References won't close in UserMessage Event Callback example.
I download the following example:
http://zone.ni.com/devzone/cda/epd/p/id/2606.
I was going to use some of the features of this example to pass variables from my OI to TestStand. Well unfortunately, this example with the modified UserMessageCallback locks up everything with an R6025 error. Well, it actually will also give me the Property Object warning dialog ONLY if I have the Debug Options set within the Station Options->Preferences tab set to report Object Leaks, otherwise I get the R6025 error. Only solution is to go to Task Manager and close out LabVIEW.
I attached a picture of the callback, I believe I am closing ALL possible references. I don't understand why TestStand still thinks that the SequenceContext reference is open? Is there something I have to do special to close the SequenceContext reference because of the Variant to Data function?
I am running TestStand 4.2.1 and LabVIEW 2010.
Thanks,
PH
Attachments:
UserMessage Event Callback.png 53 KB
Debug Warnings.PNG 19 KB
R6025 Error.JPG 12 KB
The original example failed, hence it did not work Again, it did not work with TS 4.2 and LV 2010.
All I was trying to do is use that example, to pass data from my Operator Interface to TestStand using the SequenceContext. It was mentioned as an example in a previous post here:
http://forums.ni.com/t5/NI-TestStand/Passing-Variable-from-Operator-Interface-to-Process-Model/td-p/...
I attempted to add a fix for the Variant to Data function per reference to the KB, proposed by Anand Jain, in the previous posts!
In the long run, I will have to go with the method proposed by Ray Farmer. 'The simplest way is just store it in the StationGlobals.' Not exactly the method I prefer to use, but it seems to be working.
Thanks,
PH
Similar Messages
-
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 KBBasically 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. -
Problem with register event callback in use of instrument control
now, i use the register event callback to register a value change of a boolean control on the front panel, and wire the cluster's ref of the instrument control parameters to the user parameter input, then create the callback vi. In the callback vi, i select the pump-control subvi, and pass the user parameter to the subvi. The problem is that, when i press the boolean control, the instrument (here is pump) can act, but immediately, the code crashes.
I use labview 8.6
Attachments:
callback vi.png 8 KB
register event callback.png 8 KBYou would wire the event registration wire that comes out of the Register for Events node into an event structure. You will need to right click on the event structure and check off "Show Dynamic Event Terminals" and it into that. Then you can create a new Event Case that uses the dynamic event. You can place your subVI in that event in whatever way you want. (Just drop the subVI in or do a Call by Reference there, or whatever.) Look in the Example Finder for "Dynamically Register for Events.vi".
-
How to place event callback components and "main-VI" components in the same Front Panel?
What I'm trying to accomplish:
Place a .NET component, which generates events, and other standard LabVIEW components in the same Front Panel. The standard LabVIEW components should be updated when events are being generated in the .NET component.
How I tried to solve it:
Problem:
The event callback code must reside in a separate event callback VI. In order to "pass the event up" to the main VI I tried to use a global variable. The interrupt does occur:
but I was hoping that the string indicator would be updated when the event occurred, but it wasn't.
Questions:
What's the best way to solve what I try to accomplish? If I want to solve the problem on the picture above, how would I do it (it may not be the best solution, but I'm still curious what's wrong)? Please feel free to be over-explicit when replying as I am novice LabVIEW programmer. Thanks in advance for any help.There are two bundle functions for creating clusters. The function simply called Bundle operates almost exactly like the Build Array function I showed. The type of the output cluster depends on whatever you wire in as inputs. You don't have to supply a specific type parameter.
The function called Bundle by Name takes in a specific type of cluster in the top input and allows you to fill in the values of that specific type of cluster. To create the specific type of cluster you want, you need to create a cluster of string references. Here's how to do that:
Go to the Front panel and drop down an empty cluster shell.
Go to the Refnum palette and drop down a Generic Control Refnum. Now here's a cool trick to turn that generic refnum into a string-specific refnum (a so-called strictly-typed refnum). Grab a string from the controls palette and drag it into the Generic Control Refnum. Once you drop it, you'll see the refnum change its icon to display a string picture.
