PowerProxySwitch 一键切换内置代理

由于在学校是校园网，所以访问外网需要代理，一般而言是直接使用搜狗浏览器自带的代理加速，但是搜狗的浏览器做得实在不尽人意，再加之也需要访问国外网，因此就需要一款实时切换的代理。

 

由于注册表修改代理的办法具有很大的局限性，包含LAN代理和宽带拨号代理，而且需要准确定位到是哪个拨号现在正在进行拨号，还需要费劲一番心思

经过我到国外网站寻找的资料加上自己的ipconfig获取关键字字段的新创意，最终完成了这个一键切换。

 

首先是实现UI类，在屏幕中显示GUI绘制的椭圆形透明框

class InstanceGUI

    {









        [DllImport("user32.dll", CharSet = CharSet.Auto, ExactSpelling = true)]

        public static extern IntPtr GetDesktopWindow();



        [DllImport("user32.dll", CharSet = CharSet.Auto, ExactSpelling = true)]

        public static extern bool RedrawWindow(IntPtr hwnd, Rectangle rcUpdate, IntPtr hrgnUpdate, int flags);



        [DllImport("user32.dll", EntryPoint = "GetDCEx", CharSet = CharSet.Auto, ExactSpelling = true)]

        private static extern IntPtr GetDCEx(IntPtr hWnd, IntPtr hrgnClip, int flags);



        [DllImport("user32.dll")]

        public static extern bool InvalidateRect(IntPtr hwnd, IntPtr lpRect, bool bErase);



       static System.Timers.Timer t = new System.Timers.Timer(3000);





        public static void Instance(string text)

        {





            Screen screen = Screen.PrimaryScreen;





            IntPtr desk = GetDesktopWindow();



            IntPtr deskDC = GetDCEx(desk, IntPtr.Zero, 0x403);



            RedrawWindow(desk, new Rectangle(), IntPtr.Zero, 0x85);

            



            Graphics g = Graphics.FromHdc(deskDC);



            string tiptext = text;





            g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;



            System.Drawing.Color Mycolor = System.Drawing.Color.FromArgb(180, Color.White);//说明：1-（128/255）=1-0.5=0.5 透明度为0.5，即50%

            System.Drawing.SolidBrush sb1 = new System.Drawing.SolidBrush(Mycolor);



            FillRoundRectangle(g, sb1, new Rectangle(screen.Bounds.Width / 2 - (tiptext.Length / 2) * 20, screen.Bounds.Height - 100, tiptext.Length * 27, 35),7);





            g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAliasGridFit;//开启抗锯齿



            g.DrawString(tiptext, new Font("黑体", 19, FontStyle.Regular), Brushes.OrangeRed, new PointF(screen.Bounds.Width / 2 - (tiptext.Length / 2) * 20, screen.Bounds.Height - 95));



            // DrawRoundRectangle(g, Pens.Yellow, new Rectangle(screen.Bounds.Width / 2 - (tiptext.Length / 2) * 20, screen.Bounds.Height - 100, tiptext.Length * 20, 40), 10);

            

            g.Dispose();





            

            //到达时间的时候执行事件；

            t.Elapsed += new System.Timers.ElapsedEventHandler(DoRefresh);

            t.AutoReset = false;//设置是执行一次（false）还是一直执行(true)； 

            t.Enabled = true;//是否执行System.Timers.Timer.Elapsed事件；

             

        

        }





        

        public static void DoRefresh(object sender, ElapsedEventArgs e)

        {

            t.Enabled = false ;//是否执行System.Timers.Timer.Elapsed事件；

            InvalidateRect(IntPtr.Zero, IntPtr.Zero, true);

        

        }



        public static void DrawRoundRectangle(Graphics g, Pen pen, Rectangle rect, int cornerRadius) //或者外圈

        {

            using (GraphicsPath path = CreateRoundedRectanglePath(rect, cornerRadius))

            {

                g.DrawPath(pen, path);

            }

        }



        public static void FillRoundRectangle(Graphics g, Brush brush, Rectangle rect, int cornerRadius) //填充内圈

        {

            using (GraphicsPath path = CreateRoundedRectanglePath(rect, cornerRadius))

