Make LV VI front panel appear

I am a TestStand newbie. I want to make a dialog box with LabVIEW. I am using the sequence editor. I have made a very simple VI with two controls and an OK button. There is an event structure which triggers when the OK button is pressed. The problem is that when the vi is started, it does not automatically make the front panel of the vi visible. I want to make the front panel visible and appear in front of the sequence editor.
Solved!
Go to Solution.

You need to check the box in the Module window for that step that says Show VI Front Panel When Called.
Also, if you installed TS after you installed LV then in your block diagram pallette there are some TestStand VIs which aid in writing TS subVIs. There are 2 called: Start Modal and Stop Modal. You can read about them in the help. Basically they make the VI modal to TS.
jigg
CTA, CLA
teststandhelp.com
~Will work for kudos and/or BBQ~

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How to make the LV front panel controls the current value through the program is set as the default value when the next time you open?

How to make the LV front panel controls the current value through the programis set as the default value when the next time you open?
1110340051

Try this: Re: How to make a VI remember the latest control value?
Jim
You're entirely bonkers. But I'll tell you a secret. All the best people are. ~ Alice

How to make non-visible Control on Front Panel Appear at Design Time?

I have some Controls on the Front Panel whose visibility is changed (turned on or off) at Run Time. The problem is that if I stop the Run time, the Visibility of the Control remains in the runtime state in Design mode. So I may not be able to see or find the Control to make changes in Deisgn mode.
How can I make all Controls on the Front Panel visible, or find and make visible a Control on the Front Panel whose Visibility has been made False?
THANKS.
Solved!
Go to Solution.

This is documented in the LabVIEW Help.
Displaying Hidden Front Panel Objects
Complete the following steps to display a hidden front panel control or indicator. You also can hide front panel controls and indicators.
Find the block diagram terminal for the object. If you have several terminals with the same data type, right-click the terminals and select Visible Items»Label from the shortcut menu. Find the object with the label that matches the hidden front panel object.
Right-click the terminal and select Show Control from the shortcut menu if the object is a control or Show Indicator if the object is an indicator.
You also can use the Visible property to display controls and indicators programmatically.
You also can display all hidden front panel controls and indicators.
Path: Fundamentals -> Building the Front Panel -> How-To -> Configuring Front Panel Objects -> Displaying Hidden Front Panel Objects.

Help! how to make transparent front panel

Hi:
I intend to show a vi when my system call it but the backgound have color and I want it to be transparent. I search inside forum and get this thread http://forums.ni.com/ni/board/message?board.id=170&message.id=178411&query.id=105714#M178411 . After that I try follow that method using "call DLL" to let my front panel become transparent but I fail.
I attach my vi and hope come one can help.
thank in advance.
Attachments:
Enter OP ID.vi ‏50 KB

TK Chang wrote:
Thank a lot tst, it work.
By the way I am try to understand how to use windows API. For example function "GetWindowLong" got 2 parameter one is "hWnd" I know is get the window name and the other "nIndex" I search in MSDN (http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/winui/windowsuserinterface/wi...) but I can't figure out why the input value is "-20".
Same as function "SetWindowlong" and "SetLayeredWindowAttributes". All these APi i can find the explaination in MSDN but I don't know what value I should put for those parameters. Is there anyway to find out what vaule I should give for those parameter?
yes, if you can get that example for change bmp shape then pass to me.
Thank very much
Message Edited by TK Chang on 01-11-2007 09:44 PM
That is because Micrososft defined for readibility constants and usually only documents them in MSDN. If you want to know the numeric value (which you need when trying to call such a function from non-C environments) you basically have to install the plattform SDK from Microsoft and search in the headers for the constant name and see what value it has assigned too.
A search of the constant name as documented in the SDK on the web might sometimes also give results such as an include form for Visual Basic, and interface description for Delphi or simply C header files from some Wine patch, but there is no quarantee and you might have to look through many hits before finding something useful.
All these options do however require you to understand a bit about the syntax of the programming environment you got the solution from such as C syntax (the plattform SDK is completely for C(++) too), Delphi, or Visual Basic.
Rolf Kalbermatter
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions

Enabling / Disabling graphs and opening a new Front Panel Window

Hi,
I have a simple application of showing 12 analog signals on 12 different graphs placed vertically in aligned position. I have to develop a user interface so that if user wants to display signal no. 1, 4 and 6 out of total 12 signals, he should make selection using check boxes and click a re-draw button. It should result in opening a separate window with these three signals displayed as separate graphs aligned vertically and adjusted to fit window size. Similarly later user can change his selection of displaying signals (from same acquired data) say 1, 3, 5, 6, 8, 9, 11 & 12 and click Redraw button. It should result in opening a new Window showing all these signals as separate graphs which are aligned vertically and resized to fit the window. Now I have two major issues in this context.
1) I have been searching LabView help to locate a way to open a new window for this purpose but I failed to locate any way for it. As per my limited knowledge, it seems that we cannot have multiple "Front Panel" windows in Labview.
2) For the graph I could not locate a control to enable/disable a graph so that it appears or vanishes. Is there any way to achieve it?
I shall appreciate your valuable advice. I shifted from "Lab View Signal Express" to "Lab View" in order to achieve this user interface design but I am still not successful in finding a good solution for this application.
Regards
Mnuet

