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, );
     }
 }

窗体移动API

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         const int CS_DropSHADOW = 0x20000;
         const int GCL_STYLE = (-);
         [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);
         }

窗体阴影API

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         const int WM_NCHITTEST = 0x0084;
         const int HT_LEFT = ;
         const int HT_RIGHT = ;
         const int HT_TOP = ;
         const int HT_TOPLEFT = ;
         const int HT_TOPRIGHT = ;
         const int HT_BOTTOM = ;
         const int HT_BOTTOMLEFT = ;
         const int HT_BOTTOMRIGHT = ;
         const int HT_CAPTION = ;
         #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() & );
                 int nPosY = (Msg.LParam.ToInt32() >> );
                 //右下角
                 if (nPosX >= this.Right -  && nPosY >= this.Bottom - )
                 {
                     Msg.Result = new IntPtr(HT_BOTTOMRIGHT);
                     return;
                 }
                 //左上角
                 else if (nPosX <= this.Left +  && nPosY <= this.Top + )
                 {
                     Msg.Result = new IntPtr(HT_TOPLEFT);
                     return;
                 }
                 //左下角
                 else if (nPosX <= this.Left +  && nPosY >= this.Bottom - )
                 {
                     Msg.Result = new IntPtr(HT_BOTTOMLEFT);
                     return;
                 }
                 //右上角
                 else if (nPosX >= this.Right -  && nPosY <= this.Top + )
                 {
                     Msg.Result = new IntPtr(HT_TOPRIGHT);
                     return;
                 }
                 else if (nPosX >= this.Right - )
                 {
                     Msg.Result = new IntPtr(HT_RIGHT);
                     return;
                 }
                 else if (nPosY >= this.Bottom - )
                 {
                     Msg.Result = new IntPtr(HT_BOTTOM);
                     return;
                 }
                 else if (nPosX <= this.Left + )
                 {
                     Msg.Result = new IntPtr(HT_LEFT);
                     return;
                 }
                 else if (nPosY <= this.Top + )
                 {
                     Msg.Result = new IntPtr(HT_TOP);
                     return;
                 }
                 else
                 {
                     Msg.Result = new IntPtr(HT_CAPTION);
                     return;
                 }
             }
             base.WndProc(ref Msg);
         }
         #endregion

无边框拖动大小API

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;

申明API、定义常量

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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);
         }

接收热键函数

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         int ijk = ;//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 ""://热键ID
                     if (ijk == )
                     {
                         this.Size = new Size(, );
                         ijk = ;
                     }
                     else
                     {
                         this.Size = new Size(, );
                         ijk = ;
                     }
                     break;
             }
         }

热键调用的函数

　　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(), , (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

C#简单的加密解密