388______________________________________________ 6

 ,      WM_ACTIVATE. 
,        . -
   ,    ,   
.

    :

WM_ACTIVATE
fActive = LOWORD(wParam);

fMinimized = (BOOL) HIWORD(wParam);

hwndPrevious = (HWND) IParam;

    .

 fActive ,     .
  :

WA_ACTIVE             (, -
 SetActiveWindow  )

WA_CLICKACTIVE     
WA_INACTIVE       

 fMinimized ,  ,  .  -
   .

 hwndPrevious   ,    ,  -
     ,   ,   , 
  ,    .

 ,     ,    .
    ,     .

6.3.2  

 API Windows   ,   .

6.3.2.1  SendMessage

           !
,    .     -
 PostMessage,      .

 :

Int SendMessage(HWnd hWnd, unsigned int Msg, WPARAM wParam,
LPARAM IParam);

 hWnd   ,   . 
   HWND_BROADCAST,     
   ,    ,  .

 Msg   .  wParam  IPa-
ram    . ,  -
,    .

6.3.2.2  PostMessage

    SendMessage,        -
     .  , PostMessage  
   ,       -
     .

 :