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Found 14 results

  1. Hey all, (Cross-post from ni.com forums) We have a LabVIEW application, which has a LabVIEW-based Installer. This LabVIEW installer is called from within another Inno installer (since our main Inno installer pulls together multiple components, most of them not LabVIEW). Whenever this Inno installer ends, it always asks the user to restart their PC, even if the LabVIEW installer was cancelled. I narrowed it down, and it's reproducible with only the LabVIEW installer, so it's definitely LabVIEW installer's fault. According to Inno's help documentation, "if a program executed in the [Run] section queues files to be replaced on the next reboot (by calling MoveFileEx or by modifying wininit.ini), Setup will detect this and prompt the user to restart the computer at the end of installation." However, as stated above, this dialog is triggered even if the LabVIEW installer was cancelled and wrote no files. Now, the above linked documentation refers to a flag I can put in my installer script to ignore this restart dialog, but it's a global flag, and I would like my other installers to still make use of this handy restart dialog if necessary. Unfortunately it seems LabVIEW installers trigger this even if not actually necessary. Has anyone seen this before? Any ideas how to make my LabVIEW installer NOT muck around with the MoveFileEx or wininit.ini stuff if/when it's not actually needed? Attached is a LabVIEW project and Inno Installer script which easily reproduces the problem. To reproduce: Extract the attached .zip Open test.iss in Inno Setup and click the "Run" button Alternately, just run the built installer under "\Output\test_inno_installer_9.99.0.0.exe" Click Next on 'Select Components' dialog Click Install on 'Ready to Install' dialog When LabVIEW installer pops up click Cancel, then yes (you're sure) See the Restart dialog Thanks! David_L InnoLabVIEWBug.zip
  2. Hi Friends, I am facing issue in labview programming. My vi read csv file in a folder and plot it in waveform graph. Initially i have twenty csv file in that folder, while runnning my vi some more csv files will be added to that folder. The problem is only twenty csv file initially placed got read, later added csv files were not read by labview. Condition: Once my vi starts running, the files will be automatically added to that folder. Because i am running an experiment which stores data in the form of csv file to that folder. How to keep on read the csv files continuosly while my experiments stores series of csv files.
  3. Hi LAVA-ers, I'm finally implementing a long-delayed transition from our homebrew LabView build system to Jenkins. The best build-step option (for Jenkins under Windows) seems to be "Execute Windows batch command". My batch command looks like this: pushd "directory-containing-lvproj" echo "Running LabVIEW build process..." start "bogustitle" /wait "C:\Program Files\National Instruments\LabVIEW 2017\LabVIEW.exe" "Build.lvproj" "BuildJenkinsProject.vi" echo "complete, errorlevel %ERRORLEVEL%" popd where BuildJenkinsProject.vi is set to run when opened. BuildJenkinsProject.vi reads some environment variables set by Jenkins, sets up the builds (multiple EXEs and installers defined in a different lvproj) builds away. But my builds take a while, and I'd like to see the output from my logging system inside Jenkins while the build is in progress. Some Googling turned up these posts re: sending output to stdout from LabVIEW: https://lavag.org/topic/13486-printing-to-the-standard-output/ https://lavag.org/topic/11719-running-a-labview-exe-from-the-console/ I'm running LV 2017 64-bit, and none of the existing examples were handling 64-bit HANDLEs correctly, so I wrote a new version. This version uses only WinAPI calls (vs WinAPI + .NET), fixes some bugs, and it stateless, so you can call it anywhere in your code. Even when flushing the buffer after every write (which some on the Internet claim is necessary to get real-time log output; I am skeptical) it is plenty fast, around 10,000 lines per second. Since jdunham had previous written a fancy object-oriented logging system, I subclassed our logging system to write to stdout as well as the regular log. When I build from cmd.exe using the above batch file, it all works as intended. My problem: when Jenkins runs my batch file, I get something rather less exciting: nothing! E:\Jenkins\workspace>labview\Build\BuildJenkinsProject.bat E:\Jenkins\workspace>pushd "labview\Source\Build\" E:\Jenkins\workspace\labview\Source\Build>echo "Running LabVIEW build process..." "Running LabVIEW build process..." E:\Jenkins\workspace\labview\Source\Build>start "bogustitle" /wait "C:\Program Files\National Instruments\LabVIEW 2017\LabVIEW.exe" "Build.lvproj" "BuildJenkinsProject.vi" E:\Jenkins\workspace\labview\Source\Build>echo "complete, errorlevel 0" "complete, errorlevel 0" Not a big deal since I have my regular log files, but having gotten this far it would be nice for Jenkins to show work-in-progress. Any ideas? In the meantime, here is a stdout writer. (Released under MIT License, copy away.) -Rob Calhoun Attached: stdout writer function for LabVIEW 2017, and save-as-previous to LabVIEW 2012. WinAPI Write to StdOut Folder.zip
