How to programmatically load and show the front panel of a vi but NOT run it?

Is there a way to load and show the front panel of a vi but NOT run it? I am starting with the AsynchronousCallAndForget.vi from the example finder and inserted an invoke node with the FP Open method call prior to the Start Asynchronous Call node. The vi I am loading has the "Run when opened" unchecked and the menu bar IS visible so I can manually click the run arrow. Thanks!
Solved!
Go to Solution.

Why are you using the Async call? If you simply open the VI reference, then call the FP.Open method this works fine. You can then call the VI run method with Wait Until Done set to false if you wish to run it Asynchronously, this is how we did it in ye olde days before we had this new fangled "Start Asynchronous Call" stuff.
Charles Chickering
Architecture is art with rules.
...and the rules are more like guidelines

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I am trying to create an executable vi that will call out another vi and show its front panel in the executable. When I try this I recieve this error message "top level vi (my main vi) was stopped at unknown on the block diagram of (my sub vi)

I am trying to create an executable vi that will call out another vi and show its front panel in the executable. When I try this I recieve this error message "top level vi (my main vi) was stopped at unknown on the block diagram of (my sub vi)

Well the most common way is to enclude the vi's in the build spec either directly in the dependancies that the App builder automatically generates OR by declaring them in the build spec as "additional enclusions" (like you must do for dynamic vi calls in your app.
I have heard rummors about My.app Stuff.vi in a nugget Intaris posted- and I've wanted to dig deaper into Intaris' claims- but have not tried it myself.
If you go down the stuff.vi route Keep us curious guys posted
Jeff

How to show the front panel when launching VI with Call by reference node??

Hello!
I just wonder how I make the front panel visible during execution when I launch the VI with CALL BY REFERENCE NODE.
Se example.
Could u also show me how to change different properties (window size ..) of the front panel??? (launched with CALL BY REFERENCE NODE)
Thank you!
Attachments:
test.vi ‏18 KB

In VI Properties>>Window Apperance>>Customize you can check "Show front panel when called". This will open the front panel on each call. It doesn't matter how the call was initiated.
You can set a lot of Front panel properties during runtime. Place a Property Node in the block diagram. Change the class from App to VI. Under properties select Front Panel window>>Panel bounds to set the position and size of the front panel.
Waldemar
Using 7.1.1, 8.5.1, 8.6.1, 2009 on XP and RT
Don't forget to give Kudos to good answers and/or questions

How to bring of subvis to the front panel of main vi?

I am working on a simulaton project where a PID control toolkit is used to controla process .How can I access the controls of this PID controller when I execute the main VI ?

I'm not sure I understand. The PID VIs I know run within your code on a loop basis. In every iteration of the loop they run using the values you input and output the proper values. So, to input values, you simply wire controls into them. Regardless of this, to open the front panel of a VI, you need to get a reference to that VI (using open VI reference) and wire that reference into a property node (both can be found in the Application Control palette).
Select the Front Panel>>Open property, wire T into it and the FP will open. You can also set the VI to have its front panel open when called in File>>VI properties.
Try to take over the world!

I want to save an image of the front panel, (with data), after every VI run

When I try to copy the front panel (using a select all), and paist to paint, all the data in the graphs show up as they did after the last run, but the data in the charts dissapear. The chart itself is copied but the data is not. Any ideas on how to solve this?
Thanks,
Brian
Attachments:
Brians_graph_compilation2.vi ‏1363 KB

This Knowledgebase also has some information on programatically saving VI images
http://digital.ni.com/public.nsf/websearch/942DAA35C7B35616862565FE005F713F?OpenDocument
(KB 197BB7VJ if the link doesn't work).
Note that you don't have to put the code in the VI you are running in order to save it to a file, so you don't actually have to modify your VI. You can just run a seperate VI that uses the VI name from the first one (I've attached a VI which could either be run standalone or used as a SubVI, as well as an example of using it as a SubVI).
If you don't want to do it programatically you could just hit the print screen button on your keyboard and then paste it into paint and crop off the extra windows stuff.
Attachments:
CreateVIJPEG.vi ‏34 KB
ImageExample.vi ‏24 KB

TS1717 What do I have to do to keep the iTUNES program on my computer BUT NOT RUNNING on Start UP? It requires too much CPU usage on my old computer.

What do I have to do to keep the iTUNES loaded as a program on my computer BUT NOT RUNNING on Start UP? Just opening when I want to use it.
It requires too much CPU usage on my old computer.

