REG_DELETE_KEY, DISPLAY_REG_DELETE_KEY

Deletes a specified registry key by providing access to the Windows registry routine RegDeleteKey. When a key is deleted, its value and all of its subkeys are also deleted.

Note: On Windows NT systems only, this routine cannot be used to delete keys that have subkeys.

Use DISPLAY_REG_DELETE_KEY when you want the action to be performed on the display host's registry (the local host when the application is run with a standard runtime; the thin client when the application is run with the thin client). Use REG_DELETE_KEY when you want the action to be performed on the server host's registry (the local host when the application is run with a standard runtime, and the application host when the application is run with the thin client).

Usage

 CALL "REG_DELETE_KEY" 
     USING OPEN-KEY-HANDLE, SUBKEY-TO-BE-DELETED,
     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

The key deleted by REG_DELETE_KEY is a subkey of the key identified by OPEN-KEY-HANDLE.

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

Name of the key to delete. Must be a subkey of the key identified by OPEN-KEY-HANDLE. If SUBKEY-TO-BE-DELETED is set to NULL or to a string consisting of all spaces, the routine does nothing and returns with STATUS-CODE set to 13.

STATUS-CODE Numeric data item.

Receives the return status of the call to Microsoft's RegDeleteKey function. A return status of zero indicates success; non-zero indicates that an error occurred. On 32-bit Windows systems, a return status of 5 indicates that either the application does not have delete privileges for the specified key, or another application has the key opened.