REG_OPEN_KEY_EX Routine

Opens a specified registry key by accessing the Windows registry routine "RegOpenKeyEx".

Usage

Call "REG_OPEN_KEY_EX"
   USING OPEN-KEY-HANDLE,
        SUBKEY-TO-BE-OPENED,
        SAM-DESIRED,
        SUBKEY-HANDLE,
   GIVING STATUS-CODE

Parameters

OPEN-KEY-HANDLE Usage unsigned-long

Handle of a currently open key or one of the following predefined handles of keys that are always open (defined in acugui.def):

HKEY_CLASSES_ROOT

HKEY_CURRENT_USER

HKEY_LOCAL_MACHINE

HKEY_USERS

SUBKEY-TO-BE-OPENED PIC X(n)

String containing the name of the key to open. This key must be a subkey of the key identified by OPEN-KEY-HANDLE.

SAM-DESIRED Usage unsigned-long

Specifies a security access mask (SAM) that describes the desired security access for the new key. This parameter can be a combination of the following values (defined in acugui.def):

Value	Meaning
KEY_ALL_ACCESS	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	Permission to create a symbolic link.
KEY_CREATE_SUB_KEY	Permission to create subkeys.
KEY_ENUMERATE_SUB_KEYS	Permission to enumerate subkeys.
KEY_EXECUTE	Permission for read access.
KEY_NOTIFY	Permission for change notification.
KEY_QUERY_VALUE	Permission to query subkey data.
KEY_READ	Combination of KEY_QUERY_VALUE, KEY_ENUMERATE_SUB_KEYS, and KEY_NOTIFY access.
KEY_SET_VALUE	Permission to set subkey data.
KEY_WRITE	Combination of KEY_SET_VALUE and KEY_CREATE_SUB_KEY access.

SUBKEY-HANDLE Usage unsigned-long

Data item to receive the handle of the opened key.

STATUS-CODE Numeric data item.

Receives the return status of call to Microsoft's "RegOpenKeyEx" function. A return status of zero indicates success; non-zero indicates that an error occurred.