[Kpyc]

Открываю файл

Код:

hFile := OpenFile('log.txt', info, GENERIC_WRITE or OF_SHARE_DENY_NONE);

И пытаюсь записать в него

Код:

OK := writefile(hFile, temp, length(temp), bw, 0);

Не фурычит, в чем подвох?
Полный код

Код:

program Win1;

uses
  Windows,
  Messages, SysUtils;

var
  WndClass: TWndClass;
  szAppName: PChar;
  WinHandle: hwnd;
  info: ofstruct;
  bw: cardinal;
  hFile: THandle;
  Msg: TMsg;
  temp: char = 'C';
  ok: boolean;

function MyWndProc(hWnd: HWND; Msg: UINT;
  wParam: WPARAM; lParam: LPARAM): LResult; stdcall;
var
  i: Integer;

begin
  case Msg of
    WM_DESTROY:
    begin
      PostQuitMessage(0);
      Result := 0;
    end;

    WM_KEYDOWN:
    begin
      OK := writefile(hFile, temp, length(temp), bw, 0);
      Result := DefWindowProc(hWnd, Msg, wParam, lParam);
    end

  else
    Result := DefWindowProc(hWnd, Msg, wParam, lParam);
  end;
end;

begin
  szAppName := 'Hello windows.';
  WndClass.style := CS_HREDRAW or CS_VREDRAW;
  WndClass.lpfnWndProc := @MyWndProc;
  WndClass.cbClsExtra := 0;
  WndClass.cbWndExtra := 0;
  WndClass.hInstance := hInstance;
  WndClass.hIcon := LoadIcon(hInstance, IDI_APPLICATION);
  WndClass.hCursor := LoadCursor(hInstance, IDC_ARROW);
  WndClass.hbrBackground := CreateSolidBrush($FFFFFF);
  WndClass.lpszMenuName := nil;
  WndClass.lpszClassName := szAppName;
  RegisterClass(WndClass);
  WinHandle := CreateWindow(WndClass.lpszClassName, 'The Hello Program',
                                                    WS_OVERLAPPEDWINDOW,
                                                    CW_USEDEFAULT,
                                                    CW_USEDEFAULT,
                                                    CW_USEDEFAULT,
                                                    CW_USEDEFAULT,
                                                    0,
                                                    0,
                                                    hInstance,
                                                    nil);
  ShowWindow(WinHandle, SW_SHOW);
  UpdateWindow(WinHandle);
  hFile := OpenFile('log.txt', info, GENERIC_WRITE or OF_SHARE_DENY_NONE);

  while GetMessage(Msg, 0, 0, 0) do
    begin
      TranslateMessage(Msg);
      DispatchMessage(Msg);
    end;
end.