Ok I buy this bbok called "OpenGL Game Programming", never programmed in windows maybe jumped the gun a little but I dont think thats why this is happening. They show you how to make a Hello World program in windows. I did it and it worked. Next they show a little more advanced version of Hello World in windows, but this one gives me a strange error here is the code:

  
#define WIN32_MEAN_AND_LEAN

#include <windows.h>

LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	PAINTSTRUCT paintStruct;
	HDC hDC;
	char string[] = "Hello, World!";
	switch(message)
	{
	case WM_CREATE:
		 return 0;
		 break;

	case WM_CLOSE:
		 PostQuitMessage(0);
		 return 0;
		 break;

	case WM_PAINT:
		 hDC = BeginPaint(hwnd, &paintStruct);
		 SetTextColor(hDC, COLORREF(0x00FF0000));
		 TextOut(hDC, 150, 150, string, sizof(string)-1);
		 EndPaint(hwnd, &paintStruct);
		 return 0;
		 break;

	default:
		 break;
	}
	return (DefWindowProc(hwnd, message, wParam, lParam));
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd)
{
	WNDCLASSEX windowClass;
	HWND hwnd;
	MSG msg;
	bool done;
	windowClass.cbSize = sizeof(WNDCLASSEX);
	windowClass.style = CS_HREDRAW | CS_VREDRAW;
	windowClass.lpfnWndProc = WndProc;
	windowClass.cbClsExtra = 0;
	windowClass.cbWndExtra = 0;
	windowClass.hInstance = hInstance;
	windowClass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
	windowClass.hCursor = LoadCursor(NULL, IDC_ARROW);
	windowClass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
	windowClass.lpszMenuName = NULL;
	windowClass.lpszClassName = "MyClass";
	windowClass.hIconSM = LoadIcon(NULL, IDI_WINLOGO);

	if (!RegisterClassEx(&windowClass))
			return 0;

	hwnd = CreateWindowEx(Null,
						  "MyClass",
						  "A real Windows Application!",
						  WS_OVERLAPPEDWINDOW |
						  WS_VISIBLE |
						  WS_SYSMENU,
						  100, 100,
						  400, 400,
						  NULL,
						  NULL,
						  hInstance,
						  NULL);

	if (!hwnd)
		return 0;

	done = false;

	while (!done)
	{
		PeekMessage(&msg, hwnd, NULL, NULL, PM_REMOVE);

		if (msg.message == WM_QUIT)
		{
			done = true;
		}
		else
		{
			TranslateMessage(&msg);
			DispatchMessage(&msg);
		}
	}

	return msg.wParam;
}
  

Now when I compile I get this error: --------------------Configuration: firsttry - Win32 Debug-------------------- Compiling... firsttry1.cpp c:\dev-c++\examples\firsttry\firsttry1.cpp(92) : fatal error C1010: unexpected end of file while looking for precompiled header directive Error executing cl.exe. firsttry.exe - 1 error(s), 0 warning(s) Now when I go to help to look up the error it tells me this: Fatal Error C1010 unexpected end of file while looking for precompiled header directive A precompiled header was specified, but it did not contain a precompiled header directive. This error can be caused by specifying an incorrect file as a header file, or by specifying an include file with the /Yu (Use Precompiled Header) command line option that is not listed in the source file as an include file. Since reading this I think its because I am running Dev-c++ Windows.h but really not sure thats why I writing to you . BTW I am usuing VC++. Thx, Jeff Desrosiers

Jeff D, try disabling precompiled headers.
You can find this option in Project->Settings, then click the C++ tab and choose "precompiled headers" from the drop down list box. There you can deactivate them by choosing the top most option ("do not use precompiled header"... or sth. like this).
The program compiles fine on my machine when I create a win32 app.

(BTW you have three typos in your code but the compiler should tell you (sizof~sizeof, hIconSM~hIconSm, Null~NULL))

baumep

Thx guys it worked.