I still got a Painter and Recource class but I use heritance here.
[font="Courier New"]class GameEngine: public Painter, public ResourceLoader[/font][/quote]This is a common pattern, where you inherit a class simply to gain it's functionality. Using inheritance like this is often simpler to implement than using composition.
However, it does bend a few OO rules -- usually inheritance is for [font="Lucida Console"]is a[/font], and composition is for [font="Lucida Console"]has a[/font]. It's tempting (and sometimes valid) to use inheritance for this, but generally using member variables is more correct in regards to large-scale engineering concerns.

[font="Courier New"]GameEngine engine = GameEngine::GetInstance();[/font]
[font="Courier New"]engine.StartUp( 640, 480, _T("Game Engine"), 60 );[/font]
[font="Courier New"]engine.Shutdown();[/font][/quote]You can simplify this by using constructors and destructors, and instead of using globals/singletons, you can give these variables the same scope as main has:class GameEngine
{
public:
GameEngine( int w, int h, char* t, int r )
: painter(w,h,t,r)
, resourceLoader() { StartUp(); }
~GameEngine() { Shutdown(); }//N.B. calls painter.~Painter() and loader.~Loader()
Painter painter;
Loader loader;
};
int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow )
{
GameEngine engine( 640, 480, _T("Game Engine"), 60 );
Image* pImage = new Image( engine.loader, "image.bmp" );
while( engine.ProcessMessages() )
engine.painter.DrawImage( pImage, xPos, yPos );
delete pImage;
return 0;
//N.B. engine.~GameEngine() is called here
}You can also pull the painter/loader out of the game engine object like this:class Painter
{
public: Painter( GameEngine& e ) : engine(e) {}
private: GameEngine& engine;
};
class Loader
{
public: Loader( GameEngine& e ) : engine(e) {}
private: GameEngine& engine;
};

int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow )
{
GameEngine engine( 640, 480, _T("Game Engine"), 60 );
Painter painter( engine );
Loader loader( engine );
Image* pImage = new Image( loader, "image.bmp" );
while( engine.ProcessMessages() )
painter.DrawImage( pImage, xPos, yPos );
delete pImage;
return 0;
//N.B. resourceLoader.~ResourceLoader() is called here
//N.B. painter.~Painter() is called here
//N.B. engine.~GameEngine() is called here
}

I want to have the feeling with this game that -> I <- made it all on my own.
[/quote]

Just because you used a nailgun to build that house doesn't mean it was any less of an accomplishment than using a hammer; it just means you built a better house in less time.