public static extern IntPtr SmcOpenConnection(
[MarshalAs(UnmanagedType.LPStr)] string?networkId,
IntPtr content,
int xsmpMajorRev,
int xsmpMinorRev,
nuint mask,
ref SmcCallbacks callbacks,
[MarshalAs(UnmanagedType.LPStr)] string?previousId,
ref IntPtr clientIdRet,
int errorLength,
[Out] byte[] errorStringRet
);
public static extern IntPtr SmcOpenConnection(
[MarshalAs(UnmanagedType.LPWStr)] string networkId,
IntPtr content,
int xsmpMajorRev,
int xsmpMinorRev,
ulong mask,
ref SmcCallbacks callbacks,
[MarshalAs(UnmanagedType.LPWStr)][Out]
out string previousId,
[MarshalAs(UnmanagedType.LPWStr)][Out]
out string clientIdRet,
int errorLength,
[Out] char[] errorStringRet);
