C# Signature:

[DllImport("advapi32.dll", SetLastError=true)]
static extern bool InitializeSecurityDescriptor(IntPtr pSecurityDescriptor, uint dwRevision);

VB.net Signature:

<DllImport("advapi32.dll", SetLastError:=True)> _
Private Shared Function InitializeSecurityDescriptor(pSecurityDescriptor As IntPtr, dwRevision As UInteger) As Boolean
End Function

User-Defined Types:

SECURITY_DESCRIPTOR

const uint SECURITY_DESCRIPTOR_REVISION = 1;

Notes:

The dwRevision parameter must be SECURITY_DESCRIPTOR_REVISION.

Tips & Tricks:

Please add some!

Sample Code:

C#

SECURITY_DESCRIPTOR sd = new SECURITY_DESCRIPTOR();

IntPtr ptr = Marshal.AllocCoTaskMem (Marshal.SizeOf (sd));

Marshal.StructureToPtr (sd, ptr, false);

InitializeSecurityDescriptor(ptr, 1);

Alternative Managed API:

Do you know one? Please contribute it!