Open the waveform array Vi object reference

Hi, I would like to change a property of an indicator in a VI of VI another (in particular I want to erase a waveform graph), I used Open VI object reference, but I'm not able to access the data in the history. How can I do?

OK, sorry for the confusion between you. I haven't checked the strict reference waveform with reference open function.

Using the "good old way" works:

Norbert

Tags: NI Software

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RTE de LV cannot open the project files that include references .lvlib in dependencies

I am writing a DLL LabVIEW to inspect the LabVIEW project files, and I noticed that if a project has a .lvlib reference in its dependencies, then the Run-Time Engine is contradictory on whether or not he can find the project file:
- Project.Open returns error 7 (file not found)
- Project.GetFileLVVersion is a success
Here are some excerpts from my code of G and C engaged in this behavior:
```
   int openStatus = StatusSuccess;

   char * projectVersion = createStringWithLength (VersionStringLength);
printf ("Analysis %s\n", pathchaine);

   OpenProject (pathchaine & openStatus, projectVersion, VersionStringLength);

   printf ("  project written in LabVIEW %s\n", projectVersion);
If (openStatus is StatusSuccess)

   {

      printf ("  Open the project file.") \n") ;

   }

   on the other

   {

      printf("Error: could not find Project file, or file was not a Project file (Error code %i).\n», openStatus);")

   }
```
However, when running in the development environment, the two methods are successful.

Is this a bug, and if so, is it fixed in 2014 of LabVIEW?

Here's how you can reproduce:

Prerequisites:
reference .lvlib to break dependencies Project.Open in LV RTE
```
$ make

patch the file "builds/platdefines.h.

GCC - std = c99 g OpenProject.c o OpenProject.exe - lOpenProject - Lbuilds
```
6. type "c:\xtra\temp\OpenProject.lvproj" OpenProject
```
OpenProject $ 'c:\xtra\temp\OpenProject.lvproj '.

Analysis c:\xtra\temp\OpenProject.lvproj

  Project written in LabVIEW 13.0

  Open the project file.
```
7. the opinion that both call nodes execute correctly.

8. type "c:\xtra\temp\OpenProjectWithLvlibDep.lvproj" OpenProject
```
OpenProject $ 'c:\xtra\temp\OpenProjectWithLvlibDep.lvproj '.

Analysis c:\xtra\temp\OpenProjectWithLvlibDep.lvproj

  Project written in LabVIEW 13.0

Error: Could not find the project file or file was not a project file (error code 7).
```
9. notice that the node version managed while the open failure.

10 type diff OpenProject.lvproj OpenProjectWithLvlibDep.lvproj
```
$ diff-u OpenProject.lvproj OpenProjectWithLvlibDep.lvproj

-OpenProject.lvproj  kills Nov  4 11:28:28 2014

+++ OpenProjectWithLvlibDep.lvproj      kills Nov  4 11:32:37 2014

@@-13,7 + 13.11 @.

       true

       fake

       

-      

+      

+          

+              

+          

+      

       

          

             true
```
Here's another way to trigger this behavior, which shows that LabVIEW occasionally Range the element dependencies:
Add to the project a new VI and place the constant path of file "Application Directory" his block diagram.

Select ""leader "Save All (this project)" and use the default name for the new VI.

Type 'c:\xtra\temp\OpenProject.lvproj' OpenProject

Notice that there is a mistake once again, as is expected.

Remove the "Application Directory" path of file constant

Select ""leader "Save All (this project)"

Type 'c:\xtra\temp\OpenProject.lvproj' OpenProject

Note that the problem has disappeared, as is expected.

Add the "Application Directory" path of file constant in the block diagram.

Select ""leader "Save All (this project)"

Type 'c:\xtra\temp\OpenProject.lvproj' OpenProject

Notice there is no problem, which is surprising, because that there should be a mistake because the dependencies item was not tidy.

Close the new VI and pull out of the project.

Select ""leader "Save All (this project)"

Open "OpenProject.lvproj" in a text editor.

Note that the dependencies item was put away.

Add VI back to the project.

Select ""leader "Save All (this project)"

Type 'c:\xtra\temp\OpenProject.lvproj' OpenProject

Notice that there is a mistake once again, as is expected.

NInjaneer_wow wrote:

The same behavior occurs in LabVIEW RTE: a new project with a constant of the Application in an empty vi directory will return an error 7 - file not found, but still return the correct version of LabVIEW in which the project was created.

I did experiment with workarounds for this problem, and I found a.

When I used to get the path of LabVIEW libdir in the ini of the executable file, execution is able to load and inspect the project file.

LIBDIR = 'C:\Program NIUninstaller Instruments\LabVIEW 2013'

While it is expected that a stand-alone executable can be placed on a system that does not have the LabVIEW IDE, it is still surprising to me that the execution engine cannot find standard library of LabVIEW without some explicit guidance. What other factors contribute to this behavior?

References:

Configuration of LabVIEW files and paths- http://labviewwiki.org/LabVIEW_configuration_file/Paths

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Hello world!

Im having some problems with my code. I can't put a reference line (or another function, as a sinusoid of reference) in the waveform table, I tried to put a package but I couldn't make it work, the wire bundle not on the list of waveform. I would like the references to stay still and moves not as pictured.

the other thing is that im working with control of the force, and I want to record in a table of max 3 force values (there will be 3 tasks of the maximum force, and I want to save the 3 max values with 60 s interval between them, by running the program only once), but it does not work.

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I am having trouble with the corruption of the data. My minimal test case is below.

I have a VI that returns an array of clusters. My TestStand sequence simply call this VI and connects to its output:

When I run the (with my open VI) .seq file, I can see the update of the Panel before LabVIEW with expected values:

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This problem only affects data that appears "below" the waveform in the cluster. In the case of the sample, if you put the waveform as the last element of the bunch, I think that it works correctly. I know that your real data could be more complex than this example, but this workaround solution would help in the meantime? You could also consider separating the waveform of the rest of the data, that would probably work too.

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Ah... Yes it makes sense, so he is right behind them ;-) But you right - it seems that findKeyStrings should ideally ignore these, you want to send the English version, not the "English with all these additional signs.

In fact, I don't remember. I was almost about to write a bug report. But I think it's just that the script documents are deficient:

* EDIT *: so if you are on Windows, you can determine the string to go straight. Press alt and use the keyboard to navigate in the menu, this will allow you to see where the ampersand should be added. For example here is my part of the menu:

There is a much easier way! The signs appear in the title property:
```
app.findKeyStrings(app.menuActions.itemByName("Insert Cross-Reference...").title)
Result: $ID/New XRef...
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Open the waveform array Vi object reference

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