Object variable not set

[emyztik]

Public Type sockaddr_in
    sin_family       As Integer
    sin_port         As Integer
    sin_addr         As Long
    sin_zero(1 To 8) As Byte
End Type
 
Dim addr As sockaddr_in
Dim ip As String
[b]ip = inet_ntoa(addr.sin_addr)[/b]

It errors "Object variable or With block variable not set" on the bold line. I researched this on MSDN and it says I have to "Dim something As Object" and "Set someting = ????" for it to work. What must I be doing?

MSDN article = http://msdn.microsoft.com/library/de...gobjnotset.asp