget *Window = new QWidget();
    Window->setLayout(layout);
    this->setCentralWidget(window);
 
 
}
 
cctv_form::~cctv_form()
{
 
}

---

cctv_form.h

Code:

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#ifndef CCTV_FORM_H
#define CCTV_FORM_H
 
#include <QMainWindow>
 
class cctv_form : public QMainWindow
{
    Q_OBJECT
 
public:
    cctv_form(QWidget *parent = 0);
    ~cctv_form();
};
 
#endif // CCTV_FORM_H

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main.cpp

Code:

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#include "cctv_form.h"
#include <QApplication>
 
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    cctv_form w;
    w.show();
 
    return a.exec();
}

---

Can anyone point me in the right direction ?

Strange.

Try creating the buttons with their actual parent instead.

Cheers,
_

Are you using Qt Designer to create your MainWindow .ui file? Are you specifying a layout in that for the central widget?

Is this your actual code? You have a QWidget instance named "Window" (with an uppercase "W") and you're calling setCentralWidget( window ) (with a lowercase "w"). Unless you have lowercase "window" declared somewhere, the code you posted won't compile.