Make copies of this string refnum (as many as you need) and add it to the cluster shell.
Now, if you're making specific types of clusters to work with, now is the absolute best time to learn about typedefs if you haven't already. It will save you hours and hours (if not days) of development time in the future. Trust me!
Jarrod S.
National Instruments -
Windows won't close; app won't exit
Hi,
After some system admin (on Solaris 2.7) my Swing GUI application won't terminate and the main window won't
close. My code in my main window is:
addWindowListener(new WindowAdapter()
public void windowClosing(WindowEvent e)
System.exit(0);
I have to do 'ps' and 'kill -9 <pid>'. The same behavior occurs w/ the Swing Java tutorial apps; e.g.,
I only added a System.out.println("Window closing event captured") in the ListDemo.java src. WHen I close the
main window, I see this string displayed but the window
doesn't close (or it starts to, goes blank) and the app
doesn't exit.
I'm fairly certain it's an environmental problem, but
am stuck as to what to investigate. If anyone has
seen this behavior and could shed some light, I'd be
appreciative...
Thanks,
MarciaI tried doing this: In the tutorial's ListDemo.java src, I replaced the entire WindowAdapter() code block with one line:
frame.setDefaultCloseOperation(frame.EXIT_ON_CLOSE);
This didn't help (w/ either JDK 1.4.0 or JDK 1.4.1, on
Solaris). The app still doesn't terminate. The xterm from which I launched the app isn't responding to control-C. I have to kill the xterm. Also, if I can't write a WindowAdapter, how can I do some other stuff
(like closing network connections, etc.) before exiting?
Thanks for the help; any further suggestions would be welcome. -
Event Callback Problems during compilation
Hi
I try to register a callback vi with the "Register Event Callback"-node. I
pass a reference of an array as user parameter into to the "Register Event
Callback"-node. Everything works well in the development environment. But
when I try to build an executable I get the Error "1003 . The vi is not
executable".
What is wrong?
MareikeHello Mareike,
you can surch in the http://www.ni.com/support/ for "error" and "1003". There you will find a lot of links where this error is discussed. With a little luck, there will be an answer.
Regards ThomasD -
Event Callback from a Reentrant VI Recursion Error
Greetings,
I am using Register Event Callback with an ActiveX object to respond to user mouse events. The problem is that when I run the VI (the main, calling vi) as reentrant, Labview gives an error that the "Callback.vi" is attempting to recursively call "Main.vi".
Is there a way around this problem? I intend to run two copies of "Main.vi", so reentrant execution seems necessary.
- Colin HolbrookHi Colin,
Are you placing the Register Event Callback inside of the Main VI and then wiring the same Main VI to the VI Reference terminal? If so, then that explains why you are getting an error. You cannot use the Register Event Callback to call a VI within itself. If this is not the case, then please post a simple VI that demonstrates the problem. -
Recursive ActiveX register event callback VI
Hi!
I am trying to control a motor in LV2013 using the ActiveX concept. When I use a "register event callback VI" function, can I call the same VI that calls a VI (with the "stop rule" controlled be the user data terminal, of course, inside)? By default, callback Vis that one can create for this are all reentrant (preallocated clone) and synchronious (according to help). However, both when I use the "server VI reference" ("This VI") and when I create a reference and browse for the same file - "register event callback" shows me a broken wire._Basil_ wrote:
As far as I understood, putting a movement method in the loop will not give any result, so I tought in the direction of the recursive callback. However, I found this post. Would you in general agree that the callback VI cannot be recursive? I attach my code in LV13 (if you need me to convert, I will)
Sorry, I'm still on LabVIEW 2012 here, so can't look at your VIs. I don't understand your comments in these sentences though. What do you mean by putting a movement method in a loop will not give any result? And why would you ever want a recursive callback? The callback is called each time the event occurs. There's no sense in making it recursive, nor would you want to re-register for a callback on an event inside a callback VI. Normally a callback should contain very little logic; it should primarily pass some piece of information (through a queue, user event, etc) back to the main thread and let the main logic handle it. -
Configure Event Callbacks in test stand using labview
Hi,
I was going through Full OI - Configure Event Callbacks.vi in the test stand example. Can you please explain me how the vi works and what is techniwue behind it?
