REG_SET_VALUE_EX Routine

Sets value and type information for a specified open registry key. Usage

Call "REG_SET_VALUE_EX"
    USING OPEN-KEY-HANDLE,
      DATA-TYPE,
      VALUE-DATA,
      DATA-SIZE,
    GIVING STATUS-CODE

or:

Call "REG_SET_VALUE_EX"
    USING OPEN-KEY-HANDLE,
      DATA-TYPE,
      VALUE-DATA,
      DATA-SIZE,
      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

DATA-TYPE Usage unsigned-long

Specifies the type code for the value entry. The type code can be one of the following values (defined in acugui.def):

Value
Meaning
REG_BINARY
Binary data in any form.
REG_DWORD
A 32-bit number.
REG_DWORD_LITTLE_ENDIAN
A 32-bit number in little-endian format (same as REG_DWORD). In little-endian format, the most significant byte of a word is the high-order word. This is the most common format for computers running Windows and Windows NT.
REG_DWORD_BIG_ENDIAN
A 32-bit number in big-endian format. In big-endian format, the most significant byte of a word is the low-order word.
REG_EXPAND_SZ
A null-terminated string that contains unexpanded references to environment variables (for example, "%PATH%"). It will be a Unicode or ANSI string depending on whether you use the Unicode or ANSI functions.
REG_LINK
A Unicode symbolic link.
REG_MULTI_SZ
An array of null-terminated strings, terminated by two null characters.
REG_NONE
No defined value type.
REG_RESOURCE_LIST
A device-driver resource list.
REG_SZ
A null-terminated string. It will be a Unicode or ANSI string, depending on whether you use the Unicode or ANSI functions.

VALUE-DATA Variable parameter

Buffer to set the data for the value entry. If you know what type of data is being returned, you may specify this parameter accordingly. If the type of data returned is unknown, you may specify a group item structured as follows:

01 VALUE-DATA
   02 VALUE-DATA-ORIG PIC X (n).
   02 VALUE-BINARY redefines VALUE-DATA-ORIG PIC X (n).
   02 VALUE-DWORD redefines VALUE-DATA-ORIG Usage signed-long.
   02 VALUE-LIT-ENDIAN redefines VALUE-DATA-ORIG Usage signed-long.
   02 VALUE-BIG-ENDIAN redefines VALUE-DATA-ORIG S9 (9) COMP-4.
   02 VALUE-EXPAND-SZ redefines VALUE-DATA-ORIG PIC X (n).
   02 VALUE-LINK redefines VALUE-DATA-ORIG PIC X (n).
   02 VALUE-MULTI-SZ redefines VALUE-DATA-ORIG PIC X (n).
   02 VALUE-NONE redefines VALUE-DATA-ORIG PIC X (n).
   02 VALUE-RESOURCE-LIST redefines VALUE-DATA-ORIG PIC X (n).
   02 VALUE-SZ redefines VALUE-DATA-ORIG PIC X (n).

DATA-SIZE Usage unsigned-long

Specifies the size, in bytes, of the information in the VALUE-DATA buffer. If the data is of type REG_SZ, REG_EXPAND_SZ, or REG_MULTI_SZ, DATA-SIZE must include the size of the terminating null character.

VALUE-NAME PIC X(n)

Name of the value to set. If a value with this name is not already present in the key, the function adds it to the key.

STATUS-CODE Numeric data item.

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

Comments

Value lengths are limited by available memory. Long values (more than 2048 bytes) should be stored as files with the filenames stored in the registry. This helps the registry perform efficiently. Application elements such as icons, bitmaps, and executable files should be stored as files and not be placed in the registry.

The key identified by the OPEN-KEY-HANDLE parameter must have been opened with KEY_SET_VALUE access.

Value	Meaning
REG_BINARY	Binary data in any form.
REG_DWORD	A 32-bit number.
REG_DWORD_LITTLE_ENDIAN	A 32-bit number in little-endian format (same as REG_DWORD). In little-endian format, the most significant byte of a word is the high-order word. This is the most common format for computers running Windows and Windows NT.
REG_DWORD_BIG_ENDIAN	A 32-bit number in big-endian format. In big-endian format, the most significant byte of a word is the low-order word.
REG_EXPAND_SZ	A null-terminated string that contains unexpanded references to environment variables (for example, "%PATH%"). It will be a Unicode or ANSI string depending on whether you use the Unicode or ANSI functions.
REG_LINK	A Unicode symbolic link.
REG_MULTI_SZ	An array of null-terminated strings, terminated by two null characters.
REG_NONE	No defined value type.
REG_RESOURCE_LIST	A device-driver resource list.
REG_SZ	A null-terminated string. It will be a Unicode or ANSI string, depending on whether you use the Unicode or ANSI functions.