            {

                g.FillPath(brush, path);

            }

        }



        internal static GraphicsPath CreateRoundedRectanglePath(Rectangle rect, int cornerRadius)

        {

            GraphicsPath roundedRect = new GraphicsPath();

            roundedRect.AddArc(rect.X, rect.Y, cornerRadius * 2, cornerRadius * 2, 180, 90);

            roundedRect.AddLine(rect.X + cornerRadius, rect.Y, rect.Right - cornerRadius * 2, rect.Y);

            roundedRect.AddArc(rect.X + rect.Width - cornerRadius * 2, rect.Y, cornerRadius * 2, cornerRadius * 2, 270, 90);

            roundedRect.AddLine(rect.Right, rect.Y + cornerRadius * 2, rect.Right, rect.Y + rect.Height - cornerRadius * 2);

            roundedRect.AddArc(rect.X + rect.Width - cornerRadius * 2, rect.Y + rect.Height - cornerRadius * 2, cornerRadius * 2, cornerRadius * 2, 0, 90);

            roundedRect.AddLine(rect.Right - cornerRadius * 2, rect.Bottom, rect.X + cornerRadius * 2, rect.Bottom);

            roundedRect.AddArc(rect.X, rect.Bottom - cornerRadius * 2, cornerRadius * 2, cornerRadius * 2, 90, 90);

            roundedRect.AddLine(rect.X, rect.Bottom - cornerRadius * 2, rect.X, rect.Y + cornerRadius * 2);

            roundedRect.CloseFigure();

            return roundedRect;

        }







    }

 

主要的代理设置代码：

        public void ProxySet(string IPandPort)

        {



            System.Int32 dwFlag = new int();









            if (!InternetGetConnectedState(ref   dwFlag, 0))

            { 

                //TODO LIST 如果未联网

                MessageBox.Show("你当前尚未连接网络！");

            }



            else if ((dwFlag & INTERNET_CONNECTION_LAN) != 0) //LAN上网代理设置



            {

                //打开注册表键 

                Microsoft.Win32.RegistryKey rk = Microsoft.Win32.Registry.CurrentUser.OpenSubKey(@"Software\Microsoft\Windows\CurrentVersion\Internet Settings", true);



                //设置代理可用 

                rk.SetValue("ProxyEnable", 1);

                //设置代理IP和端口 

                rk.SetValue("ProxyServer", IPandPort);

                rk.Close();

                Reflush();

            }



            else if ((dwFlag & INTERNET_CONNECTION_MODEM) != 0) //拨号上网代理设置

            {



                Regex emailregex = new Regex("(?<=PPP .*? ).*?(?=:)");

                    String s = GetIPConfigReturns();

                    Match m = emailregex.Match(s);

                    PPPConName = m.Value;

                



                if (PPPConName.Equals("")) { MessageBox.Show("找不到宽带连接名！"); return; } //出错







                int i = (IPandPort).Length;

                byte[] key = new byte[50];

                char[] source = (IPandPort).ToCharArray();

                key[0] = 60;

                key[4] = 3;

                key[8] = 3;

                key[12] = (byte)i;

                for (int ii = 0; ii < source.Length; ii++)

                {

                    key[16 + ii] = ChangeTobyte(source[ii]);

                }

                string sDirectX = "";

                for (int k = 0; k < key.Length; k++)

                {

                    if (key[k] != 0)

                    {

                        sDirectX += key[k] + " ";

                    }

                }

                //MessageBox.Show(sDirectX);

                RegistryKey pregkey;

                pregkey = Registry.CurrentUser.OpenSubKey("Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\Connections", true);

                if (pregkey == null)

                {

                    Console.WriteLine("键值不存在");

                }

                else

                {

                    pregkey.SetValue(PPPConName, key, RegistryValueKind.Binary);

                    //激活代理设置

                    

                    Reflush();



                }

                pregkey.Close();

            

            }

 

 

有了这个之后 上网巨方便~所谓自己动手 丰衣足食。

两个代理

一个搜狗是调出早期搜狗浏览器的代理核心，免费使用搜狐的强大免费代理服务器

另一个是Goagent，同样是强大的免费谷歌服务器，速度暴快~看Youtube比优酷还快