You can check you Adobe account online to see if the serial number is registered under your account. If not then your only option will likely be to contact Adobe Support directly thru chat to see if they can provide you with a/the serial number. For them to do so will require you being able to prove ownership.
Serial number and activation chat support (non-CC)
http://helpx.adobe.com/x-productkb/global/service1.html ( http://adobe.ly/1aYjbSC )

Able to interact with a cRIO remote front panel from one computer but not another

I have a cRIO application that publishes a remote front panel for monitoring and control of the application. From one PC (Win7 & firefox) I can see, interact and control the cRIO through the published remote front panel. From a second PC, also Win7, I can see and monitor the cRIO's state, but the remote panel that is opened does not allow for any interaction and this is true whether I'm using IE, FF or Chrome as the browser. When either PC is connected to the cRIO, it is via a dedicated Ethernet link and only the cRIO and the one PC are on that network. For this two-device private network, the PC is always at address 192.168.1.1 while the cRIO always uses 192.168.84.199 (port 8000).
The firewall rules on both PCs are setup to allow all incoming and outgoing programs/ports/protocols to be used between these two IP addresses.
Both PC's have up-to-date LabVIEW development systems installed on them (which more or less guarantees they have the minimum require LV runtime needed to see and use a remote front panel).
What might be different on the PC that view but cannot interact with the remote panel?
Solved!
Go to Solution.

Sam_Sharp wrote:
Right click on the second one and select "take control of this VI".
As far as I am aware - only one viewer of the remote front panel can control the panel at any time - the rest can only view.
As I tried to say in my original post, there was only one host physically connected to the private network at any given time (by virtue of the fact that the one Ethernet cable connection to the private network was being moved back & forth between the two hosts) so there was no way both hosts could be trying to control the cRIO at the same time. I even went so far at one point of restarting the cRIO while it was connected to the problem host to see if would render it functional, but it did not.
But I did not know that it was possible to do what you suggested, much less that there was a right-click context menu associated with a remote panel, so I tried it and it worked! Thank you!

I have a G4 MacBook Pro and I just updated Firefox; it will not load the new Firefox and gives me an error code 10661; how do a load and use the new updated Firefox?

I am currently using Firefox 3.6.9
My operating system is Mac OX 10.4.11
I have downloaded the most recent update for Firefox and it won't load.
How do I load this recent update?

See also:
*http://kb.mozillazine.org/Firefox_crashes
*http://support.mozilla.com/kb/Firefox+crashes+when+you+open+it
Do a malware check with some malware scanning programs.<br />
You need to scan with all programs because each program detects different malware.<br />
Make sure that you update each program to get the latest version of their databases before doing a scan.<br />
<br />
* http://www.malwarebytes.org/mbam.php - Malwarebytes' Anti-Malware
* http://www.superantispyware.com/ - SuperAntispyware
* http://www.microsoft.com/windows/products/winfamily/defender/default.mspx - Windows Defender: Home Page
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* "Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked

How to display conditional things on the front panel ??

Hello,
What I am trying to do is this: The user will select some information from a combo box, and depending upon twhat he has selected I want to display different things based on his selection.
Any help will be appreciated.
Thanks,
Bira_pxi

You can programmatically change the visibility of any object using property nodes with the "visible?" property.
If the groups of elements are similarly arranged, use a tab indicator (place tab control...change to indicator) and place each group of FP elements on it's own tab. Now hide the tabs and select the active tab programmatically by writing the desired state to the tab indicator.
Another option is the use of subpanels.
Message Edited by altenbach on 08-16-2007 04:11 PM
LabVIEW Champion . Do more with less code and in less time .

How do I create an embedded application and view the front panel on my host?

I have created a vi na dhave broken this down inot three components using RT comms wizard. How do I create the embedded VI part (exe) and then communicate with this via my host PC?

Try building NPL***.vi into an exe while targeted. This will download NPL as an exe to the startup folder of your target. Now switch back to the host and build Host***.vi.
You'll have two exes - 1 for the target side and 1 for the host side.

Hi. I want to build a GUI based on several windows appearing following a certain sequence. How can i create different windows in the same VI? Also, i want the front panel of a subvi to appear when i run, how can i enable this.Thanks

Having several windows appear ...

Hi,
You can't create several windows for one VI. But you can use the "Tab Control" and change tab's in the program. Or you can use sub VI's and show ther front panels.
To show the front panel of a sub VI you have to open the VI you want to show and select "File->VI Properties". In the VI Properties window select Category "Window Appearance" and click Customize...
In the Customize Window Appearence window, here you can set a number of attributes for how the window will appear, select "Show front panel when called" and "Close afterwards if originally closed" click OK and OK and save the VI, done.
Now the VI front panel will appear then you use it as a sub VI.
/Thomas

How to run a subVI without poping up normally, but when clicking a button, popup the front panel?

