public static string getObjectTypeName(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;
var objObjectType = new MutexCloseHelper.OBJECT_TYPE_INFORMATION();
IntPtr ipObjectType = IntPtr.Zero;
IntPtr ipObjectName = IntPtr.Zero;
string strObjectTypeName = "";
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);
ipObjectType = Marshal.AllocHGlobal(objBasic.TypeInformationLength);
nLength = objBasic.TypeInformationLength;
while ((uint)(nReturn = MutexCloseHelper.NtQueryObject(ipHandle, (int)MutexCloseHelper.ObjectInformationClass.ObjectTypeInformation, ipObjectType, nLength, ref nLength)) == MutexCloseHelper.STATUS_INFO_LENGTH_MISMATCH)
{
Marshal.FreeHGlobal(ipObjectType);
ipObjectType = Marshal.AllocHGlobal(nLength);
}
//Win32API.CloseHandle(ipHandle);
objObjectType = (MutexCloseHelper.OBJECT_TYPE_INFORMATION)Marshal.PtrToStructure(ipObjectType, objObjectType.GetType());
if (Is64Bits())
{
ipTemp = new IntPtr(Convert.ToInt64(objObjectType.Name.Buffer.ToString(), 10) >> 32);
}
else
{
ipTemp = objObjectType.Name.Buffer;
}
strObjectTypeName = Marshal.PtrToStringUni(ipTemp, objObjectType.Name.Length >> 1);
Marshal.FreeHGlobal(ipObjectType);
return(strObjectTypeName);
}
public static string getObjectTypeName(MutexCloseHelper.SYSTEM_HANDLE_INFORMATION shHandle, Process process, out IntPtr ipHandle)
{
IntPtr m_ipProcessHwnd = MutexCloseHelper.OpenProcess(MutexCloseHelper.ProcessAccessFlags.All, false, process.Id);
ipHandle = IntPtr.Zero;
var objBasic = new MutexCloseHelper.OBJECT_BASIC_INFORMATION();
IntPtr ipBasic = IntPtr.Zero;
var objObjectType = new MutexCloseHelper.OBJECT_TYPE_INFORMATION();
IntPtr ipObjectType = IntPtr.Zero;
IntPtr ipObjectName = IntPtr.Zero;
string strObjectTypeName = "";
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);
ipObjectType = Marshal.AllocHGlobal(objBasic.TypeInformationLength);
nLength = objBasic.TypeInformationLength;
while ((uint)(nReturn = MutexCloseHelper.NtQueryObject(ipHandle, (int)MutexCloseHelper.ObjectInformationClass.ObjectTypeInformation, ipObjectType, nLength, ref nLength)) == MutexCloseHelper.STATUS_INFO_LENGTH_MISMATCH)
{
Marshal.FreeHGlobal(ipObjectType);
ipObjectType = Marshal.AllocHGlobal(nLength);
}
//Win32API.CloseHandle(ipHandle);
objObjectType = (MutexCloseHelper.OBJECT_TYPE_INFORMATION)Marshal.PtrToStructure(ipObjectType, objObjectType.GetType());
if (Is64Bits())
{
ipTemp = new IntPtr(Convert.ToInt64(objObjectType.Name.Buffer.ToString(), 10) >> 32);
}
else
{
ipTemp = objObjectType.Name.Buffer;
}
strObjectTypeName = Marshal.PtrToStringUni(ipTemp, objObjectType.Name.Length >> 1);
Marshal.FreeHGlobal(ipObjectType);
return strObjectTypeName;
}
