private void StartInternalWork()
        {
            Toolkit.TraceWriteLine("특정 스크린 프로세스 창 이동 방지를 시작합니다.");

            _isStartWindowWorker = true;

            Screen preventScreen = Screen.AllScreens[PreventMoveSceenIndex];

            while (_isStartWindowWorker)
            {
                foreach (Process process in Process.GetProcesses())
                {
                    if (ExceptProcessNames.Contains(process.ProcessName))
                    {
                        continue;
                    }

                    // 프로세스의 모든 윈도우 핸들 찾아서 처리할지 여부
                    if (_processAllWindowsHandleSetPosProcessNames.Contains(process.ProcessName))
                    {
                        // TODO: 특정 프로세스의 모든 윈도우 핸들을 찾아서 처리할지 여부도 이벤트핸들러로 정의 필요
                        foreach (IntPtr windowHandle in WindowManager.GetProcessWindowHandles(process.Id))
                        {
                            string          windowText = WindowManager.GetWindowText(windowHandle);
                            WindowPlacement wp         = new WindowPlacement();
                            if (User32.GetWindowPlacement(windowHandle, ref wp))
                            {
                                RECT rect = RECT.Empty;
                                User32.GetWindowRect(windowHandle, out rect);

                                // TODO: WindowPlacement ShowCmd.Maximize, ShowCmd.ShowMaximized 크기 20정도 줄이기
                                if (wp.ShowCmd == ShowWindowCommand.Maximize || wp.ShowCmd == ShowWindowCommand.ShowMaximized)
                                {
                                    // outRect 사이즈를 줄여야 함
                                    rect.Deflate(20, 20);
                                }

                                if (IsNearPreventScreenStartPositionOrEndPosition(preventScreen, ref rect))
                                {
                                }

                                if (ProcessAllWindowsHandleSetPos.Invoke(this, new ProcessAllSetWindowPosEventArgs(process, windowHandle, wp, windowText)))
                                {
                                    if (preventScreen.BoundsContains(rect.ToPoints()))
                                    {
                                        ProcessSetWindowPos(windowHandle, rect);

                                        string text = String.Format("ProcessSetWindowPos ProcessName={0}, Handle={1}, ShowWindowCommand={2}, Text={3}",
                                                                    process.ProcessName, windowHandle, wp.ShowCmd.ToString(), windowText);

                                        Toolkit.TraceWriteLine(text);
                                    }
                                }
                            }
                        }
                    }
                    else
                    {
                        WindowPlacement wp = new WindowPlacement();
                        if (User32.GetWindowPlacement(process.MainWindowHandle, ref wp))
                        {
                            RECT rect;
                            User32.GetWindowRect(process.MainWindowHandle, out rect);

                            // TODO: WindowPlacement ShowCmd.Maximize, ShowCmd.ShowMaximized 크기 20정도 줄이기
                            if (wp.ShowCmd == ShowWindowCommand.Maximize || wp.ShowCmd == ShowWindowCommand.ShowMaximized)
                            {
                                // outRect 사이즈를 줄여야 함
                                rect.Deflate(20, 20);
                            }

                            if (IsNearPreventScreenStartPositionOrEndPosition(preventScreen, ref rect))
                            {
                            }

                            if (preventScreen.BoundsContains(rect.ToPoints()))
                            {
                                ProcessSetWindowPos(process.MainWindowHandle, rect);

                                string text = String.Format("ProcessSetWindowPos ProcessName={0}, Handle={1}, ShowWindowCommand={2}, Title={3}",
                                                            process.ProcessName, process.MainWindowHandle, wp.ShowCmd.ToString(), process.MainWindowTitle);

                                Toolkit.TraceWriteLine(text);
                            }
                        }
                    }
                }
            }
        }