  4. Hi, Can I put a vi labview application on a web server on html 5 for exemple? if we can do that, it can be done just in local network(with several machines TCP/IP) or can be connected with a web server ? Thank you
  5. Reposting this here in an effort to gain some traction because it's absolutely killing me. I'm trying to build a standalone .exe with a VI that contains a Scilab script using the Scilab gateway. On the actual program I created I get an error message stating that the front panel cannot be loaded on the SubVI that contains the Scilab script node. If I delete the node the program runs fine. I decided to create a very basic VI containing a Scilab script to troubleshoot, and I get the following error: "This VI is not executable, The full development version of Labview is required to fix the errors". I don't understand this at all, since I do have the full development version of labview. Also, the code runs fine as a native VI, and this error is occuring on my development machine, so all required files should already be in the correct locations. Additionally, I've added "ScriptScilab.dll" as an always included source file and it's in the correct folder for the runtime engine. In fact, I've tried it in multiple different locations (app data directory, app root directory, LV2017 root directory, etc...) and still nothing. What am I missing here? .Zip of may sample application attached. My Application.zip
  6. Bonjour, I use Labview 2015 32-bit on a 64-bit Win& pro computer. My application connects to Hardware using NI-VISA and NI-DAQmx only (Two RS232 communications via a VCOM port and one NI DIO card using DAQmx). Until today, I was building an executable which I was copying through the network on another win7 pro machine in the lab next to the hardware. It was working fine with Labview Runtime 2015 installed on this machine along with NI-VISA and NI-DAQmx. I never used an installer, I installed those 3 components seperatly. Yesterday I added some features to the application and the EXE won't start. I have an error msg saying "The VI is not executable. The full version of Labview is needed to fix errors". The machine in the lab can't run the EXE but the EXE won't even start on my development machine. My previous EXE from last week still works fine. The code works fine with all new features if I run the main VI from the development environment. I've double check all of my licences status. If I open another project and compile the EXE, I am able to run this EXE (I use a complex app containing almost all the same software components) If I build an EXE with a different UI source file part of the same project, that EXE works fine. If I build the EXE from my previous version again, it works fine too. I tried removing all the new features I had added in the project and build the EXE again and I still get the error. I tried creating a new project file and import the same librairies to try building an EXE from a fresh project file and I still get the error. I tried installing Labview 2015 on another computer and try to build an exe from a fresh labview install on this computer and I get the same error. The development machine can't execute the compiled EXE) It has to be related to the code but, I can't roll-back and get functionality of the EXE again unless I totally replace all of my files from a backup made last month. The most recent posts I read from a similar error are from 2013 and later. And the problem described is always that the EXE does not work on the deployment machine but works fine on the development machine. I must be at version 25 of this application to which I add improvements on a regular basis since almost 1 year. I am really puzzled. Is there a way to analyse or get more info about the broken EXE error? All the new features I added are using components that were already present in the project and in the main VI. The new features are important, I'd really like to use this working code with the hardware as soon as possible but I don't really want to install labview on the development machine. Any ideas? I don't know what to try next. What would be the best information to provide / look for for the next step? Thanks to all in advance Nien
  7. Dear Sir, We have built an exe which has DAQmx and other sub VIs included in the dependencies automatically. The EXE builds successfully. However, when we run the exe on the development PC, it gives an error saying DAQmx VIs and Read delimited spreadsheet VI missing. Pls find attc. screenshot for error. Kindly help us to resolve the problem. Thanks, Regards, khmlv.
