| NtOpenEvent(IntPtr, EventAccessRights, ObjectAttributes) | Opens a handle to an existing named event object with the specified desired access. |
| NtOpenEvent(IntPtr, GenericAccessRights, ObjectAttributes) | Opens a handle to an existing named event object with the specified desired access. |
| NtOpenEvent(IntPtr, StandardAccessRights, ObjectAttributes) | Opens a handle to an existing named event object with the specified desired access. |
| NtOpenEvent(IntPtr, UInt32, ObjectAttributes) | Opens a handle to an existing named event object with the specified desired access. |