ClusterRegCreateKey function (clusapi.h)

Article
10/13/2021

Creates a specified cluster database key. If the key already exists in the database, ClusterRegCreateKey opens it without making changes.

Syntax

LONG ClusterRegCreateKey(
  [in]            HKEY                  hKey,
  [in]            LPCWSTR               lpszSubKey,
  [in]            DWORD                 dwOptions,
  [in]            REGSAM                samDesired,
  [in, optional]  LPSECURITY_ATTRIBUTES lpSecurityAttributes,
  [out]           PHKEY                 phkResult,
  [out, optional] LPDWORD               lpdwDisposition
);

Parameters

[in] hKey

Handle to an open cluster database key. This parameter cannot be NULL.

[in] lpszSubKey

Pointer to a null-terminated Unicode string specifying the name of the subkey to be created or opened. The lpszSubKey parameter must point to a subkey that:

Is a child key of the key identified by hKey.
Must not begin with the backslash character ( \ ).
Must not be NULL.

The lpszSubKey parameter can point to an empty string, causing ClusterRegCreateKey to return a handle to the database key represented by hKey.

[in] dwOptions

Specifies special options for this key. Currently, dwOptions can be set to the following value.

REG_OPTION_NON_VOLATILE (0x00000000)

The opened or created key is not volatile; the information is preserved when the system is restarted.

[in] samDesired

Access mask that specifies the needed security access for the new key. The following values are valid.

For more information, see Registry Key Security and Access Rights.

ACCESS_SYSTEM_SECURITY (0x01000000)

Permission to access system security. It is used to indicate access to a system access control list (SACL). This type of access requires the calling process to have the SE_SECURITY_NAME (Manage auditing and security log) privilege.

DELETE (0x00010000)

Permission to delete.

KEY_ALL_ACCESS (0x000F003F)

Combination of KEY_QUERY_VALUE, KEY_ENUMERATE_SUB_KEYS, KEY_NOTIFY, KEY_CREATE_SUB_KEY, KEY_CREATE_LINK, and KEY_SET_VALUE access.

KEY_CREATE_LINK (0x00000020)

Permission to create a symbolic link.

KEY_ENUMERATE_SUB_KEYS (0x00000008)

Permission to enumerate subkeys.

KEY_EXECUTE (0x00020019)

Permission for read access.

KEY_NOTIFY (0x00000010)

Permission for change notification.

KEY_QUERY_VALUE (0x00000001)

Permission to query subkey data.

KEY_READ (0x00020019)

Combination of KEY_QUERY_VALUE, KEY_ENUMERATE_SUB_KEYS, and KEY_NOTIFY access.

KEY_SET_VALUE (0x00000002)

Permission to change subkey data.

KEY_WRITE (0x00020006)

Combination of KEY_SET_VALUE and KEY_CREATE_SUB_KEY access.

READ_CONTROL (0x00020000)

Permission to read the owner, group, and discretionary access control list (DACL) of the security descriptor.

WRITE_DAC (0x00040000)

Permission to write to the DACL.

WRITE_OWNER (0x00080000)

Permission to change the owner.

[in, optional] lpSecurityAttributes

This parameter is ignored. To set the security attributes on a new registry key, call the ClusterRegSetKeySecurity function after ClusterRegCreateKey has returned successfully.

[out] phkResult

Pointer to the handle of the opened or created key.

[out, optional] lpdwDisposition

Pointer to a value that describes whether the key pointed to by lpszSubKey was opened or created. The following values are valid.

REG_CREATED_NEW_KEY (0x00000001)

The key did not exist and was created.

REG_OPENED_EXISTING_KEY (0x00000002)

The key existed and was opened.

Return value

If the operation succeeds, the function returns ERROR_SUCCESS.

If the operation fails, the function returns a system error code.

Remarks

Callers should call ClusterRegCloseKey to close the key handle created by the ClusterRegCreateKey function when they are done with it.

Do not call ClusterRegCreateKey from the following resource DLL entry point functions:

ClusterRegCreateKey can be safely called from any other resource DLL entry point function or from a worker thread. For more information, see Function Calls to Avoid in Resource DLLs.

Requirements

Requirement	Value
Minimum supported client	None supported
Minimum supported server	Windows Server 2008 Enterprise, Windows Server 2008 Datacenter
Target Platform	Windows
Header	clusapi.h
Library	ClusAPI.lib
DLL	ClusAPI.dll

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