  8. Hello to all. I am deploying an executable (not installer) in a target PC with the same programs (labview and toolkits) installed than the development machine. When I create executable I uncheck the option "enable debugging" (see image below): ** In the image "enable debugging" is checked but I uncheck in my application. Then I am trying to debug in run time and of course I can not. I do this to make me sure that the user can not get my block diagram. But now I realized that in .ini file that Labview creates with executable there are these options: DebugServerEnabled=False DebugServerWaitOnLaunch=False So if user writes "true" in these options, can they debug in real time and because of that get my block diagram? Thanks a lot!
  9. Hi All, I have an application that uses PPL (Packed project library). During the build process of my application LabVIEW copies the PPL to build/My App Folder/data. I can run the application afterwards. If the PPL is deleted or moved later from this ../data/ directory I no longer can run the app. Is there a way to dynamically link and load PPL from another location? I've tried using viSearchPath for this but unfortunately it doesn't work. Thanks, Nikita. also posted here http://forums.ni.com/t5/LabVIEW/Create-a-link-to-PPL-Packed-Project-Library-in-Application/td-p/3555902
  10. Hello, I am working on Diesel Injector measurement system. For controlling test bench LabVIEW(Full development system sp1) is used. Problem in detail: Main Program will call another VI(it is in Project packed Library called as Test Panel).Everything work fine in development system but when I try to make an Application at that time Test panel** program start & within one second it is closed ,Application become unstable Thank you in advance ** Test panel is a module program,included into PPL.In the attach pic, I am working with 'Module Program Labview2010' that send message or data to PCRs5 through 'Testpanel ppl'
  11. Hi all, Have you see these Windows PCs on sticks?? http://www.amazon.com/gp/product/B00RVCGNEC/sr=8-1/qid=1422529141/ref=olp_product_details?ie=UTF8&me=&qid=1422529141&sr=8-1 http://liliputing.com/2015/01/intel-compute-stick-149-pc-stick.html I would love to know if anyone has tried running Labview Executables on them and if they have ran into success or trouble? Of high interest to me would be serial communications using serial adaptors. Im still not sure if this is possible with this class of PCs. cheers Puya
  12. Hi all, I'd appreciate some advise or pointing in the right direction regarding building an EXE with class dependencies. I have a project built with actor framework and when I build it to exe, I get lots of dependencies which I think should be included in the EXE as seen below: On my Source files build properties page I currently have nothing under Always Included. I did try including all of the lvlibs and including them in the EXE but it didn't make a difference. In summary, I think the way my EXEs are building is not right. It is easy to see what VIs I'm using (although you can't open them) and it doesn't look very professional. What are the best practices for building dependencies into EXE? Thanks
  13. Hello, Does anyone know how to get progress when building an EXE with Application Builder API? I am using the code below to automate my work and it would be nice to see a progress bar like when you build your application from the LV Project. I've found a VI called "Create progressbar events.vi" but I don't know what it does and how to use it. Thanks a lot for help. Matthias.
  14. I want to make an exe application from a .vi to install on another non-labview-installed machine (I want to use the runtime engine). The only problem I can foresee is that I built the software on a version of Labview that has all the add-ons, and I don't know which ones I have used. I want to know if there's a way to identify which add-ons or national instruments programs have to be installed in order for my exe to work. I know I used IMAQ and IMAQdx, and many of the programmer functions such as case statements, but there's probably more I don't know about. Sorry I can't attach the vi, it's potentially going to be sold in the future. Thanks for any help you can offer, James
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