Missing header files? Chapter Prefs Command
I am trying to send a kModifyChapterNumPrefCmdBoss command.
The documentation mentions that it aggregates the IID_ICHAPTERNUMBERPREFERENCES interface, however the documentation doesn't give us any additional information of functions to set and get the information. Any help, guidance or even hints will be appreciated.
Thanks
It's most likely your compilation strategy. When you begin to break things up into mutliple files, you cannot (always) use the gcc form:
gcc main.c -o main
as that actually does 2 things at once. It compiles main.c and then links it. That is where the undefined function comes from. It is a linker error.
To avoid this there are two things you can do. The "proper" way is to split these steps manually.
gcc -c main.c
gcc -c header.c
The -c flag tells gcc ONLY to compile the code. This will produce main.o and header.o.
Now, you can link manually, and you need to link ALL objects that contain used functions. "undefined" errors result from not linking in something that contains a function used.
gcc main.o header.o -o main
Now ./main should run as expected.
Now. There is a shorthand to this... but I would recommend using the above way, just to make you more familiar with the separation of the two steps AND what kind of errors are compiler errors vs what kind of errors are linker errors.
Shorthand:
gcc main.c header.c -o main
As with the initial usage, this combines both compilation and linking steps.
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Hi all,
I want to import a .dll into my .vi program but I am not able to do it...
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http://zone.ni.com/devzone/cda/tut/p/id/3303#toc2
Once the dll has been created, I have tried to import it with
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After parsing the header file appears an error like this one:
void __cdecl Zdmt(LVBoolean *stop, double P, char channelName[],
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int32_t minRecordLength, TD26 *InstrumentHandler, LVRefNum sessionRefArray[],
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HWAVES LastRecordFetched, TD24 *Impedance, TD17 *ColeColeCluster,
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int32_t *Acquired, TD6 *FreqTimeInfoCluster, double *averagesCompleted,
int32_t len);
The following symbols are not defined:
LVBoolean; int32_t; LVRefNum;
Undefined symbols can prevent the wizard from recognizing functions and parameters. To correct this problem, check the header file to determine if you must add predefined symbols. Click the Back button to return to the previous page of the wizard to add a preprocessor definitionsl (for example, "NIAPI_stdcall = __stdcall" or "NIAPIDefined = 1").
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I have replaced the first line #include "extcode.h" of the dll header file for #include "C:\Program Files\National Instruments\LabVIEW 8.6\cintools\extcode.h" that is the full path where the header file is located. However, new libraries seems to be missed:
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Does anybody know what I have to do??
Any help will be really appreciated,
Regards,
BenjaminIf you use any of the LabVIEW cintools headers, they reference other headers too. The import wizard is written in a way that it simply skips parsing datatypes that can not be resolved due to missing header files. If your functions you want to import references such datatypes then you get an according error about any include files the wizard could not load, otherwise not. The wizard can not know which of the missing header files is the problem since it obviously doesn't know what would be in those header files.
The LabVIEW cintools headers are multiplatform, meaning they evaluate various compiler predefined defines to determine which platform they are included in. The import library wizard does not define any specific defines, since it is not really a compiler. So you have to define them. And they get adapted with each new LabVIEW version to support new compilers and compiler versions, so the defines described in the link in the first post do not have to be correct for cintools headers in newer LabVIEW versions.
All in all writing DLLs that interface to LabVIEW cintools headers should not be done by writing them and then importing them using the wizard but instead you should write the VI and create the Call Library Node, then let LabVIEW create a template C file from the context menu of the Call Library Node and copy that into your C sources and fill in the functions from there.
Rolf Kalbermatter
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a division of Test & Measurement Solutions -
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While trying to build some packages recently, I discovered that for some reason, my system was missing a bunch of important header files.
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Hi all ,
where will i find header file 'stdtst.h' in CVI or TestStand ?
Thanks
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Hello,
I'm having trouble using an example from Visual C, AquireOneVoltageSample. I have DAQ card PCI 6221 and I am using Visual C++ 7. I followed instructions to run Visual C programs in Visual C++. But getting compile error
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I don't know where this file is, it seems to be missing or maybe I had to install some other additional support.
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I would first make sure that you have NI-DAQ v7.4 installed to make sure that you're up to date driver-wise. This is a free download from this location.
Once the driver is installed, you can find C++ examples for ANSI C and Visual C in the directory C:\Program Files\National Instruments\NI-DAQ\Examples.
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Tom W
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Missing header file NiDAQmxCom​ponent.h for Visual C++
Hello,
I'm having trouble compiling an example of measurement studio 8.6. I `m comiling the SpectrumAnalyzer, but getting error
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Hello,
I'm trying to install ros-hydro-desktop-full on this i686 arch laptop and I got stuck at compiling ros-hydro-collada-parser.
Ros-hydro-collada-parser has collada-dom from aur as a dependency. I have installed it, and all the right files appear in the /usr/include/collada-dom2.4:
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1.4 1.5 dae dae.h dom.h modules
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make: *** [all] Error 2
==> ERROR: A failure occurred in build().
Aborting...
The full output is here: http://pastebin.com/gAe8MNwb
It works fine on my 64bit arch system. The collada-dom folder is exactly the same and cpp file (collada-parser.cpp) is exactly the same.
How does this <dae.h> include work on my 64bit system and shouldn't it be <collada-dom2.4/dae.h> instead?
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Templates e Header Files in Java?
Hi Everybody...