When i open the individual VI's in the reference, I could see more that 1 control in the front panel. But Only the user parameter is wired in the vi? Why is it so?
Regards
GopalHi Gopal,
When the TestStand Engine fires events, this VI specifies how your Operator Interface will respond. For example, let's examine the first event callback registered in Full OI - Configure Event Callbacks.vi , Exit Application. When the TestStand Engine receives the message to shutdown, and then finishes its neccessary shutdown procedures, it will send a message to the Operator Interface. For the Operator Interface to receive this message, it must "listen" for it. In LabVIEW, this is done by Registering an Event Callback. See the links below for details on how to implement this.
The answer to your specific question is in step 7 of the first link below. When TestStand sends the message to LabVIEW, there is information that is always passed. The other input controls contain this information. To create a VI that always includes these controls, right-click on the VI Ref input to the Reg Event Callback Property Node, and then select Create Callback VI.
Here are two references that talk about handling ActiveX callbacks in LabVIEW in general:
Registering and Handling .NET and ActiveX Events
Register Event Callback (Not in Base Package)
Cheers,
David Goldberg
National Instruments
Software R&D -
Alert "Power sub-system degraded or failed" won't close automatically after power restores
we have SCOM R2 and HP server in use.
we installed HP server MP.
each server has two power suppliers, one to UPS, one to Commercial power.
but there is always Commercial power outage, after which alert "Power sub-system degraded or failed" will arise.
when power restores, this alert won't close automatically.
Below please find alert properties,
there is no "Aoto-resolve" attribute, I suppose this is the reason why this alert won't close automatically after power restores.
but I want this alert to be closed automatically by SCOM after power restores, could anyone help me?It looks like this particular alert is generated by a rule, and that rule simply generates an alert whenever certain events are detected in the event log. A rule that alerts on the creation of an event does not have the ability to close based on the
detection of a second event.
If this is the behavior you are looking for you would be best to create your own monitor as opposed to this rule, as you can create a custom monitor that alerts on one event or events and closes when another event or events are logged indicating things are
healthy again.
Once you have your custom monitor setup, you would then want to disable this rule that was built into the hp management pack. You can also look to see if the hp mp has any contact info that you can reach out to and ask for this feature to be included
in the next update of the mp, but for now i think your best option is to create a custom monitor that alerts on one event and closes on another. -
whenever I open my yahoo mail when using Firefox, a pop up box appears on the upper left side of the screen, it asks the question "do you use the yahoo! toolbar on multiple computers?" and gives click boxes for "Save to my yahoo ID" and "No thanks, just save to this computer". I get no response to clicking on either box, nor will the pop up close if I click on the "X" in the upper right corner of this pop up. It won't close out and it sits right over the top of the email messages in my inbox. All else seems to work fine, but can't get rid of this pop up box....very annoying.
go mail.yahoo.com as the login entrance for yahoo mail.
-
After syncing and updating my iphone my iCalendar on my computer lost most of my information. Including wiping out an entire calendar group. When trying to readd the calendar group it won't let me add events to my calendar under that category. A message pops up that says: "You can't add events or to do items to a calendar group. Select an individual calendar in the calendar list, then create your events or to do items." Any help here would be greatly appreciated! I would like to either retrieve the old information or find a way to add the category back in to start over. Thanks in advance!
