Compilierfehler in C++ -Beispiel in Visual Studio 2008 (help needed)

TheRainer

Habe das Buch "3d-Spiele mit C++ und DirectX in 21 Tagen" von Alexander Rudolph vor mir. Das Listing zur Erzeugung eines Fensters habe ich in Visual Studio 2008 eingegeben. Beim kompilieren tritt folgender Fehler auf:
Error LNK2019: unresolved external symbol "void __cdecl Game_Init(void)" (?Game_Init@@YAXXZ) referenced in function _WinMain@16. Dazu der Folgefehler:
Error fatal error LNK1120: 1 unresolved externals.
Der Code ist folgender:

//	
// DEFINES
//	
#define WINDOW_CLASS_NAME L"Game Shell Window"
#define WIN32_LEAN_AND_MEAN
// 	
// INCLUDES
//	
#include <windows.h>
//	
// MACROS
#define KEYDOWN(vk_code) ((GetAsyncKeyState(vk_code)&0x8000)?1:0)
#define KEYUP(vk_code)	((GetAsynckeyState(vk_code)&0x8000)?0:1)
//	
// GLOBALS
//	
HWND	main_window_handle = NULL;
HINSTANCE hinstance_app	= NULL;
//	
// Wichtige GAME-Funktionsprototypen
//	
void Game_Shutdown(void);
void Game_Init(void);
void Game_Main(void);
// Funktionsdefinitionen
//	
LRESULT CALLBACK WindowProc(HWND hwnd,
							UINT msg,
							WPARAM wparam,
							LPARAM lparam)
{
	PAINTSTRUCT ps;
	HDC	hdc;

	// Nachrichtenverarbeitung
	switch(msg)
{
	case WM_CREATE:
	{
		return(0);
	}
	break;

	case WM_PAINT:
	{
	hdc = BeginPaint(hwnd,&ps);
	EndPaint(hwnd,&ps);
	return(0);
	}
	break;

case WM_DESTROY:
	{
	PostQuitMessage(0);
	return(0);
	}
break;

default:
	break;
}
return (DefWindowProc(hwnd, msg, wparam, lparam));
}
/////////////////////////////////////////////////////////////
int WINAPI WinMain(HINSTANCE hinstance,
					HINSTANCE hprevinstance,
					LPSTR lpcmdline,
					int ncmdshow)
{
	WNDCLASSEX	winclass;
	HWND		hwnd;
	MSG			msg;
// Fenstereigenschaften festlegen:
winclass.cbSize			= sizeof(WNDCLASSEX);
winclass.style			= CS_HREDRAW | CS_VREDRAW;
winclass.lpfnWndProc	= WindowProc;
winclass.cbClsExtra		= 0;
winclass.cbWndExtra		= 0;
winclass.hInstance		= hinstance;
winclass.hIcon			= LoadIcon(NULL, IDI_APPLICATION);
winclass.hCursor		= LoadCursor(NULL, IDC_ARROW);
winclass.hbrBackground	= (HBRUSH)GetStockObject(BLACK_BRUSH);
winclass.lpszMenuName	= NULL;
winclass.lpszClassName	= WINDOW_CLASS_NAME;
winclass.hIconSm		= LoadIcon(NULL, IDI_APPLICATION);

hinstance_app = hinstance;
if( !RegisterClassEx(&winclass))
	return(0);

if(!(hwnd = CreateWindowEx(NULL,
							WINDOW_CLASS_NAME,
							L"My Game Shell",
							WS_OVERLAPPEDWINDOW | WS_VISIBLE,
							0,0,
							800,600,
							NULL,
							NULL,
							hinstance,
							NULL)))
return(0);

main_window_handle = hwnd;
Game_Init();
while(TRUE) // Nachrichtenweiterleitung
{
	if(PeekMessage(&msg,NULL,0,0,PM_REMOVE))
	{
		if(msg.message == WM_QUIT)
			break;
		TranslateMessage(&msg);
		DispatchMessage(&msg);
	}

	Game_Main();
}

Game_Shutdown();

return(msg.wParam);
}
/////////////////////////////////////////////////////////////
void Game_lnit(void)
{}

/////////////////////////////////////////////////////////////
void Game_Main(void)
{
	// Mit ESC kann die Anwendung verlassen werden
	if(KEYDOWN(VK_ESCAPE))
		SendMessage(main_window_handle,WM_CLOSE,0,0);
}
/////////////////////////////////////////////////////////////
void Game_Shutdown(void)
{}

Kann mir jemand bitte helfen?

devkid

Zeile 123: Die Funktion muss Game_Init () heißen, nicht Game_lnit ()...

TheRainer

Dummer Schreibfehler ... Danke für den Hinweis