Win CE GetIpAddrTable() Linker error

Posted on 2003-11-11
Medium Priority
Last Modified: 2007-12-19
Hi People,

I’m currently developing an Application in Embedded Visual C++ using API not MFC, for a pocket PC which is running Windows CE 3.0.

I’m trying to retrieve the Subnet mask from the pocket PCs network card.

I used the function GetIpAddrTable(), which is OK when I compile, but when I try to build the application I get the following LINKER errors

Creating library MIPSRel/MTool.lib and object MIPSRel/MTool.exp
ScanNetwork.obj : error LNK2019: unresolved external symbol GetIpAddrTable referenced in function "int __cdecl scanNetworkNow(struct HWND__ *,char (* const)[512])" (?scanNetworkNow@@YAHPAUHWND__@@QAY0CAA@D@Z)

MIPSRel/MTool.dll : fatal error LNK1120: 1 unresolved externals
Error executing link.exe.

MTool.dll - 2 error(s), 0 warning(s)

I have included the library file iphlpapi.lib in my project setting and have included the iphlpapi.h header file in my source code.

I have listed my source below:

char *  szTotResult;
char data[sizeof(MIB_IPADDRTABLE) + 32 * sizeof(MIB_IPADDRROW)];
ULONG len = sizeof(data);
IN_ADDR  inAddr;
int ind;

// Find all interfaces
if(GetIpAddrTable((PMIB_IPADDRTABLE)data, &len, true ) == NO_ERROR)
             ipAddr = (PMIB_IPADDRTABLE)data;
      for(ind = 0; ind < (int)ipAddr->dwNumEntries; ind++)
            if(ipAddr->table[ind].dwAddr != 0)
                  // combind Addr and Sub net mask
                                      UINT bCast = ipAddr->table [ind].dwAddr  | ~ipAddr-table[ind].dwMask;

            inAddr.S_un.S_addr = bCast;
            szTotResult = inet_ntoa (inAddr);

Can any one help me please ? I have try the same soruce code in Visual C++ and it all works fine.

Question by:LPlate
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
LVL 32

Expert Comment

ID: 9721650
When you say:

"I have included the library file iphlpapi.lib in my project setting"

what EXACTLY does that mean?  I think you have NOT included iphlpapi.lib in your LINKER input files.

Go to your PROJECT SETTINGS and the LINK tab there and add "iphlpapi.lib" to the "Object/libary modules" edit box there for ALL of your configurations.

Author Comment

ID: 9721784
I have included iphlpapi.lib in my PROJECT SETTINGS -> LINK
LVL 32

Accepted Solution

jhance earned 1000 total points
ID: 9721786
For ALL your configurations?
LVL 86

Expert Comment

ID: 9722121
Or, alternatively, specify

#pragma comment ( lib, "iphlpapi.lib")

in one of your header files.

Expert Comment

ID: 10248955
No comment has been added lately, so it's time to clean up this TA.
I will leave the following recommendation for this question in the Cleanup topic area:

Accept: jhance {http:#9721786}

Please leave any comments here within the next seven days.

EE Cleanup Volunteer

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction This article is the first in a series of articles about the C/C++ Visual Studio Express debugger.  It provides a quick start guide in using the debugger. Part 2 focuses on additional topics in breakpoints.  Lastly, Part 3 focuses on th…
IntroductionThis article is the second in a three part article series on the Visual Studio 2008 Debugger.  It provides tips in setting and using breakpoints. If not familiar with this debugger, you can find a basic introduction in the EE article loc…
The goal of the video will be to teach the user the concept of local variables and scope. An example of a locally defined variable will be given as well as an explanation of what scope is in C++. The local variable and concept of scope will be relat…
The goal of the video will be to teach the user the difference and consequence of passing data by value vs passing data by reference in C++. An example of passing data by value as well as an example of passing data by reference will be be given. Bot…
Suggested Courses

777 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question