hi i had the same problem today when i updated my itunes to latest version. however, i have just found my songs in the 'itunes media' folder. this was accessed through 'my music' then keep clicking through until you find itunes media and all my library songs were in there and i then just added these files to my library and all were restored however, i have lost all my playlists but at least my 700 songs are back. very dissapointed with apple that they have let this happen with their latest update, the previous version was miles better than this one . hope you find them. stevo
-
Adobe Premiere Elements 10 takes about 6 minutes to open but then won't close
My old computer died so I am installing my Adobe Premiere Elements 10 on my new laptop with 8 gb Ram, 1 tb storage and Windows 8.1. When I click on the icon to open it it can take up to 5-6 minutes to open and if it does, when I try to close it, it won't close. I just get programs fails to respond. Can any body help me?
csu
What video card is your Windows 8.1 (assumed 64 bit) computer using? NVIDIA GeForce or other?
Please check the Device Manager/Display Adapters to confirm the video card/graphics card and how many cards.
Is the card driver version up to date according to the web site of the manufacturer of the card?
Are you working from a User Account with Administrative Privileges? And, do you have QuickTime (latest version) installed on
the computer with Premiere Elements?
Are you using a pen and tablet device instead of a mouse?
Does the problem exist with and without the antivirus and firewall(s) disabled?
Please consider the above and then we can decide what next.
Thank you.
ATR -
When I click on a tab to close it I can see the red X press down but it won't close. I can open a new tab and I can click from tab to tab and the windows change. My mouse is working on every thing else, just can't close any tabs. There are six tabs open. This has been an ongoing.problem that seems to be getting more frequent. I usually do a restart and the problem goes away, but only for a short time. I don't
know where to start to fix it. I did notice the automatic updates in windows is turned off. Could that be part of the problem? Should it be turned on? I'm using Windows XP Professional version 5.1.2600 service pack 3. Firefox version 36, just refreshed. Any suggestions?
* Firefox 35.0 *Updated to Firefox 36.0 2/24/15*
* Windows XP Version 5.40.2.0 service pack 3
* Google Update
* NPRuntime Script Plug-in Library for Java(TM) Deploy
* Next Generation Java Plug-in 11.31.2 for Mozilla browsers
* DRM Store Netscape Plugin
* DRM Netscape Network Object
* Shockwave Flash 16.0 r0
* Npdsplay dll
* iTunes Detector Plug-in
* Pop up blockers: onI'm having this problem also, but I'm currently in safe mode and it's still happening, so I know it's not an addon.
'''Troubleshooting Information''':
(I'm running Win7 Pro, SP1, 64b.)
Application Basics
Name: Firefox
Version: 36.0.1
User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:36.0) Gecko/20100101 Firefox/36.0
Multiprocess Windows: 0/2
Crash Reports for the Last 3 Days
All Crash Reports
Extensions
Name: Clearly
Version: 10.2.1.7
Enabled: false
ID: [email protected]
Name: Disconnect
Version: 3.15.3
Enabled: false
ID: [email protected]
Name: Feedly Notifier
Version: 2.10.0
Enabled: false
ID: jid1-BOjn8b0IM7kH2w@jetpack
Name: Flash Video Downloader - YouTube HD Download [4K]
Version: 7.2.0
Enabled: false
ID: [email protected]
Name: HTTPS-Everywhere
Version: 4.0.2
Enabled: false
ID: [email protected]
Name: LastPass
Version: 3.1.92
Enabled: false
ID: [email protected]
Name: Max Tabs
Version: 0.2
Enabled: false
ID: maxtabs@cheeaun
Name: NoScript
Version: 2.6.9.19
Enabled: false
ID: {73a6fe31-595d-460b-a920-fcc0f8843232}
Name: Page Title in URL Bar
Version: 5.0.2
Enabled: false
ID: [email protected]
Name: Pushbullet
Version: 179
Enabled: false
ID: jid1-BYcQOfYfmBMd9A@jetpack
Name: Stylish
Version: 2.0.2
Enabled: false
ID: {46551EC9-40F0-4e47-8E18-8E5CF550CFB8}
Name: tabTooltip
Version: 1.1
Enabled: false
ID: [email protected]
Name: TinEye Reverse Image Search
Version: 1.1
Enabled: false
ID: [email protected]
Name: Xmarks
Version: 4.3.5
Enabled: false
ID: [email protected]
Name: µBlock
Version: 0.8.6.0
Enabled: false
ID: {2b10c1c8-a11f-4bad-fe9c-1c11e82cac42}
Graphics
Adapter Description: Intel(R) Q965/Q963 Express Chipset Family
Adapter Drivers: igdumd64 igdumdx32
Adapter RAM: Unknown
ClearType Parameters: Gamma: 2400 Pixel Structure: R ClearType Level: 100 Enhanced Contrast: 50
Device ID: 0x2992
Direct2D Enabled: Blocked for your graphics driver version.
