Created
June 11, 2020 10:33
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| using System; | |
| using System.Diagnostics; | |
| using System.Runtime.InteropServices; | |
| static class AntiRemove | |
| { | |
| const uint GENERIC_READ = 0x80000000; | |
| const uint DUPLICATE_SAME_ACCESS = 0x00000002; | |
| const uint FILE_SHARE_READ = 1; | |
| const uint OPEN_EXISTING = 3; | |
| public static bool LockFile(string filePath, params string[] processes) | |
| { | |
| IntPtr hCurrentProcess; | |
| using (Process current = Process.GetCurrentProcess()) | |
| { | |
| hCurrentProcess = current.Handle; | |
| } | |
| IntPtr hFile = CreateFile(filePath, GENERIC_READ, FILE_SHARE_READ, IntPtr.Zero, OPEN_EXISTING, 0, IntPtr.Zero); | |
| if (hFile == IntPtr.Zero) | |
| return false; | |
| int count = 0; | |
| foreach (Process p in Process.GetProcesses()) | |
| { | |
| using (p) | |
| { | |
| try | |
| { | |
| if (processes.Length == 0 || Array.IndexOf(processes, p.ProcessName.ToLowerInvariant()) != -1) | |
| { | |
| Console.WriteLine("Locking with " + p); | |
| IntPtr hFileClone; | |
| IntPtr hProcess = p.Handle; | |
| if (!DuplicateHandle(((IntPtr)(-1)), hFile, hProcess, out hFileClone, GENERIC_READ, false, DUPLICATE_SAME_ACCESS)) | |
| { | |
| Marshal.ThrowExceptionForHR(Marshal.GetLastWin32Error()); | |
| } | |
| count++; | |
| } | |
| } | |
| catch | |
| { | |
| Console.WriteLine("Failed locking with " + p); | |
| } | |
| } | |
| } | |
| CloseHandle(hFile); | |
| return count > 0; | |
| } | |
| [DllImport("kernel32", SetLastError = true)] | |
| static extern bool CloseHandle(IntPtr hObject); | |
| [DllImport("kernel32", SetLastError = true)] | |
| static extern bool DuplicateHandle(IntPtr hSourceProcessHandle, IntPtr hSourceHandle, IntPtr hTargetProcessHandle, out IntPtr lpTargetHandle, uint dwDesiredAccess, bool bInheritHandle, uint dwOptions); | |
| [DllImport("kernel32", SetLastError = true)] | |
| static extern IntPtr CreateFile(string lpFileName, uint dwDesiredAccess, | |
| uint dwShareMode, IntPtr lpSecurityAttributes, uint dwCreationDisposition, | |
| uint dwFlagsAndAttributes, IntPtr hTemplateFile); | |
| } |
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How to unlock method when i locked this file.