Hi Mnuet,
You can do what was said above. Here is a KB on dynamically loading VIs. It looks something like this.
Dynamically loaded VIs are loaded at the point in code while running, as opposed to being loaded when the parent VI is loaded into memory like normal subVIs. You can make a reference to them and then control the front panel appearance, their run status, etc with property nodes and invoke nodes.
Jeff | LabVIEW Software Engineer

Front panel controls show up one at a time

When I first open my main vi the controls on the front panel appear one at a time over 20-30 seconds. The problem was compounded when a second front panel was made switching between the two the controls for the second panel pop up one at a time and after they all appear the first panels controls go away one at a time. Any ideas on why this ocurs and how do I fix it so the transition happens quickly?

BenThe code is modeled on a vi that was done under LV5 and was also ported over to new computers and LV8. We had to install the traditional drivers to get that code to run on the new systems. The original vi transitions fairly quickly. The new vi is modeled on the original code with efforts being made to strip it of the overhead bagage. ie.the sequence structures and controls no longer needed..... The new code from the begining has sequentially brought up each control with each new control being added it progressively gets worse. With the addition of the second front panel in the same vi the protracted transition of the controls became a significant issue.
Bob
Attachments:
20060817.zip ‏2692 KB

View Cluster Control/Indicator as Icon on Front Panel (sub VI's)

I make a lot of use of clusters to pass data into and out of sub vi's. I keep everything typedef'd and the clusters can often grow to be rather large on the front panel which makes navigating the front panel quite difficult. I usually have maybe 2 or 3 other controls and indicators that are not within the cluster.
Is it possible to view the cluster as an icon in a similar way to the block diagram?

Hello DNichols,
I recommend placing the cluster(s) in question partway off-screen, with the label displayed. If you really need to minimize the footprint of the cluster front panel object, set AutoSizing to "None" via the right-click menu and resize as needed, but keep in mind that the FP object is now more-or-less useless to future developers except for ease of clicking to link to the connector pane. Since you're type-defining everything, accessing or viewing the contents of the cluster might not matter much, though.
Redefining your architecture is probably not a priority right now, but you might also want to consider using classes in the future, as others have suggested.
Regards,
Tom L.

Front panel locked up?

I'm using the System Control UI Suite 2.0 and trying to work with graphs on my VI. Frequently my front panel appears to "lock up". I'm apparently able to move around the front panel, however the front panel graphics themselves do not change location. If I hit "ctrl-A" to select all front control objects, the marquees themselves appear where the control 'should' be. If I close the VI and reopen it, the controls appear where I moved them previously. It's as if the front panel image itself is not updating properly.
This does not appear with other VIs. I can get around it by deleting the graphs, saving the VI, renaming the VI, and reopening it. For whatever reason this sequence restores it. Once I add the graphs and attempt to populate them with data in run time, my front panel locks up again.

Hi Synaesthete,
I am curious, do you see the same behavior when using only the stock LabVIEW controls? Have you tried replacing the UI Control Suite System Controls with the stock LabVIEW controls and seeing if the behavior still exists?
Also, do the controls only lock-up when in edit mode or do the controls become unresponsive while executing the VI as well?
Milan

Front panel remains after terminating lavbiew application

I have created an application from a LabView VI. I'm launching the application from LabWindows. I'm monitoring for the application to terminate. However, when I terminate the LabVeiw application, the LabView front panel is displayed and the LabWindows application terminated function doesn't see it as terminated until I close the front panel. Why is the VI front panel being displayed when the application is terminated. I have the program to run in dialog center screen. Once the application terminates, the dialog disappears and the LV front panel appears.

I like to put the Close invoke node inside of a Conditional Disable Structure. This way the front panel only closes when you are running an EXE and not when you are playing with the code.
There are only two ways to tell somebody thanks: Kudos and Marked Solutions
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Attachments:
Close Front Panel.png ‏10 KB

How can i access remote front panel in RT with LabVIEW run time engine in client PC

Hi to all,
I have developed the RT application with cRIO 9075 integrated chassis. And i have access its remote front panel in client PC. Now i want to access the remote panel in the client PC without having LabVIEW runtime engine. If i connect the remote panel with that client, it shows only the vi border. i doesn't downloads the front panel.
How Can i access its remote front panel without LabVIEW runtime engine in the client PC?

You cannot view a remote front panel without the LabVIEW runtime - the LabVIEW runtime is what makes the remote front panel possible. What you will want to do instead is likely create a Web Service that you can access from a remote PC without requiring the LabVIEW runtime. However, this will require you to develop a web-based HTML or similar UI to interact with the VIs running on your system - NI hasn't yet created a way to export a LabVIEW front panel as an HTML'ish page.
-Danny

Customize default front panel settings

How do I set a default color for the front panel?

From the Tools menu, select options and then colors. Unselect the "Use Default Colors" box and you can make the default front panel any color you want. One thing that I always do is set the coercion dot color to red so that it is easier for me to see when data conversion is taking place.