So , I need do templates in java and I want understand how work one Header in Java? I think anyone not undestand this part...
So
I have one project in C++, I want convert this project for Java...and this project use the Header file(I created this header) and templates too...
I want know how I do this?because in the Java haven?t template...:(
thanks for the Help if you can help me...thanks for nowHi Everybody...
So , I need do templates in java and I want
understand how work one Header in Java? I think
anyone not undestand this part...
So
I have one project in C++, I want convert this
project for Java...and this project use the Header
file(I created this header) and templates too...
I want know how I do this?because in the Java haven?t
template...:(
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nowThere is a huge change in mindset from C++ to Java. I came from C++ and didn't miss header files a bit, so I don't guess I understand what functionality a C++ header file gives you that you're lacking in Java.
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The OCI header files are missing from the Oracle 8 for Linux
trial CD. Everything else works fine, but we can't develop any
client applications without an OCI interface.
I tried using the header files from Oracle 8 Solaris SPARC, but
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Does anyone know where I can get these files? If a purchase a
production version, will they be included?
I have a bare bones Linux ODBC driver for Oracle that I cannot
compile without them.
Thanks,
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nullStefan (guest) wrote:
: Mark Butler (guest) wrote:
: : The OCI header files are missing from the Oracle 8 for Linux
: : trial CD. Everything else works fine, but we can't develop
any
: : client applications without an OCI interface.
: : I tried using the header files from Oracle 8 Solaris SPARC,
but
: : the resulting program core dumps in olog().
: : Does anyone know where I can get these files? If a purchase
a
: : production version, will they be included?
: : I have a bare bones Linux ODBC driver for Oracle that I
cannot
: : compile without them.
: : Thanks,
: : - Mark Butler
: The header files are in the directory $ORACLE_HOME/rdbms/demo
: Yours
: Stefan
Do you happen to know how to link those examples?
It couldn't have been too hard to include a Makefile!
null -
Self-Made Header Files: C
I've been having a bit of trouble making my own header files in C. I have a basic test program along the lines of:
Main Program:
#include "header.h"
int main(void){
foo();
Header:
void foo(void);
Header.c
#include "header.h"
defines foo()
So basically, the syntax is correct (as far as I know), but I have trouble compiling it. I get an undefined function error with gcc. Are there some command line compilation arguments I'm missing? Could someone give me a basic walkthrough of how to make/use my own header files?
Thanks.It's most likely your compilation strategy. When you begin to break things up into mutliple files, you cannot (always) use the gcc form:
gcc main.c -o main
as that actually does 2 things at once. It compiles main.c and then links it. That is where the undefined function comes from. It is a linker error.
To avoid this there are two things you can do. The "proper" way is to split these steps manually.
gcc -c main.c
gcc -c header.c
The -c flag tells gcc ONLY to compile the code. This will produce main.o and header.o.
Now, you can link manually, and you need to link ALL objects that contain used functions. "undefined" errors result from not linking in something that contains a function used.
gcc main.o header.o -o main
Now ./main should run as expected.
Now. There is a shorthand to this... but I would recommend using the above way, just to make you more familiar with the separation of the two steps AND what kind of errors are compiler errors vs what kind of errors are linker errors.
Shorthand:
gcc main.c header.c -o main
As with the initial usage, this combines both compilation and linking steps. -
DW CS5 Missing Related Files Problem
Hello
Hoping somebody may be able to help me with a missing related files problem in CS5. I've tried Adobe phone support but they couldn't solve the problem.
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I've tried deleting the site and recreating it, copying the files to a new folder and setting up a fresh site, creating a new folder and downloading all files from the remote server but no joy. I've also tried refreshing related files. if I click on the filter in the bar it only shows the asp includes and nothing else.
Any help would be gratefully appreciated, this is a great feature when it works
Cheers
MBUPDATE:
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Hope that helps anyone else that encounters the same issue!
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How can I use a dll if I dont have a header file
I'm not sure if I'm even trying the possible here as I have searched and not been able to find much at all. However I figured it was worth asking here.
I have access to several dll's used by a program, I need to open a file using the program (for some reason it is completely non responsive unless you open it "within" the program itself) and so decided to browse the .dll files included. Ive found a few functions which may carry out the function I need. Is there a way of figuring out the inputs/outputs if I don't have documentation or a header file?
This is the next stage in a huge project I am working on at the moment and I've been banging my head against the wall all day trying to figure this out.
Thanks in advance for any help
Rik
That glass?
Thats glass is neither half full or half empty....
Its twice the size it needs to beYes, that makes sense. It also means that what you are trying to do is not likely to work. You have no way of knowing what the program does when opening the file, so guessing at using the DLLs is purely a shot in the dark without even knowing where the dark is. Even if you could find the function (assuming it's just one) that loads a file, how is the program supposed to use it now? That function has to be called from within the program. When you call it from LabVIEW you are not sitting inside the program's memory space, so it has no way of knowing about the file.
I would suggest, instead, to see if the program accepts command-line parameters. For example, does it accept a name of a file to open as part of launching it from the command line? If not, then you may need to resort to trying to control it via automation. If it has no built-in automation then you need to resort to using the OS to make pretend you're clicking buttons and typing text. This has come up many times before, and there have been numerous posts on this, so please do a search on controlling an external program from LabVIEW within this forum. You can call the Windows API functions to move the mouse to a specific location and click the button as well as typing text, or you can use third-part automation tools. One that I have used successfully is AutoIt. The search I indicated will yield other suggestions.
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