public class Win32API
{
#region ==== Kernel32.dll ====

/// <summary>
/// 取得当前线程ID
/// </summary>
/// <returns></returns>
[DllImport( " kernel32.dll ", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
public static extern uint GetCurrentThreadId();

[DllImport( " kernel32.dll ", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
public static extern IntPtr CreateFile(
string lpFileName,
FileAccess dwDesiredAccess,
FileShare dwShareMode,
int lpSecurityAttributes,
FileMode dwCreationDisposition,
int dwFlagsAndAttributes,
IntPtr hTemplateFile);

/// <summary>
/// 打开进程
/// </summary>
/// <param name="dwDesiredAccess"> 想得到的访问权限 </param>
/// <param name="bInheritHandle"> 指定返回的句柄是否可以被继承 </param>
/// <param name="dwProcessId"> 指定要打开的进程的ID </param>
/// <returns></returns>
[DllImport( " kernel32.dll ", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
public static extern IntPtr OpenProcess(DesiredAccess dwDesiredAccess, bool bInheritHandle, uint dwProcessId);

/// <summary>
/// 结束其它进程
/// </summary>
/// <param name="hProcess"></param>
/// <param name="uExitCode"></param>
/// <returns></returns>
[DllImport( " kernel32.dll ", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
public static extern bool TerminateProcess(IntPtr hProcess, uint uExitCode);

/// <summary>
///
/// </summary>
/// <param name="hProcess"></param>
/// <param name="lpBaseAddress"></param>
/// <param name="lpBuffer"></param>
/// <param name="nSize"></param>
/// <param name="lpNumberOfBytesRead"></param>
/// <returns></returns>
[DllImport( " kernel32.dll ", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
public static extern bool ReadProcessMemory(IntPtr hProcess, IntPtr lpBaseAddress, IntPtr lpBuffer, uint nSize, out uint lpNumberOfBytesRead);

/// <summary>
///
/// </summary>
/// <param name="dwFlags"></param>
/// <param name="th32ProcessID"></param>
/// <returns></returns>
[DllImport( " kernel32.dll ", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
public static extern IntPtr CreateToolhelp32Snapshot( uint dwFlags, uint th32ProcessID);


// [DllImport("kernel32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
// public static extern bool Process32First(IntPtr hSnapshot, LPPROCESSENTRY32W lppe);

#endregion

#region ==== User32.dll ====

/// <summary>
/// 继续下一个钩子
/// </summary>
/// <param name="hhk"></param>
/// <param name="nCode"></param>
/// <param name="wParam"></param>
/// <param name="lParam"></param>
/// <returns></returns>
[DllImport( " user32.dll ", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
public static extern int CallNextHookEx(IntPtr hhk, int nCode, IntPtr wParam, IntPtr lParam);

/// <summary>
/// 获得一个顶层窗口的句柄，该窗口的类名和窗口名与给定的字符串相匹配。这个函数不查找子窗口。在查找时不区分大小写。
/// </summary>
/// <param name="lpClassName"> 指向一个指定了类名的空结束字符串，或一个标识类名字符串的成员的指针。如果该参数为一个成员，则它必须为前次调用theGlobafAddAtom函数产生的全局成员。该成员为16位，必须位于IpClassName的低 16位，高位必须为 0。 </param>
/// <param name="lpWindowName"> 指向一个指定了窗口名（窗口标题）的空结束字符串。如果该参数为空，则为所有窗口全匹配。 </param>
/// <returns> 如果函数成功，返回值为具有指定类名和窗口名的窗口句柄；如果函数失败，返回值为NULL </returns>
[DllImport( " user32.dll ", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
public static extern IntPtr FindWindow( string lpClassName, string lpWindowName);

/// <summary>
/// 检取表示键名的字符串
/// </summary>
/// <param name="lParam"></param>
/// <param name="lpBuffer"></param>
/// <param name="nSize"></param>
/// <returns></returns>
[DllImport( " user32.dll ", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
public static extern int GetKeyNameText(IntPtr lParam, string lpBuffer, int nSize);

/// <summary>
///
/// </summary>
/// <param name="hWnd"> 收消息的窗口的句柄 </param>
/// <param name="Msg"> 指定被发送的消息 </param>
/// <param name="wParam"></param>
/// <param name="lParam"></param>
/// <returns></returns>
[DllImport( " user32.dll ", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
public static extern long SendMessage(IntPtr hWnd, uint Msg, IntPtr wParam, IntPtr lParam);

/// <summary>
/// 改变一个子窗口，弹出式窗口式顶层窗口的尺寸，位置和Z序。子窗口，弹出式窗口，及顶层窗口根据它们在屏幕上出现的顺序排序、顶层窗口设置的级别最高，并且被设置为Z序的第一个窗口。
/// </summary>
/// <param name="hWnd"> 窗口句柄 </param>
/// <param name="hWndInsertAfter"> 在z序中的位于被置位的窗口前的窗口句柄 </param>
/// <param name="X"> 以客户坐标指定窗口新位置的左边界 </param>
/// <param name="Y"> 以客户坐标指定窗口新位置的顶边界 </param>
/// <param name="cx"> 以像素指定窗口的新的宽度 </param>
/// <param name="cy"> 以像素指定窗口的新的高度 </param>
/// <param name="uFlags"> 窗口尺寸和定位的标志 </param>
/// <returns></returns>
[DllImport( " user32.dll ", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
public static extern bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int x, int y, int cx, int cy, SWP_Flags uFlags);

/// <summary>
/// 安装钩子
/// </summary>
/// <param name="idHook"> 钩子类型 </param>
/// <param name="lpfn"> 钩子函数的地址 </param>
/// <param name="hMod"> 钩子函数所在DLL的实例名柄. 如果一个局部的钩子, 该参数的值为 NULL </param>
/// <param name="dwThreadId"> 要安装钩子的线程, 0 为全局钩子 </param>
/// <returns> 钩子句柄 </returns>
[DllImport( " user32.dll ", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
public static extern IntPtr SetWindowsHookEx(WH_Codes idHook, HookProc lpfn, IntPtr hMod, uint dwThreadId);

/// <summary>
/// 卸载钩子
/// </summary>
/// <param name="hhk"> 要卸载的钩子的句柄 </param>
/// <returns></returns>
[DllImport( " user32.dll ", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
public static extern bool UnhookWindowsHookEx(IntPtr hhk);

#endregion

#region ==== 文件系统 ====

#region ==== 磁盘和驱动器管理类 API ===

#endregion

#endregion
}

本文转自94cool博客园博客，原文链接：http://www.cnblogs.com/94cool/archive/2010/04/27/1722030.html，如需转载请自行联系原作者