How to correctly make the ui pointer global so that even my static functions can access it ?

[learnist]

i want to make ui pointer global , so that even my static functions can access it, This is my .h file , do i need to add something in my .cpp file as well ?

#pragma once
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include "windows.h"
#include "windowsx.h"

QT_BEGIN_NAMESPACE
namespace Ui { class MainWindow; }
QT_END_NAMESPACE

class MainWindow : public QMainWindow
{
    Q_OBJECT                      //Used to handle events
    Q_DISABLE_COPY(MainWindow) //added

public:
    MainWindow(QWidget* parent = 0);
    ~MainWindow();                    //Destructor used to free resources

    // Static method that will act as a callback-function
   static LRESULT CALLBACK mouseProc(int Code, WPARAM wParam, LPARAM lParam);

 //   BOOL InitializeUIAutomation(IUIAutomation** automation);

  static Ui::MainWindow* ui; // How do i make this global ??

private:

    // hook handler
    HHOOK mouseHook;
};
#endif // MAINWINDOW_H

[Pablo J. Rogina]

@learnist please don't double post. Issue is being discuss there.