WM_POWERBROADCAST

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)

{

int wmId, wmEvent;

PAINTSTRUCT ps;

HDC hdc;

TCHAR szHello[MAX_LOADSTRING];

LoadString(hInst, IDS_HELLO, szHello, MAX_LOADSTRING);

switch (message) 

{

case  WM_POWERBROADCAST:

{

MessageBox(0,"","",0);

}

break;

default:

return DefWindowProc(hWnd, message, wParam, lParam);

   }

   return 0;

}