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

QWidget::setLayout: Attempting to set QLayout "" on cctv_form "", which already has a layout
cctv_form.cpp
Qt Code: 
  1. #include "cctv_form.h"
  2. #include <QPushButton>
  3. #include <QHBoxLayout>
  4.  
  5. cctv_form::cctv_form(QWidget *parent)
  6.     : QMainWindow(parent)
  7. {
  8.     QPushButton *left  = new QPushButton("Right",this);
  9.     QPushButton *right = new QPushButton("Right",this);
  10.  
  11.     QHBoxLayout *layout = new QHBoxLayout;
  12.     layout->addWidget(left);
  13.     layout->addWidget(right);
  14.  
  15.     QWidget *Window = new QWidget();
  16.     Window->setLayout(layout);
  17.     this->setCentralWidget(window);
  18.  
  19.  
  20. }
  21.  
  22. cctv_form::~cctv_form()
  23. {
  24.  
  25. }
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cctv_form.h
Qt Code: 
  1. #ifndef CCTV_FORM_H
  2. #define CCTV_FORM_H
  3.  
  4. #include <QMainWindow>
  5.  
  6. class cctv_form : public QMainWindow
  7. {
  8.     Q_OBJECT
  9.  
  10. public:
  11.     cctv_form(QWidget *parent = 0);
  12.     ~cctv_form();
  13. };
  14.  
  15. #endif // CCTV_FORM_H
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main.cpp
Qt Code: 
  1. #include "cctv_form.h"
  2. #include <QApplication>
  3.  
  4. int main(int argc, char *argv[])
  5. {
  6.     QApplication a(argc, argv);
  7.     cctv_form w;
  8.     w.show();
  9.  
  10.     return a.exec();
  11. }
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Can anyone point me in the right direction ?