Dll C structure

I search all the examples about how to pass the c structure dll in LABView, but I really don't know the true answer.here is my question:
I want to use this dll which was given from my customer.but I don't get the following data that I expected.
/*struct SDownloadInfo {
BYTE status; // status of the process (Eeprom Dawnload Status)
BYTE perc; // percentage of the process (0 - 100)
BYTE err; // error code (see ERR_CODE)
BYTE nRetry; // n. attempt (1 - 3)
SBIT100_API SDownloadInfo GetDownloadInfo(),
the sepc. say that if the downloadinfo is 4, the process is complete, but because this involed the SDownloadinfo,
I use the dll like this
but there is no correct data display,
Thanks! need your help.
maincool
Attachments:
eep dll.doc ‏25 KB

dll C structure
maincool
Attachments:
setting.GIF ‏61 KB
setting1.GIF ‏61 KB

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%UTIL-3-DLL: Data structure error -- non-tail element contains NULL next p

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It does not say much !
The following are utility messages.
Message
%UTIL-3-DLL : Data structure error -- [chars]
Explanation A software error occurred, resulting in a data structure inconsistency.
Recommended Action Copy the message exactly as it appears on the console or in the system log. Research and attempt to resolve the issue using the tools and utilities provided at
http://www.cisco.com/tac. With some messages, these tools and utilities will supply clarifying information. Also perform a search of the Bug Toolkit
http://www.cisco.com/pcgi-bin/Support/Bugtool/home.pl. If you still require assistance, open a case with the Technical Assistance Center via the Internet
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%UTIL-3-DLL: Data structure error -- non-tail element contains NULL next po

I am getting the error in my 7200 vxr router where running ios is c7200p-advipservicesk9-mz.124-15.T4.bin
error is
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Please help me out from this problem

Error message decoder results:
1. %UTIL-3-DLL: Data structure error -- %s A software error occurred, resulting in data structure inconsistency.
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Hi everybody,
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I have a dll which consists of three c files. Find bellow the c file of the loader and the three files of the dll. In dll, file 1 and file 2 are almost identical, static arrays names and sizes, structure names, Prepare_1() and Prepare_2() functions. There
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Solved!
Go to Solution.

Hello Thomas,
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The CLFN ouput shown in my previous message was done with the "handle to value" parameter. As you stated, it sends a reference to the struct memory location.The problem is that i need to pass the structure value as an input and not a pointer to it (well, that's what i think the problem is). I read the various documents about CLFN and I tried the examples but they are all have function of that kind:
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Attachments:
LIN test.zip ‏130 KB

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Phil Spratt wrote in message
news:[email protected]..
>
> I need to access information stored in a structure(manipulated within a
DLL)
> from
> the calling function. I defined the structure in the DLL include file and
> #include "dll_include.h"
> in the source code. The dll function manulipates the contents of the
structure
> as desired; however,
> I can not get access to that structure from the calling function. If
anyone
> has any ideas, I would
> certainly appreciate t
he help
> Phil

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Hi folks.
I was hoping to recieve some help or advice on solving this problem I am having in labview:
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Solved!
Go to Solution.

Akiel wrote:
unfortunalty the call library node doesnt map labview types to c types very well. It can be done but took me a lot of time and effort (and overworking google) to manage it. In the end i abandoned the cln and write a c# code that interfaces between my dll and labview.
sorry cant be of much more help.
I think NI need to improve this functionality as the CLN could be useful but hard to get working on anything beyond a simple dll interface
That is not true!
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Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions

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We have been given API's( collection of C Functions) from some vendor.
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Structure using dll

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Gennady,
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Hi!
I need to call a VB ActiveX DLL from LabVIEW. When I run my LabVIEW code, I always meet an error as:
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For I = 1 To 31
Set MyInputData(I) = New EM_nkd_DataPoint
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~~~
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Many thsnks.
TX
Attachments:
T07.vi ‏166 KB

Hi,
if you have a complete source code including EM_nkd_DataPoint class module, take a look inside in order to see data types for Amplitude, DataPointType, DataSource and Wavelength (probably for Amplitude and Wavelength is SINGLE). If this code is not available, maybe the author mentioned a type for T_SUB and MEASURED even if they are constants.

Newbie: Passing Structures between DLLs via Java

A fairly high level question for you good people:
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My Java code does not need to do anything with this
data, except pass it to a second DLL for more
processing (the second DLL for example needs to do
something with just the double and the string).
My question is, is this sort of thing practical to do
using JNI (I have the DLLs already but can easily add
the JNIEXPORT etc functions) ?
Somewhere in memory a hunk is reserved for this. Your code does it or some external piece does.
You have a pointer to that.
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You cast the pointer to a long and return that to java. Your java piece keeps track of that.
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Dll C structure

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