C#流程杀戮

Question

我需要在c#中编写一个程序来启动,杀死一个它应该杀死并结束自身的进程\ exe.

我需要杀死的进程是另一个C#应用程序,所以它是一个本地用户进程,我知道exe的路径.

Answer 1

查看Process.GetProcessesByName和Process.Kill

// Get all instances of Notepad running on the local
// computer.
Process [] localByName = Process.GetProcessesByName("notepad");
foreach(Process p in localByName)
{
   p.Kill();
}

Answer 2

首先搜索要杀死的进程的所有进程,然后再搜索它.

Process[] runningProcesses = Process.GetProcesses();
foreach (Process process in runningProcesses)
{
    // now check the modules of the process
    foreach (ProcessModule module in process.Modules)
    {
        if (module.FileName.Equals("MyProcess.exe"))
        {
            process.Kill();
        }
    }
}

Answer 3

按名称杀死进程可以在C#中轻松完成(因为其他答案已经完全显示).但是,如果你想根据可执行文件的完整路径杀死进程,则会变得更加棘手.一种方法是使用WMI,另一种方法是使用Module32FirstWindows API函数.

以下示例使用后一种方法.它首先按名称选择正在运行的进程的子集,然后查询每个进程的完整可执行路径.请注意,此路径将是正在执行的映像的实际路径,这不一定是已启动的可执行文件(例如,在x64系统上,calc.exe的实际路径将为C:\ Windows\SysWOW64\calc.exe,即使文件C:\ Windows\system32\calc.exe已启动).具有匹配路径的所有进程都返回GetProcessesByPath:

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Runtime.ConstrainedExecution;
using System.Runtime.InteropServices;
using Microsoft.Win32.SafeHandles;

class Program
{
    static void Main(string[] args)
    {
        Process[] processList = GetProcessesByPath(@"C:\Program Files\MyCalculator\calc.exe");
        foreach (var process in processList)
        {
            if (!process.HasExited)
                process.Kill();
        }
    }

    static Process[] GetProcessesByPath(string path)
    {
        List<Process> result = new List<Process>();

        string processName = Path.GetFileNameWithoutExtension(path);
        foreach (var process in Process.GetProcessesByName(processName))
        {
            ToolHelpHandle hModuleSnap = NativeMethods.CreateToolhelp32Snapshot(NativeMethods.SnapshotFlags.Module, (uint)process.Id);
            if (!hModuleSnap.IsInvalid)
            {
                NativeMethods.MODULEENTRY32 me32 = new NativeMethods.MODULEENTRY32();
                me32.dwSize = (uint)System.Runtime.InteropServices.Marshal.SizeOf(me32);
                if (NativeMethods.Module32First(hModuleSnap, ref me32))
                {
                    if (me32.szExePath == path)
                    {
                        result.Add(process);
                    }
                }
                hModuleSnap.Close();
            }
        }

        return result.ToArray();
    }
}

//
// The safe handle class is used to safely encapsulate win32 handles below
//
public class ToolHelpHandle : SafeHandleZeroOrMinusOneIsInvalid
{
    private ToolHelpHandle()
        : base(true)
    {
    }

    [ReliabilityContract(Consistency.WillNotCorruptState, Cer.MayFail)]
    protected override bool ReleaseHandle()
    {
        return NativeMethods.CloseHandle(handle);
    }
}
//
// The following p/invoke wrappers are used to get the list of process and modules
// running inside each process.
//
public class NativeMethods
{
    [DllImport("kernel32.dll", SetLastError = true)]
    static public extern bool CloseHandle(IntPtr hHandle);

    [DllImport("kernel32.dll")]
    static public extern bool Module32First(ToolHelpHandle hSnapshot, ref MODULEENTRY32 lpme);

    [DllImport("kernel32.dll")]
    static public extern bool Module32Next(ToolHelpHandle hSnapshot, ref MODULEENTRY32 lpme);

    [DllImport("kernel32.dll")]
    static public extern bool Process32First(ToolHelpHandle hSnapshot, ref PROCESSENTRY32 lppe);

    [DllImport("kernel32.dll")]
    static public extern bool Process32Next(ToolHelpHandle hSnapshot, ref PROCESSENTRY32 lppe);

    [DllImport("kernel32.dll", SetLastError = true)]
    static public extern ToolHelpHandle CreateToolhelp32Snapshot(SnapshotFlags dwFlags, uint th32ProcessID);

    public const short INVALID_HANDLE_VALUE = -1;

    [Flags]
    public enum SnapshotFlags : uint
    {
        HeapList = 0x00000001,
        Process = 0x00000002,
        Thread = 0x00000004,
        Module = 0x00000008,
        Module32 = 0x00000010,
        Inherit = 0x80000000,
        All = 0x0000001F
    }

    [StructLayoutAttribute(LayoutKind.Sequential)]
    public struct PROCESSENTRY32
    {
        public uint dwSize;
        public uint cntUsage;
        public uint th32ProcessID;
        public IntPtr th32DefaultHeapID;
        public uint th32ModuleID;
        public uint cntThreads;
        public uint th32ParentProcessID;
        public int pcPriClassBase;
        public uint dwFlags;
        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 260)]
        public string szExeFile;
    };

    [StructLayoutAttribute(LayoutKind.Sequential)]
    public struct MODULEENTRY32
    {
        public uint dwSize;
        public uint th32ModuleID;
        public uint th32ProcessID;
        public uint GlblcntUsage;
        public uint ProccntUsage;
        IntPtr modBaseAddr;
        public uint modBaseSize;
        IntPtr hModule;
        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 256)]
        public string szModule;
        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 260)]
        public string szExePath;
    };
}

一些代码基于Jason Zander撰写的文章,可以在这里找到.