Deletes a named value from a specified registry key. This library routine works with 32-bit Windows only.
Usage
Call "REG_DELETE_KEY_VALUE" USING OPEN-KEY-HANDLE, VALUE-NAME, 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
VALUE-NAME PIC X(n)
Name of the value to delete. If NULL or an empty string, the value set by REG_SET_VALUE will be deleted.
STATUS-CODE Numeric data item
Receives the return status of call to Microsoft's "RegDeleteValue" function. A return status of zero indicates success; non-zero indicates that an error occurred.
Comments
The key identified by OPEN-KEY-HANDLE must have been opened with KEY_SET_VALUE access (KEY_WRITE access includes KEY_SET_VALUE access).