class Window
{
	HWND		m_WndHandle;
	WNDCLASS	m_WndClass;
public:
	Window()
	{
		char szFileName[MAX_PATH];
		char szDrive[8], szDirectory[MAX_PATH];
		WIN32_FIND_DATA FindData;

		ZeroMemory(&m_WndClass, sizeof(WNDCLASS));
		ZeroMemory(&FindData, sizeof(WIN32_FIND_DATA));
		GetModuleFileName(0, szFileName, MAX_PATH);
		_splitpath(szFileName, szDrive, szDirectory, 0, 0);
		_makepath(szFileName, szDrive, szDirectory, 0, 0);

		if(FindFirstFile(std::string(std::string(szFileName) + std::string("*.ico")).c_str(), &FindData) == INVALID_HANDLE_VALUE)
			m_WndClass.hIcon = LoadIcon(0, IDI_APPLICATION);
		else
			m_WndClass.hIcon = (HICON)LoadImage(0, FindData.cFileName, IMAGE_ICON, 0, 0, LR_LOADFROMFILE | LR_SHARED | LR_LOADTRANSPARENT);

		if(FindFirstFile(std::string(std::string(szFileName) + std::string("*.cur")).c_str(), &FindData) == INVALID_HANDLE_VALUE)
			m_WndClass.hCursor = LoadCursor(0, IDC_ARROW);
		else
			m_WndClass.hCursor = (HCURSOR)LoadImage(0, FindData.cFileName, IMAGE_CURSOR, 0, 0, LR_LOADFROMFILE | LR_SHARED | LR_LOADTRANSPARENT);

		FindFirstFile(std::string(std::string(szFileName) + std::string("*.exe")).c_str(), &FindData);
		m_WndClass.lpszClassName = FindData.cFileName;

		m_WndClass.hbrBackground	= GetSysColorBrush(COLOR_BTNFACE);
		m_WndClass.hInstance		= GetModuleHandle(0);
		m_WndClass.lpfnWndProc		= DefWindowProc;
	}

	void Create()
	{
		assert(RegisterClass(&m_WndClass) != 0);
		assert((m_WndHandle = CreateWindow(m_WndClass.lpszClassName, m_WndClass.lpszClassName, WS_POPUP | WS_VISIBLE, 0, 0, 800, 600, 0, 0, m_WndClass.hInstance, 0)) != 0);
	}

	void Start(void (*Idle)())
	{
		if(!m_WndHandle)
			Create();

		MSG Msg;
		ZeroMemory(&Msg, sizeof(MSG));
		while(1)
		{
			if(PeekMessage(&Msg, 0, 0, 0, PM_REMOVE))
			{
				if(Msg.message == WM_QUIT)
					break;

				TranslateMessage(&Msg);
				DispatchMessage(&Msg);
			}
			else
			{
				Idle();
			}
		}
	}

	void OverrideIcon(HICON hIcon)
	{
		if(!m_WndHandle)
			m_WndClass.hIcon = hIcon;
	}

	void OverrideCursor(HCURSOR hCursor)
	{
		if(!m_WndHandle)
			m_WndClass.hCursor = hCursor;
	}

	void OverrideWndProc(WNDPROC WndProc)
	{
		if(!m_WndHandle)
			m_WndClass.lpfnWndProc = WndProc;
		else
			SetWindowLong(m_WndHandle, GWL_WNDPROC, (long)WndProc);
	}

	void OverrideClassName(const char* pClassName)
	{
		if(!m_WndHandle)
			m_WndClass.lpszClassName = pClassName;
	}

	HWND		GetHandle() const	{ return m_WndHandle;	}
	WNDCLASS	GetWndClass() const	{ return m_WndClass;	}
};

g_Wnd.OverrideWndProc(InputProc);
g_Wnd.Start(IdleProc);

Code Bytes error LNK2019: unresolved external symbol "public: void __thiscall std::_String_base::_Xran(void)const " (?_Xran@_String_base@std@@QBEXXZ) referenced in function "public: class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > & __thiscall std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >::erase(unsigned int,unsigned int)" (?erase@?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QAEAAV12@II@Z)