LRESULT CALLBACK WndProcPref(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	int wmId, wmEvent;
	PAINTSTRUCT ps;

	switch (message)
	{
	
	case WM_LBUTTONDOWN:
		{
			// I have a tracepoint here which is never hit
		}
		break;

	case WM_PAINT:
		{
			HDC hdc = BeginPaint(hWnd, &ps);
				char s_east[32];
				char s_north[32];
				sprintf_s(s_east, "%i cars eastbound", num_h);
				sprintf_s(s_north, "%i cars northbound", num_v);
				TextOut(hdc, 5, 10, s_east, strlen(s_east)); 
				TextOut(hdc, 5, 60, s_north, strlen(s_north));
			EndPaint(hWnd, &ps);
		}
		break;
	default:
		return DefWindowProc(hWnd, message, wParam, lParam);
	}
	return 0;
}

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	int wmId, wmEvent;
	PAINTSTRUCT ps;

	switch (message)
	{
	case WM_COMMAND:
		wmId    = LOWORD(wParam);
		wmEvent = HIWORD(wParam);

		// Parse the menu selections:
		switch (wmId)
		{
		case IDM_ABOUT:
			DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);
			break;
		case IDM_EXIT:
			DestroyWindow(hWnd);
			break;
		default:
			return DefWindowProc(hWnd, message, wParam, lParam);
		}
		break;

	case WM_PAINT:
		{
			BeginPaint(hWnd, &ps);
				BitBlt ( hdcMem, 0, 0, 700, 700, bgdc, 0, 0, SRCCOPY );
				{
					Point p1 = {210,450};
					t1.paint(hdcMem, p1,40,120,EASTBOUND);
				}
				{
					Point p1 = {450,490};
					t2.paint(hdcMem, p1,40,120,NORTHBOUND);
				}
				{
					list<Car*>::iterator it;
					for(it = cars_horizontal.begin(); it != cars_horizontal.end(); it++)
					{
						Car* c = *it;
						int x = c->getPosition().x;
						if(x > 0 && x < 700)
							c->paint(hdcMem, car_east_model, car_east_bitmask, EASTBOUND);
					}
					
					for(it = cars_vertical.begin(); it != cars_vertical.end(); it++)
					{
						Car* c = *it;
						int y = c->getPosition().y;
						if(y > 0 && y < 700)
							c->paint(hdcMem, car_north_model, car_north_bitmask, NORTHBOUND);
					}
				}

				char s_east[32];
				char s_north[32];
				sprintf_s(s_east, "%i cars eastbound", num_h);
				sprintf_s(s_north, "%i cars northbound", num_v);
				TextOut(hdcMem, 470, 130, s_east, strlen(s_east)); 
				TextOut(hdcMem, 470, 150, s_north, strlen(s_north));
				TextOut(hdcMem, 470, 30, txt_speedX, strlen(txt_speedX)); 
				TextOut(hdcMem, 470, 80, txt_speedY, strlen(txt_speedY));			
				BitBlt(hdc, 0, 0, 700, 700, hdcMem, 0, 0, SRCCOPY);

			EndPaint(hWnd, &ps);
		}
		break;

	case WM_CHAR:

		switch(wParam)
		{
		case 'h':
			{
				// Create a new car in the horizontal list
				Point p = {-100,350};
				cars_horizontal.push_back(new Car(p));
			}
			break;
		case 'v':
			{
				// Create a new car in the vertical list
				Point p = {350,800};
				cars_vertical.push_back(new Car(p));
			}
			break;
		}

		break;

	case WM_LBUTTONDOWN:
		changeLights(hWnd);
		break;
	case WM_DESTROY:
		PostQuitMessage(0);
		break;
	default:
		return DefWindowProc(hWnd, message, wParam, lParam);
	}
	return 0;
}