Dynamically opened front panel won't work in executable

I am dynamically opening the front panel of a VI from the top level VI. After I build an executable, this does not work anymore.
Any ideas?
Scientia est potentia!

See the marked solutions in these threads.
http://forums.ni.com/ni/board/message?board.id=170&thread.id=402041
http://forums.ni.com/ni/board/message?board.id=170&message.id=400907&query.id=212194#M400907
Message Edited by elset191 on 07-23-2009 03:38 PM
Tim Elsey
LabVIEW 2010, 2012
Certified LabVIEW Architect

Similar Messages

SubVI does not open (error 3 could not open front panel)

For the VI I am working in (trail version of Labview 2011), I have created a subVI. At one time I opened this subVI to adjust the connection terminals -which I have done before- and after saving the file and closing it, the subVI remained unadjusted. In fact, I am not able to open the subVI anymore. And when I want to open the file as a VI (e.g. executing the VI in windows), I receive 'load error code 3: could not open front panel.'
I also cannot preform any tasks such as saving the main program for an older version, because this subVI is present in the program.
Nevertheless, the VI still works as a subVI in the mainprogram I've written -in the way it worked before I adjusted the connection terminals.
Is there any way to resolve my problem, without rewriting the whole subVI? The subVI concerning is attached in this post.
Thank in advance,
ps. after closing Labview, it sends an internal warning report.
Solved!
Go to Solution.
Attachments:
ampweightcenter.vi ‏25 KB

Hello Stag,
My name is David and I am an Applications Engineer at National Instruments UK.
To clarify the problem, when you receive this error are you trying to run the VI as an executable, standalone file in Windows? If this is the case then I think that I know what the problem could be. When using the Application Builder the Front Panels of SubVI's are removed to reduce file size. It is possible to include them so that they may open and the steps to doing so are listed in the attached link:
http://digital.ni.com/public.nsf/allkb/8F68715444302CAB86256DDD0071C140?OpenDocument
This link explains why you are receiving this error and how to overcome it.
I hope that this helps you and do not hesitate to contact me if you require more assistance.
Regards
David B
Applications Engineer
National Instruments UK

Open front panel of sub vi when called - how?

Hello,
I have a VI with several sub VIs.
I want some of the sub VI front panels to be opened, if they are not yet opened and if they are called but I want them to stay in the background.
There are two SubVI Node setups: "Open Front Panel when loaded" and "show front panel when called"
Both are not what I want. If I select "show front panel when called", then the front panels are opened but flickering because they are called often and alternately.
Greetings Johannes
Using LabVIEW 7.1 and 2009 recently
Solved!
Go to Solution.

johanneshoer wrote:
No, no issue with my code :-)
Yeah, we've heard that one before...
@smercurio_fc: With your example I can see if a subVI is opened or not, but how can I open the subVI during run time if it is not opened
Just call the method with it set to "write" (right-click and select "Change to Write"). I don't recall if LV 7.0 has a Front Panelpen method. Check the LabVIEW manual.

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Front panel sound not working

Front panel sound not working* Hello everyone,
I've just bought a PCI Express X-Fi Titanium. So far everything works great with my 5. sound system, but I have problems with my front panel audio.
My case only supports AC97 front panel audio, but has all individual connectors (so 7 single connectors, not one with 0 pins).
I've already tried only connecting 5 pins (the two AC97 return pins unconnected) and connecting all 7 pins. In both ways the microphone works, but sadly not the headphone output. I also tried changing the two options in the driver but that changed nothing.
I did some Google searching and found many reports where the sound itself works with an AC97 front panel on an HD soundcard, just no jack detection.
Any ideas why that isn't working for me?

! Try here for pinouts of your jacks. I have a Cooler Master case that has AC97 and INTEL HD front panel jacks, but here is the kicker. The AC97 jacks come from the front panel first and then about fi've inches from this jack is an INTEL HD jack. A few wires are changed but perhaps these will help...
http://www.intel.com/support/motherboards/desktop/sb/CS-0585.htm
Cheers,
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VI front panel won't close when it's done executing, when this vi was called by reference.

