C# Signature:

[DllImport("advapi32.dll", SetLastError=true)]
static extern int RegQueryValueEx(
    IntPtr hKey,
    string lpValueName,
    int lpReserved,
    out uint lpType,
    IntPtr lpData,
    ref uint lpcbData);

VB Signature:

Declare Function RegQueryValueEx Lib "advapi32.dll" (ByRef hKey As Integer, _
    lpValueName As String, _
    lpReserved As Integer, _
    lpType As Integer, _
    ByRef lpData As Integer, _
    lpcbData As Integer) As Integer

Key Types:

User-Defined Types:

None.

Notes:

Managed APIs won't let you get raw REG_EXPAND_SZ values. You'll be forced to use Win32 APIs for this. Also, since .NET won'T give access to the key pointer, you'll have to browse the registry using pInvoke.

Tips & Tricks:

None.

Sample Code:

None.

Alternative Managed API:

namespace Microsoft.Win32;

classes Registery, RegistryKey

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