NtOpenKey - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers
#ifndef _NTREGAPI_H

/**
 * Opens an existing registry key.
 * 
 * @param[out] KeyHandle A pointer to a handle that receives the key handle.
 * @param[in] DesiredAccess The access mask that specifies the desired access rights.
 * @param[in] ObjectAttributes A pointer to an OBJECT_ATTRIBUTES structure that specifies the object attributes.
 * @return NTSTATUS Successful or errant status.
 * @remarks NtOpenKey ignores the security information in the ObjectAttributes structure.
 */
NTSYSCALLAPI
NTSTATUS
NTAPI
NtOpenKey(
    _Out_ PHANDLE KeyHandle,
    _In_ ACCESS_MASK DesiredAccess,
    _In_ POBJECT_ATTRIBUTES ObjectAttributes
    );

#endif

View code on GitHub
#ifndef _NTZWAPI_H

NTSYSCALLAPI
NTSTATUS
NTAPI
ZwOpenKey(
    _Out_ PHANDLE KeyHandle,
    _In_ ACCESS_MASK DesiredAccess,
    _In_ POBJECT_ATTRIBUTES ObjectAttributes
    );

#endif

View code on GitHub

This function is documented in Windows Driver Kit.


See ZwOpenKey in NT DDK or 2000 DDK for detailed description.

See also