I've created a simple vi set to demonstrate the issue I'm having. I'm dynamically launching sub vi's from a main application. Simply put the main application is my test exec and the subvi's I'm calling dynamically are different tests. In the example I'm posting here the test vi is called Electrical Test 1.vi. I've configured this Electrical Test 1.vi to show front panel when called and close afterwards if originally closed. Problem is it won't close the front.
Other things to keep in mind
I want to be able to launch the test vi and not wait till it's done.
I'm using LabVIEW 2012 SP1.
Solved!
Go to Solution.
Attachments:
vi_launcher - v5.zip ‏73 KB

Basically the close after call only matters if the VI is called as a subVI (just like if you open a VI yourself and run it, it doesn't close when it is done). The two ways around this are to either have your top lvl app close the VI when it is done, this is explained here:
http://digital.ni.com/public.nsf/allkb/987B2026B41BD39786256CF800032E8C
or to have your VI close itself when it is done. Use a This VI reference and the Front Panel:Close invoke node.
Hope this helps.

How to open front panel of a VI running in RT.

Hi,
I have an application to read the encoder position using the cRIO program. I have made an executable and this application runs as startup application whenever the controller reboots. Right now, i am accessing the VI of the startup exe through Remote Panel connection. This works fine but everytime i close the remote panel , i have to reboot the controller for the next view.
So is there any alterntaive to open the front panel of the VI.
I tried using VIServer but ran into errors. (i tried using front panel -open property node.did not work)
Also i do not have any VIs stored on the controller. Only the exe is stored on the ni-rt/startup folder on the RT controller.
Please let me know how to open this VI.
Thanks.

Hi Ben,
When i close the remote front panel the first time, i am terminating the RT VI which is running on startup.
So i had to reboot everytime to access the remote VI. I guess that the VI (exe) should be continuosly running when the RT is started up. The remote panel only should be opened and closed. After I close the remote panel , i want a windows VI to be opened up.
I have a Windows VI which programmatically opens connection to the RT server for opening the remote panel. The VI runs. When the user clicks Exit on this RT VI, the VI running is stopped and then another windows VI opens up. This works fine for first time. Since the RT VI is terminated, second time , if I run, it says, VI not in server memory.
Is there a method to close the remote panel programmatically in the RT VI itself. I have a Exit button in this RT VI, so if the user clicks, Exit, the program has to be running, but the remote panel has to close. There is a method called close connection to client , but this does not work in RT , as this requires VI path.. Right now , when the remote panel RT VI is launced, to close the remote panel, i click on the 'close' button on the VI title bar. Again when the remote panel is launched, there is no error. but is there a method to close the remote panel in the server(RT VI itself). i have attached the VI.
Thank you.
Attachments:
Dummytest.vi ‏39 KB

How can i open front panel of a vi and run it

Hi
I have a vi that i call multiple times from another vi, however i want it to open the front panel on some calls and not on others. What is the best way to do this?
I have come up with a way and was wondering if this method was okay or is there another method that might work better escepcially since i am eventually going to create an application out of it and hope that no problems pop up then
Unititled 1 calls Untitled 2 where with one call it opens and runs Untitled 2 while with the other call it simply runs untitled 2.vi
What I did was i changed untitled 2.vi window appearance to dialog but i deselected the show front panel when called, so by simply calling the subvi form untitled 1 it works. Unititled 2 runs but does not open
Now with another call i want to open and run untitled 2.vi so by looking the attached vi you can see what i have done
Again if there is a better method that would make my vi's more efficient i would greatly appreciate it.
Reza Sed
Attachments:
Untitled 1.vi ‏24 KB
Untitled 2.vi ‏10 KB

What you did, in theory, is the correct way to do it. However, you should move the front panel open and close into Untitled2.vi and have a boolean input as to whether to show the front panel or not. This way, your calling code is cleaner, and you don't have to reproduce the code everytime you want to call the subVI and show the panel.
If you were to use Untitled2 in another project, then you woud have to go back and look how to implement the showing of the front panel in your other code. If later, you were to decide you want that VI to be maximized, then you make one change in the VI, and not in every place you ever call it showing the front panel.

