WinForm各种API---时时更新

 

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本文原文地址：http://www.cnblogs.com/hqxc/p/6160685.html 

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[DllImport("user32.dll")]
public static extern bool ReleaseCapture();
[DllImport("user32.dll")]
public static extern bool SendMessage(IntPtr hwnd, int wMsg, int wParam, int IParam);
public const int WM_SYSCOMMAND = 0x0112;
public const int SC_MOVE = 0xF010;
public const int HTCAPTION = 0x0002;
[DllImport("user32")]
private static extern int SendMessage(IntPtr hwnd, int wMsg, int wParam, IntPtr lParam);
private const int WM_SETREDRAW = 0xB;



private void Form1_MouseDown(object sender, MouseEventArgs e)
{
    if (this.WindowState == FormWindowState.Normal)
    {
        ReleaseCapture();
        SendMessage(this.Handle, WM_SYSCOMMAND, SC_MOVE + HTCAPTION, 0);
    }
}

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        const int CS_DropSHADOW = 0x20000;
        const int GCL_STYLE = (-26);
        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern int SetClassLong(IntPtr hwnd, int nIndex, int dwNewLong);
        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern int GetClassLong(IntPtr hwnd, int nIndex);


        public Form1()
        {
            InitializeComponent();
            SetClassLong(this.Handle, GCL_STYLE, GetClassLong(this.Handle, GCL_STYLE) | CS_DropSHADOW);
        }

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        const int WM_NCHITTEST = 0x0084;
        const int HT_LEFT = 10;
        const int HT_RIGHT = 11;
        const int HT_TOP = 12;
        const int HT_TOPLEFT = 13;
        const int HT_TOPRIGHT = 14;
        const int HT_BOTTOM = 15;
        const int HT_BOTTOMLEFT = 16;
        const int HT_BOTTOMRIGHT = 17;
        const int HT_CAPTION = 2;
        #region 调大小
        protected override void WndProc(ref Message Msg)
        {
            if (Msg.Msg == WM_NCHITTEST)
            {
                //获取鼠标位置
                int nPosX = (Msg.LParam.ToInt32() & 65535);
                int nPosY = (Msg.LParam.ToInt32() >> 16);
                //右下角
                if (nPosX >= this.Right - 6 && nPosY >= this.Bottom - 6)
                {
                    Msg.Result = new IntPtr(HT_BOTTOMRIGHT);
                    return;
                }
                //左上角
                else if (nPosX <= this.Left + 6 && nPosY <= this.Top + 6)
                {
                    Msg.Result = new IntPtr(HT_TOPLEFT);
                    return;
                }
                //左下角
                else if (nPosX <= this.Left + 6 && nPosY >= this.Bottom - 6)
                {
                    Msg.Result = new IntPtr(HT_BOTTOMLEFT);
                    return;
                }
                //右上角
                else if (nPosX >= this.Right - 6 && nPosY <= this.Top + 6)
                {
                    Msg.Result = new IntPtr(HT_TOPRIGHT);
                    return;
                }
                else if (nPosX >= this.Right - 4)
                {
                    Msg.Result = new IntPtr(HT_RIGHT);
                    return;
                }
                else if (nPosY >= this.Bottom - 4)
                {
                    Msg.Result = new IntPtr(HT_BOTTOM);
                    return;
                }
                else if (nPosX <= this.Left + 4)
                {
                    Msg.Result = new IntPtr(HT_LEFT);
                    return;
                }
                else if (nPosY <= this.Top + 4)
                {
                    Msg.Result = new IntPtr(HT_TOP);
                    return;
                }
                else
                {
                    Msg.Result = new IntPtr(HT_CAPTION);
                    return;
                }
            }
            base.WndProc(ref Msg);
        }
        #endregion