DirectWrite Enabled: false (6.2.9200.16492)
Driver Date: 9-23-2009
Driver Version: 8.15.10.1930
GPU #2 Active: false
GPU Accelerated Windows: 0/2 Basic (OMTC) Blocked for your graphics driver version.
Subsys ID: 2808103c
Vendor ID: 0x8086
WebGL Renderer: Blocked for your graphics driver version.
windowLayerManagerRemote: true
AzureCanvasBackend: skia
AzureContentBackend: cairo
AzureFallbackCanvasBackend: cairo
AzureSkiaAccelerated: 0
Important Modified Preferences
accessibility.typeaheadfind.flashBar: 0
browser.cache.disk.capacity: 358400
browser.cache.disk.smart_size.first_run: false
browser.cache.disk.smart_size.use_old_max: false
browser.cache.frecency_experiment: 3
browser.newtab.url: about:blank
browser.places.smartBookmarksVersion: 7
browser.search.useDBForOrder: true
browser.sessionstore.upgradeBackup.latestBuildID: 20150305021524
browser.startup.homepage: google.com
browser.startup.homepage_override.buildID: 20150305021524
browser.startup.homepage_override.mstone: 36.0.1
browser.tabs.closeWindowWithLastTab: false
browser.urlbar.default.behavior: 0
dom.max_chrome_script_run_time: 0
dom.mozApps.maxLocalId: 1011
dom.mozApps.used: true
extensions.lastAppVersion: 36.0.1
font.internaluseonly.changed: true
gfx.direct2d.disabled: true
layers.acceleration.disabled: true
media.gmp-gmpopenh264.enabled: true
media.gmp-gmpopenh264.lastUpdate: 1423277131
media.gmp-gmpopenh264.version: 1.3
media.gmp-manager.lastCheck: 1426961929
network.cookie.prefsMigrated: true
places.database.lastMaintenance: 1426961930
places.history.expiration.transient_current_max_pages: 53460
plugin.disable_full_page_plugin_for_types: application/pdf
plugin.importedState: true
plugin.state.flash: 1
plugin.state.npdeployjava: 0
plugin.state.nppdf: 0
plugin.state.npwcx: 1
print.printer_PDFCreator.print_bgcolor: false
print.printer_PDFCreator.print_bgimages: false
print.printer_PDFCreator.print_colorspace:
print.printer_PDFCreator.print_command:
print.printer_PDFCreator.print_downloadfonts: false
print.printer_PDFCreator.print_duplex: 1515870810
print.printer_PDFCreator.print_edge_bottom: 0
print.printer_PDFCreator.print_edge_left: 0
print.printer_PDFCreator.print_edge_right: 0
print.printer_PDFCreator.print_edge_top: 0
print.printer_PDFCreator.print_evenpages: true
print.printer_PDFCreator.print_footercenter:
print.printer_PDFCreator.print_footerleft: &PT
print.printer_PDFCreator.print_footerright: &D
print.printer_PDFCreator.print_headercenter:
print.printer_PDFCreator.print_headerleft: &T
print.printer_PDFCreator.print_headerright: &U
print.printer_PDFCreator.print_in_color: true
print.printer_PDFCreator.print_margin_bottom: 0.5
print.printer_PDFCreator.print_margin_left: 0.5
print.printer_PDFCreator.print_margin_right: 0.5
print.printer_PDFCreator.print_margin_top: 0.5
print.printer_PDFCreator.print_oddpages: true
print.printer_PDFCreator.print_orientation: 0
print.printer_PDFCreator.print_page_delay: 50
print.printer_PDFCreator.print_paper_data: 9
print.printer_PDFCreator.print_paper_height: 11.00
print.printer_PDFCreator.print_paper_name:
print.printer_PDFCreator.print_paper_size_type: 0
print.printer_PDFCreator.print_paper_size_unit: 1
print.printer_PDFCreator.print_paper_width: 8.50
