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RegCreateKey

The RegCreateKey function creates the specified key. If the key already exists in the registry, the function opens it. This function is provided for compatibility with Windows version 3.1. Win32-based applications should use the RegCreateKeyEx function.

VB4-32,5,6
Declare Function RegCreateKey Lib "advapi32.dll" Alias "RegCreateKeyA" (ByVal hKey As Long, ByVal lpSubKey As String, phkResult As Long) As Long

VB.NET
Microsoft.Win32.RegistryKey.CreateSubKey

Operating Systems Supported
Requires Windows NT 3.1 or later; Requires Windows 95 or later

Library
Advapi32

Parameter Information
hKey
Identifies a currently open key or any of the following predefined reserved handle values:
HKEY_CLASSES_ROOT
HKEY_CURRENT_USER
HKEY_LOCAL_MACHINE
HKEY_USERS
The key opened or created by this function is a subkey of the key identified by hKey.

lpSubKey
Points to a null-terminated string specifying the name of a key that this function opens or creates. This key must be a subkey of the key identified by the hKey parameter.
If hKey is one of the predefined keys, lpSubKey may be NULL. In that case, the handle returned by using phkResult is the same hKey handle passed in to the function.

phkResult
Points to a variable that receives the handle of the opened or created key.

Return Values
If the function succeeds, the return value is ERROR_SUCCESS.

If the function fails, the return value is a nonzero error code defined in WINERROR.H. You can use the FormatMessage function with the FORMAT_MESSAGE_FROM_SYSTEM flag to get a generic description of the error.

Examples

Related Functions

VB.NET Example

 

 


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