Problem : controls & indicators not updated when programatically open Front Panel

Hi,
I have a strange problem when I want to progamatically open the front panel of a sub-vi: for some sub-vis the controls and indicatores are correctly updated while for others they are not (ie the controls show outdated values).
I have created an example here that illustrate this. The 2 sub-vis are *exactly* the same, but only one shows updated controls when I open it (with the sub-vi previously closed of course).
How is that possible?
What do I have to do to have the controls updated to the last value of the *last call* when I open the sub-vi?
Solved!
Go to Solution.
Attachments:
Front panel problem.zip ‏35 KB

titi_nicolas wrote:
mhmmm,....no that is NOT the reason... Have you tried the VI???
Honnestly, I would not bother people on this forum for such a stupid mistake.
And I also expect people to know how to run a VI....
And to play in your game, you forgot -3) Turn on the PC, -2) log in windows, -1) open labview...
Well, I DID run your VI and everything worked just fine, however I no longer have LabVIEW 7.1 so maybe your observation no longer applies to newer versions. It could also be because they were just upgraded as Ben noted. I did not study it in detail.
And Yes, as Ben noted, invisible VIs don't get updated for performance reasons (and not to waste extra data copies for the controls and indicators). LabVIEW is typically smart enought to update when needed, e.g. if the subVI tries to print its panel, etc.
I guess you haven't been in this forum for too long, but since controls can easily be operated in edit mode is is absolutely important to mention at which step you run the VI. (try to operate your controls with the computer turned off and you will see that it is not that easy ). Also if you have been programming for any length of time, you should know that stupid mistakes happen all the time (at least to me and Ben ). It is much easier to weed out the stupid mistakes with a quick question&answer than to spend hours searching for a deep and complex solution.
LabVIEW Champion . Do more with less code and in less time .

Publishing VI's on the Internet without open front panels

I'm using LabVIEW 6.02 and are publishing VI's on the Internet. I'm wondering if it is possible to publish VI's without having the front panels open when you are running the program?Or do they have to be open to be in memory and to be able to get updated front panels?
(I use the .snap command so it is possible to refresh and get updated VI panels.)
I also wondering if the only difference between .snap and .monitor command is that you can use the refresh command with monitor so the labVIEW display will automatic updated itself. This is not possible with the .snap command?
Thanksregards Anne

I've never tried to exactly what you are talking about but a similar issue comes up when printing. A front panel normally won't update unless it's open. The way to insure that it does is to have at least one property node on the routine's block diagram. When LV sees the property node, it goes ahead and updates the front panel even when it's closed.
Hope this helps...
Mike...
Certified Professional Instructor
Certified LabVIEW Architect
LabVIEW Champion
"... after all, He's not a tame lion..."
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Xonar D1 front panel microphone not working in kernel 2.6.33

It is not possible to record anything from my front panel microphone jack after I updated kernel to 2.6.33.
It still works OK with kernel 2.6.32.10, but does not work with 2.6.33.3, and it did not work with 2.6.33.rc8 too. The front panel switch in alsamixer switches only output but not input (mic) now. Before, the switch had impact on both output and input.
When I activate the back panel on the card everything is working well (back panel connectors are active, front panel connectors are inactive). When I activate the front panel then the front panel microphone is not working (back panel microphone works). The alsamixer front panel switch does not have impact on the microphone any more and no switch was added to control the microphone separately from the output.
The alsa version is 1.0.23.
I use 32 bit kernels. My brother uses 64 bit kernels and the problem is the same for him too. Although he uses Xonar DX.
Any idea how to get this fixed?

I'm also having trouble with the 2800pci driver. I installed the v26 firmware from the PKGBUILD in this thread, and it does scan as Cdh says, but will not connect...
$ dmesg | grep rt2800pci
rt2800pci 0000:04:01.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18
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$ lsmod | grep 'rt'
rt2800pci 9547 0
rt2800lib 21101 1 rt2800pci
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The rt2860sta driver does work, but only at G speed not N. I also tried the ralink 2.3.0.0 driver, but it is even slower than the kernel driver. With 2.6.32 kernel, I was able to get N speed from their 2.1.2.0 driver, but that one won't compile anymore. I've had nothing but trouble with this card for the last year.
I'm very tempted to just buy another card, but I'm not sure which one to buy.

