For detail, see the MSDN.

— HKEY_*

Predefined key ((*handle*)).
These are Integer, not Win32::Registry.

— REG_*

Registry value type.

— KEY_*

Security access mask.

— KEY_OPTIONS_*

Key options.

REG_CREATED_NEW_KEY

REG_OPENED_EXISTING_KEY

If the key is created newly or opened existing key.
See also Registry#disposition method.

For detail, see the MSDN.

— HKEY_*

Predefined key ((*handle*)).
These are Integer, not Win32::Registry.

— REG_*

Registry value type.

— KEY_*

Security access mask.

— KEY_OPTIONS_*

Key options.

REG_CREATED_NEW_KEY

REG_OPENED_EXISTING_KEY

If the key is created newly or opened existing key.
See also Registry#disposition method.
Constants
HKEY_CLASSES_ROOT = 0x80000000
 
HKEY_CURRENT_USER = 0x80000001
 
HKEY_LOCAL_MACHINE = 0x80000002
 
HKEY_USERS = 0x80000003
 
HKEY_PERFORMANCE_DATA = 0x80000004
 
HKEY_PERFORMANCE_TEXT = 0x80000050
 
HKEY_PERFORMANCE_NLSTEXT = 0x80000060
 
HKEY_CURRENT_CONFIG = 0x80000005
 
HKEY_DYN_DATA = 0x80000006
 
REG_NONE = 0
 
REG_SZ = 1
 
REG_EXPAND_SZ = 2
 
REG_BINARY = 3
 
REG_DWORD = 4
 
REG_DWORD_LITTLE_ENDIAN = 4
 
REG_DWORD_BIG_ENDIAN = 5
 
REG_LINK = 6
 
REG_MULTI_SZ = 7
 
REG_RESOURCE_LIST = 8
 
REG_FULL_RESOURCE_DESCRIPTOR = 9
 
REG_RESOURCE_REQUIREMENTS_LIST = 10
 
REG_QWORD = 11
 
REG_QWORD_LITTLE_ENDIAN = 11
 
STANDARD_RIGHTS_READ = 0x00020000
 
STANDARD_RIGHTS_WRITE = 0x00020000
 
KEY_QUERY_VALUE = 0x0001
 
KEY_SET_VALUE = 0x0002
 
KEY_CREATE_SUB_KEY = 0x0004
 
KEY_ENUMERATE_SUB_KEYS = 0x0008
 
KEY_NOTIFY = 0x0010
 
KEY_CREATE_LINK = 0x0020
 
KEY_READ = STANDARD_RIGHTS_READ | KEY_QUERY_VALUE | KEY_ENUMERATE_SUB_KEYS | KEY_NOTIFY
 
KEY_WRITE = STANDARD_RIGHTS_WRITE | KEY_SET_VALUE | KEY_CREATE_SUB_KEY
 
KEY_EXECUTE = KEY_READ
 
KEY_ALL_ACCESS = KEY_READ | KEY_WRITE | KEY_CREATE_LINK
 
REG_OPTION_RESERVED = 0x0000
 
REG_OPTION_NON_VOLATILE = 0x0000
 
REG_OPTION_VOLATILE = 0x0001
 
REG_OPTION_CREATE_LINK = 0x0002
 
REG_OPTION_BACKUP_RESTORE = 0x0004
 
REG_OPTION_OPEN_LINK = 0x0008
 
REG_LEGAL_OPTION = REG_OPTION_RESERVED | REG_OPTION_NON_VOLATILE | REG_OPTION_CREATE_LINK | REG_OPTION_BACKUP_RESTORE | REG_OPTION_OPEN_LINK
 
REG_CREATED_NEW_KEY = 1
 
REG_OPENED_EXISTING_KEY = 2
 
REG_WHOLE_HIVE_VOLATILE = 0x0001
 
REG_REFRESH_HIVE = 0x0002
 
REG_NO_LAZY_FLUSH = 0x0004
 
REG_FORCE_RESTORE = 0x0008
 
MAX_KEY_LENGTH = 514
 
MAX_VALUE_LENGTH = 32768