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