Mic In 2 on front panel don't working (but after many read, he don't working agai

Hi people !
So i've a little problem with my Mic In 2 on my front panel I/O. I'd a soundblaster X-Fi Xtrem music, and recently, i've upgrade her with an optional Front Panel I/O. The front panel work perfectly, and two days ago, after reinstate the PC, the MIC IN 2 don't work suddenly. This back MIC IN work perfectly, but no signal for the MIC IN 2 on front panel. I've reinstate the drivers (the last drivers on the creative official site), i activate the MIC, activate the potentiometer at max on front panel, activate the mic boost in windows xp audio panel, i try another entry (ligne IN, auxilary...) for this MIC 2, i check the AUDIO CONSOLE... but the MIC IN 2 entry is not activate.
I read many post, but waht's the Creative Mixer ? I don't have Creative Mixer but Creative Audio Console. If is the even of windows xp Audio panel, the Line 2 (call "Line IN" normally in my pc : yes i've txo "Line IN", one at left (not activate at the same time of microphone) and one at right (activate in the same time of microphone), she's activate...
The MIC IN 2 work, i'm sure, but i've no signal because this entry appear disable for me ( despite Windows Xp Audio Panel ),
Someone have a solution ?
Thanks in adavance
Message Edited by Claymenia on 04-20-2008 0:55 AM

i made work my MIC IN 2 in front panel, with removing jumper (dynamic mic), but i heard my mic but windows xp software (msn, teamspeak, skype...) do not receive a signal. this very strange, with removing jumper, the MIC IN 2 is activated on front panel hardware but no in software (audio panel windows xp).
If i desacti've the LINE IN 2 in audio panel of windows XP, the mic don't working (no hear) but if i desactivate Microphone, he work normally... (but for the two solution, windows xp don't receive any signal)
No idea ?
Message Edited by Claymenia on 04-20-2008 02:28 AM

Illustrator cc2014 open dialog box won't work yosemite

I have a Macbook Pro Retina 2014 with a fresh install of Yosemite and Creative Cloud, after a while, when I used the open dialog box for 4 or 5 times to open documents, that dialog box won't work anymore, I have to quit and reopen the Illustrator application, the shortcut won't work either. Is anybody got that problem before?
When I was on Mountain Lion, I never got this problem, I presume it's related to Yosemite.

Gelouis,
I believe it is a bug in CC2014, appearing when you have the Illustrator open/place dialogue set to column view and sort by date or sort by kind. You may change it to view by name or list view.
https://forums.adobe.com/message/7145022#7145022
https://forums.adobe.com/thread/1723170
https://forums.adobe.com/message/7183002#7183002
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Can not open front panel sub VI when running an application VI.

When I create an application of my program a problem occurs. When I select options (press a button or so) from the main front panel that should result in a popup menu (sub VI cal) LabVIEW indicates that something is happening but the front panel does not open. The mouse indicator changes to the time glass so LabVIEW is doing something but the window of the sub VI does not open.
The problem has the same characteristics on several places. There are some sub VI front panels that opens but I ca not find the reason for why these open and not other.

Hi
there are three ways trhough which you can force a subVI to show its front panel
1. open the perticular SUB VI
click File->VI properties select window appearence catagory.
click customize button and select "Show Front Panel when called" and "close afterwads if originally closed" check boxes
save the VI
whenever you use this Sub VI every time it will pop up front panel
2. dont perform the changes suggested in option 1. place the instance of subVI in your main application and if you want that instance to popup a front panel then right click on subVI and Select "SubVI Node Setup" again select "Show Front Panel when called" and "close afterwads if originally closed" check boxes
with this option only certain instances of SUB VI will cause pop up to occur
3. this is the most flexible option. use invoke node to show front panel. in invoke node select show front panel method to popup the VI and use close front panel method to close the pop up window.
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[email protected]
Jambhekar Automation Solutions
LabVIEW Consultancy, LabVIEW Training
Rent a LabVIEW Developer, My Blog

LV8.0 Auto-print front panel doesn't work

On the front panel in VI Properties/Print Options the 'Automatically print front panel every time VI completes execution' is cleared when you exit the VI Properties dialog and return to it. Consequently, you can't get the front panel to print by checking this option.
Brent

Bshu,
You're absolutely right. That functionality is faulty. A work around may be to use the operate>>print at completion function. FYI: if you enable this property, the VI Properties/Print Options the 'Automatically print front panel every time VI completes execution' turns black. R&D is aware of both of these problems. Thank you for you're very valuable feedback and post to let us know if there's anything else we can help out with.
Best Regards,
Chris C
Applications Engineering
National Instruments
Chris Cilino
National Instruments
LabVIEW Product Marketing Manager
Certified LabVIEW Architect

Dynamically opened front panel won't work in executable

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