#ifndef _NTREGAPI_H
/**
* The KEY_NODE_INFORMATION structure defines the basic information available for a registry (sub)key.
* \sa https://learn.microsoft.com/en-us/windows-hardware/drivers/ddi/wdm/ns-wdm-_key_node_information
*/
typedef struct _KEY_NODE_INFORMATION
{
LARGE_INTEGER LastWriteTime; // Number of 100-nanosecond intervals since this key or any of its values changed.
ULONG TitleIndex; // Reserved // A legacy field originally intended for use with localization such as an index of a resource table.
ULONG ClassOffset; // The byte offset from the start of this structure to the class name string. This string is not null-terminated.
ULONG ClassLength; // The size, in bytes, in the class name string.
ULONG NameLength; // The size, in bytes, of the key name string contained in the Name array.
_Field_size_bytes_(NameLength) WCHAR Name[1]; // The name of the registry key. This string is not null-terminated.
// ...
// WCHAR Class[1];
} KEY_NODE_INFORMATION, *PKEY_NODE_INFORMATION;
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This structure is documented in Windows Driver Kit.