I was working with some c++ code from a site. When i try to link in dev c++ I get this.
[Linker error] undefined reference to `GameEngine::m_pGameEngine'
The code compiles perfectly but does not link.
class GameEngine
{
protected:
// Member Variables
static GameEngine* m_pGameEngine;
HINSTANCE m_hInstance;
HWND m_hWindow;
TCHAR m_szWindowClass[32];
TCHAR m_szTitle[32];
WORD m_wIcon, m_wSmallIcon;
int m_iWidth, m_iHeight;
int m_iFrameDelay;
BOOL m_bSleep;
public:
// Constructor(s)/Destructor
GameEngine(HINSTANCE hInstance, LPTSTR szWindowClass,
LPTSTR szTitle, WORD wIcon, WORD wSmallIcon, int iWidth = 640,
int iHeight = 480);
virtual ~GameEngine();
// General Methods
static GameEngine* GetEngine() { return m_pGameEngine; };
BOOL Initialize(int iCmdShow);
LRESULT HandleEvent(HWND hWindow, UINT msg, WPARAM wParam,
LPARAM lParam);
// Accessor Methods
HINSTANCE GetInstance() { return m_hInstance; };
HWND GetWindow() { return m_hWindow; };
void SetWindow(HWND hWindow) { m_hWindow = hWindow; };
LPTSTR GetTitle() { return m_szTitle; };
WORD GetIcon() { return m_wIcon; };
WORD GetSmallIcon() { return m_wSmallIcon; };
int GetWidth() { return m_iWidth; };
int GetHeight() { return m_iHeight; };
int GetFrameDelay() { return m_iFrameDelay; };
void SetFrameRate(int iFrameRate) { m_iFrameDelay = 1000 /
iFrameRate; };
BOOL GetSleep() { return m_bSleep; };
void SetSleep(BOOL bSleep) { m_bSleep = bSleep; };
};What am I doing wrong or how can I change it.