系统热键API

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        System.Timers.Timer time = new System.Timers.Timer();
        [System.Runtime.InteropServices.DllImport("user32.dll")] //申明API函数
        public static extern bool RegisterHotKey(IntPtr hWnd, int id, uint fsModifiers, Keys vk);
        [System.Runtime.InteropServices.DllImport("user32.dll")] //申明API函数         
        public static extern bool UnregisterHotKey(IntPtr hWnd, int id);
        [System.Runtime.InteropServices.DllImport("user32")]
        private static extern int mouse_event(int dwFlags, int dx, int dy, int cButtons, int dwExtraInfo);
        const int MOUSEEVENTF_LEFTDOWN = 0x0002;
        const int MOUSEEVENTF_LEFTUP = 0x0004;//模拟鼠标左键抬起 
        const int MOUSEEVENTF_RIGHTDOWN = 0x0008;
        const int MOUSEEVENTF_RIGHTUP = 0x0010;

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        protected override void WndProc(ref Message Msg)
        {
            const int WM_HOTKEY = 0x0312;//如果m.Msg的值为0x0312那么表示用户按下了热键           
            switch (Msg.Msg)
            {
                case WM_HOTKEY:
                    ProcessHotkey(Msg);//按下热键时调用ProcessHotkey()函数        
                    break;
            }
            base.WndProc(ref Msg);
        }

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        int ijk = 0;//标记变量无意义
        private void ProcessHotkey(Message m) //按下设定的键时调用该函数        
        {
            IntPtr id = m.WParam; //IntPtr用于表示指针或句柄的平台特定类型            
            //MessageBox.Show(id.ToString()); 
            string sid = id.ToString();
            switch (sid)
            {
                case "100"://热键ID
                    if (ijk == 0)
                    {
                        this.Size = new Size(1, 1);
                        ijk = 1;
                    }
                    else
                    {
                        this.Size = new Size(819, 492);
                        ijk = 0;
                    }
                    break;
            }
        }

　　RegisterHotKey(this.Handle, 100, 2, Keys.D1);-----注册热键

　　RegisterHotKey(本窗口句柄, 热键ID, 第一个键, 第二个键);

　　　　　第一个键：0---null

1---Alt

2---Ctrl

3---Shift

4---Windows

第二个键：Keys.键  Keys可以点出来

PS：热键设为同一个有奇效【手动斜眼】

---

 

　　UnregisterHotKey(this.Handle, 100);-----移除热键

　　UnregisterHotKey(本窗口句柄, 热键ID);
　　PS：一定不要忘了移除啊！！！

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        #region 加密






        //加密


        public static string Encode(string data, string Key_64, string Iv_64)
        {


            string KEY_64 = Key_64;// "VavicApp";


            string IV_64 = Iv_64;// "VavicApp";


            try
            {


                byte[] byKey = System.Text.ASCIIEncoding.ASCII.GetBytes(KEY_64);


                byte[] byIV = System.Text.ASCIIEncoding.ASCII.GetBytes(IV_64);




                DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider();


                int i = cryptoProvider.KeySize;


                MemoryStream ms = new MemoryStream();


                CryptoStream cst = new CryptoStream(ms, cryptoProvider.CreateEncryptor(byKey, byIV), CryptoStreamMode.Write);


                StreamWriter sw = new StreamWriter(cst);




                sw.Write(data);


                sw.Flush();


                cst.FlushFinalBlock();


                sw.Flush();


                return Convert.ToBase64String(ms.GetBuffer(), 0, (int)ms.Length);


            }


            catch (Exception x)
            {


                return x.Message;


            }




        }


        #endregion

        #region 解密





        //解密


        public static string Decode(string data, string Key_64, string Iv_64)
        {


            string KEY_64 = Key_64;// "VavicApp";密钥


            string IV_64 = Iv_64;// "VavicApp"; 向量


            try
            {


                byte[] byKey = System.Text.ASCIIEncoding.ASCII.GetBytes(KEY_64);


                byte[] byIV = System.Text.ASCIIEncoding.ASCII.GetBytes(IV_64);


                byte[] byEnc;


                byEnc = Convert.FromBase64String(data); //把需要解密的字符串转为8位无符号数组


                DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider();


                MemoryStream ms = new MemoryStream(byEnc);


                CryptoStream cst = new CryptoStream(ms, cryptoProvider.CreateDecryptor(byKey, byIV), CryptoStreamMode.Read);


                StreamReader sr = new StreamReader(cst);


                return sr.ReadToEnd();


            }


            catch (Exception x)
            {


                return x.Message;


            }


        }


        #endregion