API -> RegOpenKeyEx [ Library : advapi32.dll, Category : Security ] [C#, VB, VB.net]

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RegOpenKeyEx

Library : advapi32.dll Category : Security

Api Example(s)
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EnumRegistryValuesEx - Get all values under a registry key, with related data and type
GetRegistryValue - Read the value of a Registry key
SetRegistryValue - Write a value in the Registry
GetUNCName - Convert a file path to a UNC path
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Handling NTFS Permissions Part-4 (handling registry key permissions)
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API Description :

The RegOpenKeyEx function opens the specified key.

VB Declaration :

Show Multiline Public Private

Declare Function RegOpenKeyEx Lib "advapi32" Alias "RegOpenKeyExA" (ByVaL hKey As Long, ByVaL lpSubKey As String, ByVaL ulOptions As Long, ByVaL samDesired As Long, phkResult As Long) As Long

Parameters :

· 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

· lpSubKey
Points to a null-terminated string containing the name of the subkey to

Return :

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 descri

OS Requirement :

Requires Windows NT 3.1 or later
Requires Windows 95 or later

Dotnet Replacement :

Microsoft.Win32.RegistryKey.OpenSubKey

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