fronty

#include <windows.h>LRESULT CALLBACK ViestinKasittelija( HWND hWnd, UINT Viesti, WPARAM wParam, LPARAM lParam );HRESULT LuoIkkuna( HINSTANCE hInstance, int nCmdShow);    MSG viesti;int WINAPI WinMain (HINSTANCE   hInstance,                    HINSTANCE   hPreviousInstance,                    LPSTR       lpCmdLine,                    int         nCmdShow ) {        LuoIkkuna( hInstance, nCmdShow );    while(viesti.message != WM_QUIT) {                         if( PeekMessage( &viesti, NULL, 0U, 0U, PM_REMOVE ) ) {                                      TranslateMessage( &viesti );                                      DispatchMessage( &viesti );                                      }                         else {                                                  }                         UnregisterClass( "IkkunaLuokanNimi", hInstance );                         return 0;}HRESULT LuoIkkuna( HINSTANCE hInstance,                   int nCmdShow){     HWND  hWnd;   /* WindowHandle, kahva ikkunan ilmentymään */     WNDCLASS wc;  /* Ikkunaluokka */          wc.style          =  CS_HREDRAW | CS_VREDRAW;     wc.lpfnWndProc    =  ViestinKasittelija;     wc.cbClsExtra     =  0;     wc.cbWndExtra     =  0;     wc.hInstance      =  hInstance;     wc.hIcon          =  LoadIcon((HINSTANCE) NULL, IDI_APPLICATION);     wc.hCursor        =  LoadCursor((HINSTANCE) NULL,IDC_ARROW);     wc.hbrBackground  =  (HBRUSH)GetStockObject(WHITE_BRUSH);     wc.lpszMenuName   =  NULL;     wc.lpszClassName  =  "IkkunaLuokanNimi";     if(!RegisterClass(&wc))      return FALSE;    hWnd = CreateWindow( "IkkunaLuokanNimi",                          "Esimerkkiohjelma",                          WS_OVERLAPPEDWINDOW,                         CW_USEDEFAULT,                          CW_USEDEFAULT,                          CW_USEDEFAULT,                         CW_USEDEFAULT,                          (HWND)  NULL,                          (HMENU) NULL,                         hInstance,                          (LPVOID) NULL );          if( !hWnd ) {         return FALSE;         }     ShowWindow( hWnd, nCmdShow );     UpdateWindow( hWnd );          return S_OK;}LRESULT CALLBACK ViestinKasittelija( HWND hWnd,                                     UINT viesti,                                     WPARAM wParam,                                     LPARAM lParam ){     switch( viesti ) {             case WM_DESTROY:                   {                              PostQuitMessage( 0 );                              return TRUE;                              break;                              }                   }     return DefWindowProc( hWnd, viesti, wParam, lParam );}}