在C#中使用热键隐含窗口

在C#中使用热键隐含窗口(6)         }

        /// <summary>
        /// Sets focus to this Window Object
        /// </summary>
        public void Activate()
        {
            if(m_hWnd == GetForegroundWindow())
                return;

            IntPtr ThreadID1 = GetWindowThreadProcessId(GetForegroundWindow(),
                                                        IntPtr.Zero);
            IntPtr ThreadID2 = GetWindowThreadProcessId(m_hWnd,IntPtr.Zero);
            
            if (ThreadID1 != ThreadID2)
            {
                AttachThreadInput(ThreadID1,ThreadID2,1);
                SetForegroundWindow(m_hWnd);
                AttachThreadInput(ThreadID1,ThreadID2,0);
            }
            else