윈도우즈 노트 - 간단한 윈도우즈 GUI 응용 프로그램

  
    

   
     
   
     #include
   
     <
   
     windows.h
   
     >
   
      
   
     //
   
        Windows          
   
     

   
     
LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM); 
   
     //
   
              
   
     

   
     

   
     int
   
      WINAPI WinMain(HINSTANCE hInstance,
 HINSTANCE hPrevInstance,
 LPSTR lpCmdLine,
 
   
     int
   
      nShowCmd)
{
 HWND hwnd; 
   
     //
   
            
   
     

   
      MSG msg; 
   
     //
   
                   
   
     

   
      TCHAR lpszClassName[] 
   
     =
   
      TEXT(
   
     "
   
       
   
     "
   
     );

 WNDCLASS wc; 
   
     //
   
               
   
     

   
      wc.style 
   
     =
   
      CS_HREDRAW 
   
     |
   
      CS_VREDRAW;
 wc.lpfnWndProc 
   
     =
   
      WndProc;
 wc.cbClsExtra 
   
     =
   
      
   
     0
   
     ;
 wc.cbWndExtra 
   
     =
   
      
   
     0
   
     ;
 wc.hInstance 
   
     =
   
      hInstance;
 wc.hIcon 
   
     =
   
      ::LoadIcon(NULL,IDI_APPLICATION);
 wc.hCursor 
   
     =
   
      ::LoadCursor(NULL,IDC_ARROW);
 wc.hbrBackground 
   
     =
   
      (HBRUSH)::GetStockObject(WHITE_BRUSH);
 wc.lpszMenuName 
   
     =
   
      NULL;
 wc.lpszClassName 
   
     =
   
      lpszClassName;

 ::RegisterClass(
   
     &
   
     wc); 
   
     //
   
          
   
     

   
     
 hwnd
   
     =
   
      CreateWindow(lpszClassName, 
   
     //
   
          
   
     

   
      TEXT(
   
     "
   
     Windows
   
     "
   
     ),
 WS_OVERLAPPEDWINDOW,
 
   
     120
   
     ,
   
     50
   
     ,
   
     800
   
     ,
   
     600
   
     ,
 NULL,
 NULL,
 hInstance,
 NULL);

 ::ShowWindow(hwnd,SW_SHOWNORMAL); 
   
     //
   
          
   
     

   
      ::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)
{
 
   
     switch
   
     (message)
 {
 
   
     case
   
      WM_LBUTTONDOWN: 
   
     //
   
             
   
     

   
      {
 ::MessageBeep(
   
     0
   
     ); 
   
     //
   
             API  
   
     

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