Оформил: DeeCo
Автор: http://www.swissdelphicenter.ch

//********************************************************************** 
// Check if hibernation is allowed 
//********************************************************************* 

function HibernateAllowed: Boolean;
 type
   TIsPwrHibernateAllowed = function: Boolean;
   stdcall;
 var
   hPowrprof: HMODULE;
   IsPwrHibernateAllowed: TIsPwrHibernateAllowed;
 begin
   Result := False;
   if IsNT4Or95 then Exit;
   hPowrprof := LoadLibrary('powrprof.dll');
   if hPowrprof <> 0 then
   begin
     try
       @IsPwrHibernateAllowed := GetProcAddress(hPowrprof, 'IsPwrHibernateAllowed');
       if @IsPwrHibernateAllowed <> nil then
       begin
         Result := IsPwrHibernateAllowed;
       end;
     finally
       FreeLibrary(hPowrprof);
     end;
   end;
 end;


 //********************************************************************** 
// Check if suspend is allowed 
//********************************************************************** 

function SuspendAllowed: Boolean;
 type
   TIsPwrSuspendAllowed = function: Boolean;
   stdcall;
 var
   hPowrprof: HMODULE;
   IsPwrSuspendAllowed: TIsPwrSuspendAllowed;
 begin
   Result := False;
   hPowrprof := LoadLibrary('powrprof.dll');
   if hPowrprof <> 0 then
   begin
     try
       @IsPwrSuspendAllowed := GetProcAddress(hPowrprof, 'IsPwrSuspendAllowed');
       if @IsPwrSuspendAllowed <> nil then
       begin
         Result := IsPwrSuspendAllowed;
       end;
     finally
       FreeLibrary(hPowrprof);
     end;
   end;
 end;