I know pop-up the front panel of a subVi when called by selecting VI Properties>>Windows apperence.
But what I need to do is: always run the SubVI inside the parent VI as the nornal subVI do without poping up. But when I click a button"show front panel", the SubVI popup the front panel.
Is there anyway to do this?
Thanks,

ossoo,
You can use a static VI reference to the subVI and then use the Front Panel Open invoke method to show the front panel when you want. I have attached two VIs that show this. I saved these VIs for LabVIEW 2009 so you should be able to open them up and run them in 2009 or later. Add.VI is the subVI that you are calling. The Caller.VI is just a While Loop that contiually calls the Add subVI. Inside of the While Loop is also a Case Structure with a Static VI Reference (you might need to change the path this is pointing to after downloading the VIs to your computer for this to work) and the Front Panel Open invoke method. You can run the Caller.VI and interact with the main Front Panel as normal and see the subVI but then you can click the Open subVI? boolean button and it will open the subVI's front panel. You can continue to interact with the main front panel and see the values update on the subVI's front panel as well. You can just close the subVI's front panel when you are done viewing it. Does this help?
Grant H.
National Instruments
LabVIEW Product Marketing Manager
Attachments:
Caller.vi ‏19 KB
Add.vi ‏23 KB

Can you connect a iPad USB port into a TV and show the videos you play?

Can you sue the USB to plug into a TV and show the videos?

Sorry I meant USE not SUE.

Is there a trick get around physical bundling of items on the front panel?

Ok - so I appreciate how bundling items on the front panel into a cluster can make the programmatic code very slick and easy to access.
I know this is completely obvious - but it forces me to arrange my front panel objects I would prefer not to arrange them. Here's why: I have my objects grouped together in a manner that reduces the number of datasocket read/write necessary for VIs to intercommunicate - they are grouped based on how they should be communicated to other VIs - not based on their physical arrangement on the front panel.
It seems the only way I can organize my objects into a cluster that appears as a pink control/indicator block in my diagram is by assembling
the objects into a cluster on the front panel... and this pink block is very useful as I can make local variables for it. This is much simpler than having all the controls and indicators bundled into a cluster for network transfer... but still having to use local variables for each control/indicator in order to use it elsewhere in the diagram.
Ugh. I fear this message is too much rambling and not enough information for anyone to help me... I'm going to post it in the hopes that someone can follow me.
I guess before I submit this I should remind you of what I was hoping to accomplish - to use the front panel to group objects but then skirt the requirement of keeping this objects in the same physical cluster box on the front panel.
again, ugh,
Jim

Place all your front panel objects the way you want them then in the block
diagram use the Bundle by Name vi to create a cluster.
Kelly
"dingler44" wrote in message
news:[email protected]..
> Ok - so I appreciate how bundling items on the front panel into a
> cluster can make the programmatic code very slick and easy to access.
> I know this is completely obvious - but it forces me to arrange my
> front panel objects I would prefer not to arrange them. Here's why: I
> have my objects grouped together in a manner that reduces the number
> of datasocket read/write necessary for VIs to intercommunicate - they
> are grouped based on how they should be communicated to other VIs -
> not based on their physical arrangemen
t on the front panel.
> It seems the only way I can organize my objects into a cluster that
> appears as a pink control/indicator block in my diagram is by
> assembling the objects into a cluster on the front panel... and this
> pink block is very useful as I can make local variables for it. This
> is much simpler than having all the controls and indicators bundled
> into a cluster for network transfer... but still having to use local
> variables for each control/indicator in order to use it elsewhere in
> the diagram.
> Ugh. I fear this message is too much rambling and not enough
> information for anyone to help me... I'm going to post it in the hopes
> that someone can follow me.
> I guess before I submit this I should remind you of what I was
> hoping to accomplish - to use the front panel to group objects but
> then skirt the requirement of keeping this objects in the same
> physical cluster box on the front panel.
>
> again, ugh,
> Jim
>

Can i place controls from the properties dialog of an express vi on the front panel?

I'm using the spectral measurements express vi in my vi and I'd like to put the "window" and "number of averages" controls from the properties dialog on the front panel. However, there are not outputs on the express vi icon for these parameters. Can I place controls for these on the front panel somehow or do I always have to go into the block diagram and open the properties dialog to change the values?

The way to do this is to right click on the express VI and select Open Front Panel. This will convert it to a standard subVI. then go into the subVI and replace the Spectrum Averaging and Spectrum Window constants to front panel controls by right click on them. Right click the icon and select Show Connector. Wire the new controls to a free terminal on the connector. You may have to add additional terminals if there aren't any available to wire to the new controls.

How to programmatically load and show the front panel of a vi but NOT run it?

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