Geoff Chappell, Software Analyst
The public symbol file NTKRPAMP.PDB for the original release of Windows 10 tells that the kernel is built with the NTOBAPI_X.H header at
and draws from it the following type definitions:
|75||struct _OBJECT_NAME_INFORMATION||line 7216 in WDM.H|
|97||enum _OBJECT_INFORMATION_CLASS||line 12769 in NTIFS.H|
The header NTOBAPI_X.H is not known in any Device Driver Kit (DDK) or Windows Driver Kit (WDK).