从上次关闭窗口的位置启动窗口

  public partial class Frm_Main : Form

    {

        public Frm_Main()

        {

            InitializeComponent();

        }



        private void Frm_Main_Load(object sender, EventArgs e)

        {

            RegistryKey myReg1, myReg2;//声明注册表对象

            myReg1 = Registry.CurrentUser;//获取当前用户注册表项

            try

            {

                myReg2 = myReg1.CreateSubKey("Software\\MySoft");//在注册表项中创建子项

                this.Location = new Point(Convert.ToInt16(myReg2.GetValue("1")), Convert.ToInt16(myReg2.GetValue("2")));//设置窗体的显示位置

            }

            catch { }

        }



        private void Frm_Main_FormClosed(object sender, FormClosedEventArgs e)

        {

            RegistryKey myReg1, myReg2;//声明注册表对象

            myReg1 = Registry.CurrentUser;//获取当前用户注册表项

            myReg2 = myReg1.CreateSubKey("Software\\MySoft");//在注册表项中创建子项

            try

            {

                myReg2.SetValue("1", this.Location.X.ToString());//将窗体关闭位置的x坐标写入注册表

                myReg2.SetValue("2", this.Location.Y.ToString());//将窗体关闭位置的y坐标写入注册表

            }

            catch { }

        }

    }