Lights on front panel of Envy 120 printer disappeared

After a paper jam, the front panel lights stopped lighting. The error message said that I needed to change the color ink cartridge (which unfortunately was only a couple weeks old). I changed it but no lights. I could still print via the computer but was unable to use the "copy" or "scan" feature since I was unable to "touch" the lights on the front panel. After speaking with HP, they decided it was a hardware issue, and even though I was only 5 months past my warranty, had no solution other than to buy a reconditioned printer from them for more cost than the price online. However, I noticed when I printed something directly from the computer, the front panel opened, the arm swung out to hold the newly printed paper, and the LIGHTS CAME ON! So my solution is to keep a piece of paper forever on the "arm" to make sure the front panel stays open--I can then access the "copy" feature because all the lights now work. I know this is not a GREAT solution, but it is at least allowing me to use up my several cartridges of new ink until I get tired of having a defective printer.

Hi @SHF710
I would leave the printer on and unplug the power cable, then after a minute, plug it back in. When the printer starts up it should open the display panel on its own. Also, please ensure you have the printer connected directly to a wall outlet and not into a surge protector.
If the issue persists, I suggest using the following link to ensure your printer has the newest firmware; Critical firmware update to improve printer performance.
If the issue remains unresolved still, I suggest calling HP. If you are in Canada or US call 800 474 6836, or you can Contact HP Worldwide.
I hope this helps. Please let me know if one of these recommended solutions resolves the issue.
Please click the Thumbs up icon below to thank me for responding.
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Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.
Sunshyn2005 - I work on behalf of HP

Use front panel as a button

Hello!
Is there any way i can make the whole front panel working as a button? I want to be able to click with the mouse anywhere on the front panel and it should be registerd as a OK click.
Best regards blyarn

Here, this should do what you want. It is messy and has no error handling/typedefs etc because I'm doing it while I watch football, so I'm not too concerned about my programming practices . But basically what it does is, the LED turns on and it tells my even handler loop that it is now on, and it stores the time it turned on in a shift register. Now, the event loop knows that any clicks on the front panel should send a queue message with the time of the button click. So, when the user presses the panel it queues up the time of the button press and in the bottom loop that message i dequeued and the subtraction is done. I know this may be a bit overwhelming with the handshaking so post back if you don't udnerstand anything. The reason I do it this way is because if you queue up a message saying the button was clicked and THEN get the time stamp for the button click once the queue message in the bottom loop is received, you could potentially have some time delay if processing is taking a long time. Then it looks like the button click took longer to happen then it really did. Does that make sense? I'm having a hard time writing it out clearly. Hopefully someone can translate this into english
CLA, LabVIEW Versions 2010-2013
Attachments:
time to push.vi ‏37 KB
time to push.png ‏79 KB

How do I get the Label for a Front Panel Control to appear in the Block Diagram but not on the Front Panel?

How do I get the Label for a Front Panel Control to appear in the Block Diagram but not on the Front Panel? On the Front Panel I am making a complex control that consists of a Slider and a Numerical Input box. Both Controls display the same information and either can be used for Input. When one changs, the other is made to display the same value.
But I only want the Slider to display the Label on the Front Panel, to avoid confusion. On the Block Diagram however, I want both controls to display their Labels so that I know what they are. How do I display the Label for a Control on the Block diagram, but not display its Label on the Front Panel?

No. The Label Visible property is separate for the front panel control label and the block diagram terminal label.
How did you start out with the block diagram's label not being visible? Whenever I drop a control or indicator, the label is always visible on both the FP and BD by default. Maybe there is a LabVIEW option that causes new controls/indicators not to have their labels visible by default, but I have yet to find it. I don't think an item should ever be dropped without the label visible, good LabVIEW coding practice demands that the labels for control terminals on the block diagram be visible so that you know what control or indicator a wire is going to.
That being said, I have seen a lot of VI's posted where the label for the terminal on the BD is not shown (against good programming practice.) I've gone to the BD and right clicked to show the label. Sometimes, the people have an empty label (which will turn off the visibility for both the FP and BD) and I'm forced to add some text of my own into the label so I can figure out what their code is doing. When I add some text to the label, at that time, I find both the BD and FP labels become visible.
Are you dealing with controls that have empty labels to start?
Good programming practices:
1. Always have a name for all of your controls, never use and empty label by deleting the text in the label.
2. Make the labels unique. For example, don't have two controls both called Stop. How do you know quickly know which terminal relates to which control?
3. Always show the labels on the block diagram, so you know the function of a control's terminal. If you want to hide the label on the FP, that's okay.
4. If you want a different label to appear on the FP than whatever you actually called the control, then use the caption. You can hide the label and show the caption. This is useful if you need to programmatically change what the "label" is on the front panel such if you are making an application that needs to change its user interface such as for a foreign language.

Is there a way to make the bookmarks panel appear only when bookmarks are actually present? As in, I

Is there a way to make the bookmarks panel appear only when bookmarks are actually present? As in, I'm looking for a global setting so that I don't always have to update the properties in each document.

AFAIK, no.

Make LV VI front panel appear

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