Question

I m trying to use iphlpapi (GetAdapterInfo) and am having trouble compiling the code. I have iphlpapi.h from SDK 7 and have added the appropriate path to the include files in visual studio.

I get the following error...

c:program filesmicrosoft sdkswindowsv7.0includeifdef.h(154) : error C2146: syntax error : missing ; before identifier NET_IFTYPE

The lines in ifdef where this occurs are shown below.

typedef NET_LUID IF_LUID, *PIF_LUID;
typedef ULONG NET_IFINDEX, *PNET_IFINDEX;       // Interface Index (ifIndex)
typedef UINT16 NET_IFTYPE, *PNET_IFTYPE;        // Interface Type (IANA ifType)

Answer 1

I finally figured out how to get this to work so I m putting this here for others who might stumble upon it.

First, I m using visual c++ version 6.0 with the 2003 sdk. I added the sdk as the first choice using TOOLS->OPTIONS->DIRECTORIES. Adding the include winsock2.h caused about 60 redefinition errors. I found several sources telling me that the winsock2 include had to precede the windows.h include. My windows.h include was generated for me by VC++ in the precompiled header stdafx.h so I moved the winsock2.h include there. I now can compile and run my program!

Answer 2

According to this page, it looks as though you might need to make sure winsock2.h is included first. I m guessing that it defines some of those types.

Also, the MSDN page for NET_LUID says it requires Vista at a minimum. Make sure that s true.

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