C#如何结束进程及子进程
这篇文章主要讲解了“C#如何结束进程及子进程”,文中的讲解内容简单清晰,易于学习与理解,下面请大家跟着小编的思路慢慢深入,一起来研究和学习“C#如何结束进程及子进程”吧!
代码如下:
static class ProcessExtend { // [StructLayout(LayoutKind.Sequential)] private struct ProcessBasicInformation { public int ExitStatus; public int PebBaseAddress; public int AffinityMask; public int BasePriority; public uint UniqueProcessId; public uint InheritedFromUniqueProcessId; } [DllImport("ntdll.dll")] static extern int NtQueryInformationProcess( IntPtr hProcess, int processInformationClass /* 0 */, ref ProcessBasicInformation processBasicInformation, uint processInformationLength, out uint returnLength ); public static void KillProcessTree(this Process parent) { var processes = Process.GetProcesses(); foreach (var p in processes) { var pbi = new ProcessBasicInformation(); try { uint bytesWritten; if (NtQueryInformationProcess(p.Handle, 0, ref pbi, (uint)Marshal.SizeOf(pbi), out bytesWritten) == 0) // == 0 is OK if (pbi.InheritedFromUniqueProcessId == parent.Id) using (var newParent = Process.GetProcessById((int)pbi.UniqueProcessId)) newParent.KillProcessTree(); } catch { } } parent.Kill(); } }
PS:今天发现NtQueryInformationProcess函数在x64位程序上运行无效, 具体原因不明,Google了一下也没有找到答案,反而找到了另一种解决方案,通过WMI来实现的。在x86和x64下都可以使用。
static void KillProcessAndChildren(int pid) { ManagementObjectSearcher searcher = new ManagementObjectSearcher("Select * From Win32_Process Where ParentProcessID=" + pid); ManagementObjectCollection moc = searcher.Get(); foreach (ManagementObject mo in moc) { KillProcessAndChildren(Convert.ToInt32(mo["ProcessID"])); } try { Process proc = Process.GetProcessById(pid); Console.WriteLine(pid); proc.Kill(); } catch (ArgumentException) { /* process already exited */ } }
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