@msdn=http://search.microsoft.com/search/results.aspx?qu=$$$ @pinvoke=http://pinvoke.net/$$$.htm Summary: This structure contains information about a particular network adapter on the local computer. !!!!C# Definition: [StructLayout(LayoutKind.Sequential, CharSet=CharSet.Ansi)] public struct IP_ADAPTER_INFO { public IntPtr Next; public Int32 ComboIndex; [MarshalAs(UnmanagedType.ByValTStr, SizeConst=MAX_ADAPTER_NAME_LENGTH + 4)] public string AdapterName; [MarshalAs(UnmanagedType.ByValTStr, SizeConst=MAX_ADAPTER_DESCRIPTION_LENGTH + 4)] public string AdapterDescription; public UInt32 AddressLength; [MarshalAs(UnmanagedType.ByValArray, SizeConst=MAX_ADAPTER_ADDRESS_LENGTH)] public byte [] Address; public Int32 Index; public UInt32 Type; public UInt32 DhcpEnabled; public IntPtr CurrentIpAddress; public IP_ADDR_STRING IpAddressList; public IP_ADDR_STRING GatewayList; public IP_ADDR_STRING DhcpServer; public bool HaveWins; public IP_ADDR_STRING PrimaryWinsServer; public IP_ADDR_STRING SecondaryWinsServer; public Int32 LeaseObtained; public Int32 LeaseExpires; } !!!!VB Definition: <StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Ansi)> _ Public Class IP_ADAPTER_INFO Public [Next] As IntPtr Public ComboIndex As Int32 <MarshalAs(UnmanagedType.ByValTStr, SizeConst:=(MAX_ADAPTER_NAME_LENGTH + 4))> _ Public AdapterName As String <MarshalAs(UnmanagedType.ByValTStr, SizeConst:=(MAX_ADAPTER_DESCRIPTION_LENGTH + 4))> _ Public AdapterDescription As String Public AddressLength As Int32 <MarshalAs(UnmanagedType.ByValArray, SizeConst:=(MAX_ADAPTER_ADDRESS_LENGTH))> _ Public Address() As Byte Public Index As Int32 Public Type As Int32 Public DhcpEnabled As Int32 Public CurrentIpAddress As Int32 Public IpAddressList As IP_ADDR_STRING Public GatewayList As IP_ADDR_STRING Public DhcpServer As IP_ADDR_STRING Public HaveWins As Int32 Public PrimaryWinsServer As IP_ADDR_STRING Public SecondaryWinsServer As IP_ADDR_STRING Public LeaseObtained As Int32 Public LeaseExpires As Int32 End Class !!!!User-Defined Field Types: [IP_ADDR_STRING] (in IP Helper API constants IPHlpApi.h) MAX_ADAPTER_ADDRESS_LENGTH, MAX_ADAPTER_DESCRIPTION_LENGTH, MAX_ADAPTER_NAME_LENGTH (in IPTypes.h) !!!!Notes: Failed on ""CharSet"":=CharSet.Auto on WinXP: -> ""CharSet"":=CharSet.ANSI worked MAX_ADAPTER_ADDRESS_LENGTH = 8 MAX_ADAPTER_DESCRIPTION_LENGTH = 128 MAX_ADAPTER_NAME_LENGTH = 256 Documentation: IP_ADAPTER_INFO@msdn on MSDN
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