print.printer_PDFCreator.print_plex_name:
print.printer_PDFCreator.print_resolution: 1515870810
print.printer_PDFCreator.print_resolution_name:
print.printer_PDFCreator.print_reversed: false
print.printer_PDFCreator.print_scaling: 1.00
print.printer_PDFCreator.print_shrink_to_fit: true
print.printer_PDFCreator.print_to_file: false
print.printer_PDFCreator.print_unwriteable_margin_bottom: 0
print.printer_PDFCreator.print_unwriteable_margin_left: 0
print.printer_PDFCreator.print_unwriteable_margin_right: 0
print.printer_PDFCreator.print_unwriteable_margin_top: 0
privacy.cpd.offlineApps: true
privacy.cpd.siteSettings: true
privacy.donottrackheader.enabled: true
privacy.donottrackheader.value: 1
privacy.sanitize.migrateFx3Prefs: true
privacy.sanitize.timeSpan: 0
storage.vacuum.last.index: 1
storage.vacuum.last.places.sqlite: 1426532242
Important Locked Preferences
JavaScript
Incremental GC: true
Accessibility
Activated: false
Prevent Accessibility: 0
Library Versions
NSPR
Expected minimum version: 4.10.7
Version in use: 4.10.7
NSS
Expected minimum version: 3.17.4 Basic ECC
Version in use: 3.17.4 Basic ECC
NSSSMIME
Expected minimum version: 3.17.4 Basic ECC
Version in use: 3.17.4 Basic ECC
NSSSSL
Expected minimum version: 3.17.4 Basic ECC
Version in use: 3.17.4 Basic ECC
NSSUTIL
Expected minimum version: 3.17.4
Version in use: 3.17.4
Experimental Features
--------------------- -
I can't close the left hand tab except by exiting firefox. When i launch firefox the original tab stays open when I click on the red x, even if I have other tabs open.
i can alter the website displayed on the left hand tab but it still won't close and leave other more recent tabs open.Start Firefox in [[Safe Mode]] to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
* Don't make any changes on the Safe mode start window.
See:
* [[Troubleshooting extensions and themes]]
Maybe you are looking for
-
The Volume Shadow Copy service initially was running under the context of System, so we thought that 'System' doesn't have permissions to access network shares. When the Volume Shadow Copy service was running under the context of System, this was th
-
I recently upgraded to the latest version of iTunes (6.0.5.20) ever since then, I try to open iTunes and all I get is the following error...."The Folder "iTunes" can not be found or created, and is required. The Default location for this folder is in
-
Absolete Function Modules for ECC 6.0
Hi guys, iam doing upgrade project, i want know absolete for this function modules CALL FUNCTION 'NAMETAB_GET' EXPORTING TABNAME = 'BKPF' TABLES NAMETAB = HNAMTAB EXCEPTIONS OTHERS = 0. CALL FUNCTION 'WWW_USER_AUTH_MESSAG' plz give me suggestion for
-
How to keep a webclip in Demo mode
Is this possible? Demo mode would certainly revert the whole iOS regardless of any changes made to the device, however, we'd like to see if we can still keep a webclip for presentation purposes (this would mean that the web clip is still kept to the
-
Variance key default in production order
how do i set up my production order in such a way that when i create the order, it automatically proposes the variance key in the control data tab?