Здравствуйте!

Помогите перевести определение интерфейса с дльфи на с++
IExtWndsSupport = interface(IUnknown)
    ['{EFE19EA0-09E4-11D2-A601-008048DA00DE}']
    function GetAppMainFrame(var hwnd: HWND): HResult; stdcall;
    function GetAppMDIFrame(var hwnd: HWND): HResult; stdcall;
    function CreateAddInWindow(const bstrProgID: WideString; const bstrWindowName: WideString;
                             dwStyles: Integer; dwExStyles: Integer; var rctl: RECT;
                             Flags: Integer; var pHwnd: HWND; var pDisp: IDispatch): HResult; stdcall;
  end;