[原创]C#列出系统中所有运行的程序

最新推荐文章于 2025-12-03 22:26:14 发布

原创最新推荐文章于 2025-12-03 22:26:14 发布 · 置顶 · 591 阅读

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CC 4.0 BY-SA版权

文章标签：

#c# #button #struct #object #string #class

本文介绍了一个使用C#编写的简单应用程序，该程序能够枚举当前系统中运行的所有进程并显示其名称，同时提供了终止指定进程的功能。通过调用Windows API函数实现进程快照的创建、遍历及关闭。

效果预览

完整代码如下：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Diagnostics;
using System.Reflection;
using System.Runtime;
using System.Runtime.InteropServices;

namespace Test
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        [StructLayout(LayoutKind.Sequential)]
        private 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 = 0x100)]
            public string szExeFile;
        }

[DllImport("Kernel32.dll")]
private static extern int CloseToolhelp32Snapshot(IntPtr snaph);

[DllImport("Kernel32.dll")]
private static extern int CloseHandle(IntPtr hObject);

[DllImport("Kernel32.dll")]
private static extern IntPtr CreateToolhelp32Snapshot(uint dwFlags, uint th32ProcessID);

[DllImport("Kernel32.dll")]
private static extern int Process32First(int snaph, ref PROCESSENTRY32 lppe);

[DllImport("Kernel32.dll")]
private static extern int Process32Next(IntPtr snaph, ref PROCESSENTRY32 lppe);

[DllImport("Kernel32.dll")]
private static extern bool TerminateProcess(IntPtr h, uint c);

        private void button1_Click(object sender, EventArgs e)
        {
            IntPtr snaph = CreateToolhelp32Snapshot(2, 0);
            PROCESSENTRY32 lppe = new PROCESSENTRY32();
            lppe.dwSize = 0x400;
            if (Process32First((int)snaph, ref lppe) == 0)
            {
                CloseToolhelp32Snapshot(snaph);
            }
            while (Process32Next(snaph, ref lppe) != 0)
            {
                this.listBox1.Items.Add(lppe.szExeFile);
            }

        }
    }
}