这是一本学习 window编程的很好的参考教材

				#include 
				
				HWND     g_hWnd;
				HMODULE  hHookLib = NULL;
				
				
				LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
				
				int APIENTRY WinMain(
					HINSTANCE hInstance, 
					HINSTANCE hPrevInstance,
				    LPSTR     lpszCmdLine, 
					int       nCmdShow
					)
				{
				    HWND     hwnd;
				    MSG      msg ;
				    WNDCLASS wndclass ;
				
					if(!hPrevInstance) 
					{
						wndclass.style         = CS_HREDRAW | CS_VREDRAW ;
						wndclass.lpfnWndProc   = WndProc ;
						wndclass.cbClsExtra    = 0 ;
						wndclass.cbWndExtra    = 0 ;
						wndclass.hInstance     = hInstance ;
						wndclass.hIcon         = LoadIcon(NULL, IDI_APPLICATION) ;
						wndclass.hCursor       = LoadCursor(NULL, IDC_ARROW) ;
						wndclass.hbrBackground =(HBRUSH) GetStockObject(WHITE_BRUSH) ;
						wndclass.lpszMenuName  = NULL;
						wndclass.lpszClassName = "DemoClass" ;
						RegisterClass(&wndclass) ;
					}
				
					hwnd = ::CreateWindow(
						"DemoClass",			// LPCTSTR lpClassName
						"Test Application",		// LPCTSTR lpWindowName
				   		WS_OVERLAPPEDWINDOW,	// DWORD dwStyle
						CW_USEDEFAULT,			// int x
						0,						// int y 
						CW_USEDEFAULT,			// int nWidth
						0,						// int nHeight
						NULL,					// HWND hWndParent
						NULL,					// HMENU hMenu
						hInstance,				// HANDLE hInstance
						NULL                    // PVOID lpParam 
						);				
					g_hWnd = hwnd;
					
					::ShowWindow(hwnd, nCmdShow) ;
					::UpdateWindow(hwnd) ;
				
					while(::GetMessage(&msg, NULL, 0, 0))
					{
						::TranslateMessage(&msg) ;
						::DispatchMessage(&msg) ;
					}
					
					return msg.wParam ;
				}
				
				LRESULT CALLBACK WndProc(
					HWND   hwnd, 
					UINT   message, 
					WPARAM wParam, 
					LPARAM lParam
					)
				{
					static char    pszLine0[80] = "Hello from TestApp!";
					static wchar_t pszLine1[80] = L"Hello from TestApp!";
				    HDC hDC;                               
				    PAINTSTRUCT ps;
					
					switch(message)
				    {
				    case WM_PAINT:
				        hDC = ::BeginPaint(hwnd, &ps);
						::TextOutA(hDC, 0, 0, pszLine0, lstrlen(pszLine0));
						::TextOutW(hDC, 0, 20, pszLine1, wcslen(pszLine1));
				        ::EndPaint(hwnd, &ps);
						return 0;
				    case WM_DESTROY :
				        ::PostQuitMessage(0) ;
						return 0;
				    default:
				        break;
				    }
				    return DefWindowProc(hwnd, message, wParam, lParam) ;
				}