RegSetValueEx

RegSetValueEx sets the data for the specified value in the specified registry key.

Syntax

Copy

LONG RegSetValueEx(
    HKEY           hKey,
    LPCTSTR        lpValueName,
    DWORD          Reserved, 
    DWORD          dwType, 
    const BYTE     *lpData, 
    DWORD          cbData 
  );

Parameters

hKey

A handle that can only be one of the following predefined keys:

HKEY_LOCAL_MACHINE

HKEY_USERS

lpValueName

The name of the value to be set. This parameter must not be NULL.

Reserved

This parameter is reserved and must be zero.

dwType

Type of data pointed by the lpData parameter.

lpData

Data to be stored with the specified value name. For string-based types, such as REG_SZ, the string must be null-terminated. This parameter can only be NULL if cbData is 0.

cbData

Size of the information pointed to by the lpData parameter, in bytes. If the data type is of type REG_SZ, cbData must include the size of the terminating null character or characters.

Return Value

If the function succeeds, the return value is ERROR_SUCCESS. If the function fails, the return value is a nonzero error code.

Requirements

Minimum supported version	Header	Library
eRTOS 1.0 SDK	windows.h	rtkrnl.lib