public static List <MutexCloseHelper.SYSTEM_HANDLE_INFORMATION> GetHandles(Process process = null, string IN_strObjectTypeName = null, string IN_strObjectName = null) { uint nStatus; int nHandleInfoSize = 0x10000; IntPtr ipHandlePointer = Marshal.AllocHGlobal(nHandleInfoSize); int nLength = 0; IntPtr ipHandle = IntPtr.Zero; while ((nStatus = MutexCloseHelper.NtQuerySystemInformation(CNST_SYSTEM_HANDLE_INFORMATION, ipHandlePointer, nHandleInfoSize, ref nLength)) == STATUS_INFO_LENGTH_MISMATCH) { nHandleInfoSize = nLength; Marshal.FreeHGlobal(ipHandlePointer); ipHandlePointer = Marshal.AllocHGlobal(nLength); } byte[] baTemp = new byte[nLength]; Marshal.Copy(ipHandlePointer, baTemp, 0, nLength); long lHandleCount = 0; if (Is64Bits()) { lHandleCount = Marshal.ReadInt64(ipHandlePointer); ipHandle = new IntPtr(ipHandlePointer.ToInt64() + 8); } else { lHandleCount = Marshal.ReadInt32(ipHandlePointer); ipHandle = new IntPtr(ipHandlePointer.ToInt32() + 4); } MutexCloseHelper.SYSTEM_HANDLE_INFORMATION shHandle; List <MutexCloseHelper.SYSTEM_HANDLE_INFORMATION> lstHandles = new List <MutexCloseHelper.SYSTEM_HANDLE_INFORMATION>(); IntPtr newHandle = IntPtr.Zero; for (long lIndex = 0; lIndex < lHandleCount; lIndex++) { shHandle = new MutexCloseHelper.SYSTEM_HANDLE_INFORMATION(); if (Is64Bits()) { shHandle = (MutexCloseHelper.SYSTEM_HANDLE_INFORMATION)Marshal.PtrToStructure(ipHandle, shHandle.GetType()); ipHandle = new IntPtr(ipHandle.ToInt64() + Marshal.SizeOf(shHandle) + 8); } else { ipHandle = new IntPtr(ipHandle.ToInt64() + Marshal.SizeOf(shHandle)); shHandle = (MutexCloseHelper.SYSTEM_HANDLE_INFORMATION)Marshal.PtrToStructure(ipHandle, shHandle.GetType()); } if (process != null) { if (shHandle.ProcessID != process.Id) { continue; } } string strObjectTypeName = ""; if (IN_strObjectTypeName != null) { strObjectTypeName = getObjectTypeName(shHandle, Process.GetProcessById(shHandle.ProcessID), out newHandle); try { if (strObjectTypeName != IN_strObjectTypeName) { continue; } else { MutexCloseHelper.CloseHandle(newHandle); } } catch { } } string strObjectName = ""; if (IN_strObjectName != null) { strObjectName = getObjectName(shHandle, Process.GetProcessById(shHandle.ProcessID), out newHandle); try { MutexCloseHelper.CloseHandle(newHandle); } catch (Exception ex) { Debug.WriteLine(ex.Message); } if (strObjectName != IN_strObjectName) { continue; } } //string strObjectTypeName2 = getObjectTypeName(shHandle, Process.GetProcessById(shHandle.ProcessID), out newHandle); //try //{ // Win32API.CloseHandle(newHandle); //} //catch //{ //} //string strObjectName2 = getObjectName(shHandle, Process.GetProcessById(shHandle.ProcessID), out newHandle); //try //{ // Win32API.CloseHandle(newHandle); //} //catch //{ //} //Console.WriteLine("{0} {1} {2}", shHandle.ProcessID, strObjectTypeName2, strObjectName2); lstHandles.Add(shHandle); } return(lstHandles); }
public static string getObjectName(MutexCloseHelper.SYSTEM_HANDLE_INFORMATION shHandle, Process process, out IntPtr ipHandle) { IntPtr m_ipProcessHwnd = MutexCloseHelper.OpenProcess(Win32API.ProcessAccessFlags.All, false, process.Id); ipHandle = IntPtr.Zero; var objBasic = new MutexCloseHelper.OBJECT_BASIC_INFORMATION(); IntPtr ipBasic = IntPtr.Zero; IntPtr ipObjectType = IntPtr.Zero; var objObjectName = new MutexCloseHelper.OBJECT_NAME_INFORMATION(); IntPtr ipObjectName = IntPtr.Zero; string strObjectName = ""; int nLength = 0; int nReturn = 0; IntPtr ipTemp = IntPtr.Zero; if (!MutexCloseHelper.DuplicateHandle(m_ipProcessHwnd, shHandle.Handle, MutexCloseHelper.GetCurrentProcess(), out ipHandle, 0, false, MutexCloseHelper.DUPLICATE_SAME_ACCESS)) { return(null); } ipBasic = Marshal.AllocHGlobal(Marshal.SizeOf(objBasic)); MutexCloseHelper.NtQueryObject(ipHandle, (int)MutexCloseHelper.ObjectInformationClass.ObjectBasicInformation, ipBasic, Marshal.SizeOf(objBasic), ref nLength); objBasic = (MutexCloseHelper.OBJECT_BASIC_INFORMATION)Marshal.PtrToStructure(ipBasic, objBasic.GetType()); Marshal.FreeHGlobal(ipBasic); nLength = objBasic.NameInformationLength; ipObjectName = Marshal.AllocHGlobal(nLength); while ((uint)(nReturn = MutexCloseHelper.NtQueryObject(ipHandle, (int)MutexCloseHelper.ObjectInformationClass.ObjectNameInformation, ipObjectName, nLength, ref nLength)) == MutexCloseHelper.STATUS_INFO_LENGTH_MISMATCH) { Marshal.FreeHGlobal(ipObjectName); ipObjectName = Marshal.AllocHGlobal(nLength); } //Win32API.CloseHandle(ipHandle); objObjectName = (MutexCloseHelper.OBJECT_NAME_INFORMATION)Marshal.PtrToStructure(ipObjectName, objObjectName.GetType()); if (Is64Bits()) { ipTemp = new IntPtr(Convert.ToInt64(objObjectName.Name.Buffer.ToString(), 10) >> 32); } else { ipTemp = objObjectName.Name.Buffer; } if (ipTemp != IntPtr.Zero) { byte[] baTemp2 = new byte[nLength]; try { Marshal.Copy(ipTemp, baTemp2, 0, nLength); strObjectName = Marshal.PtrToStringUni(Is64Bits() ? new IntPtr(ipTemp.ToInt64()) : new IntPtr(ipTemp.ToInt32())); return(strObjectName); } catch (AccessViolationException) { return(null); } finally { Marshal.FreeHGlobal(ipObjectName); MutexCloseHelper.CloseHandle(ipHandle); } } return(null); }