Controlling Of Panels In Swing

Hi,.. i have two jpanels in same frame i have divided the panels as left frame and right frame so when i click
a component for example a button in left frame a GUI should appear on right frame and when i click another component
in left frame the earlier GUI should disappear and new GUI with other components should appear i mean new panel on the right side shoud
appear and the left Panel should be there itself how can i do that plz help...

Dayananda B V wrote:
you should go through the following linkThe question is ~5 months old and the OP never responded to the question asked - better focus on ACTIVE questions (which are 999/1000 times RECENT questions) if you don't want to waste your time. If you can't find one here, there are always dozens of questions to answer over on stackoverflow.

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Dialog box problem when controlling front panel remotely

I have encountered an issue with the Web Publishing Tool- I have a VI that calls a subvi that uses the Promt User for Input function. When controlling the front panel from another computer I get a message saying that you "Cannot control subVI front panels remotely" and points you to the machine actually running LabView to enter the information in the Prompt User dialog box. I set the subVI front panel to show when called, which does show the front panel of the subVI, but still get the error related to the dialog box.
Is there any way to make this work? Am I missing something obvious?
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Hi Nathan.
There are some limitations with dialog boxes in remote applications. This tutorial has some good examples and explanations on functionality to avoid with web applications. Additionally, the LabVIEW online Help offers some general guidance for Viewing and Controlling Front Panels Remotely, which may help you in further developing your application.
Hope that helps!
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Airplay isn't showing up in my control panel. Where can I find it?

It will appear in your Control Center ... if ...
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Hi all,
After taking the Intermediate I class, I have been trying to follow the methods of using modular programming, but there's one thing I haven't quite figured out how to do. How can I change a front panel display from within a sub VI? I have a menu selection that I wish to change - can I simply input a reference to it or something like that?
Thanks much,
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All you need to do is to pass a control reference to the subvi, and then, in the subvi, to use a property node to modify whatever you want (well, almost...) on your control. Ask if you have more trouble and need an axample...
CC
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Attachments:
Image.png ‏4 KB

This help topic describes how to add the ... button on the function panel and associate a callback to it.
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Hello All,
I had some problem in swings.
Here I am giving my problem in detail.
1st ......
On one window named as "Main Screen" contains two buttons.
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What I mean is if Main window is minimised all subwindows are also to be minimised.
2nd ........
When Button1 window "Sub Screen1" is opened by clicking again on Button1 another window is opening.
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Controlling front panel properties from within a statechart

I have a user interface that I am trying to put into a statechart. On the user interface I have a bunch of buttons (controls) and indicators. To populate the indicators I am getting data back from 2 sources (USB and RS 232). For this, I have made shared variables for the data returning from the sources but this only works for indicators as far as I can see. Anyway, I have the software working and now that I am trying to go back and place the code into the statechart format to clean it up I am running into issues. Since the statechart does not run inside the labview panel I can not access the front panel properties of controls. Basically, I am using the statechart to control which buttons are active on the front panel (this is dependent on the state the user is in). Also I am using the states to control a LabVIEW “tab control” to determine which tab to display. For instance, I have an operate screen and a calibrate screen. Depending on which state the operator is in, different controls are active (I don’t want the user to accidently change an item on the operate screen while in calibrate). Is there a way to do this inside the statechart structure?

You don't actually copy the reference itself. Rather, you want to add a control of the same type as the reference to your statechart Inputs.ctl. You can get such a control by right clicking on the reference you created and choosing "create control".
Then you pass in the reference to your specific control into the statechart via the inputs terminal. You can then talk to this reference via VI server and manipulate the original control.
If this isn't clear probably the best thing to do is to look in the LV help index for the keyword "control references" and read about "passing to subVIs". Passing a reference to a subVI is very much like passing one to a statechart so most of this is relevant.
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Danilo Celic wrote:
Try this page:
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Thanks a lot. This web page gave some answers, but now I have
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Start here: [Creating a GUI with JFC/Swing|http://java.sun.com/docs/books/tutorial/uiswing/]

How to use REFNUM to communicate between Tab Control Indicator panel and subVI without explicit connections?

Hi! One of my test programs needs to show many readings on the fron panel. I used a 4 page Tab Control to separate
different catagory readings and put them in the clusters. If I connect these indicator clusters to the subVI by refnum explicitly, the program runs too slow. So I am trying to make the subVI communicate with the front panel without explicite refnum connection. So far, the subVI can communicate with the clusters on the front panel but not on the Tab Controls. Is anyone can give me some ideas how to communicate/pass the data to the clustes on the
Tab Control? Thanks,

Hi Qian,
If I understand the question correctly; you want to know if there is some other way to access the controls on the tab control without actually using a refnum from the VI that has the controls.
To answer this question I would say that LabVIEW is a very powerful programming language and one of the very cool features is that it gives you access to all the controls on a VI into another VI without actually passing any data between them.
The best way to do this would be using VI Server. The functions that you need to call would be Open VI reference to open a reference to your VI having all the controls. Then use a combination of Invoke nodes and Property node get access to the controls on the front panel of your VI.
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This is hopefully a simple problem, but I can't figure out what to search under. I have a program with two loops (Z Only Test and Full Test in Tester Program v2). They do not run at the same time. I would like both loops to interact with an LED on the front panel (Testing). How is this done?
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Attachments:
code.zip ‏143 KB

rbergs wrote:
Do you mean make the LED a shared variable? How do you do that? I clicked on it and changed it to a variable, but I thought that was like one of the others that I have. I'll give it a try and see what happens.
I would assume whatever works for this would also work for numerical displays as well.
No. I'm not even sure exactly what you mean by clicked on the LED "and changed it to a variable."
Right now you have only a single place where you use that LED. It has a terminal node on your block diagram within a while loop. I don't know how that fits into your overall program architecture as your VI is quite expansive. (Two tips, 1. Don't use stacked sequences. 2. Look into a state machine architecture)
All that happens at that point is your read from a shared variable called "Testing". I'm not sure from where else in your VI that you want to interact with that front panel indicator. Or whether it will conflict with the already written piece of code. I also don't know where this shared variable is written to. But the first idea is have the other sections of the code write to the shared variable and let this one update the front panel indicator.
The second idea is to create a local variable of the front panel indicator. Right click on the terminal within your code and select Create / Local Variable. But again, you will have to be careful with conflicts with the different portions of your code writing to the LED. This is also known as a "race condition".
(Yes you can use either shared variables to store numeric data, or create local variables of numeric controls or indicators.)
I'm a bit nervous about your code. It looks like you have a decent amount of LV experience as you have created quite a sophisticated VI there. However, it doesn't seem like it is easy to expand or modify. It takes up quite a bit of screen real estate. It doesn't use any subVI's even though a lot of the code seems to be duplicated or very similar. And it seems like it uses a lot of shared variables, probably more than necessary.
Message Edited by Ravens Fan on 05-29-2009 01:38 PM

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The all-in-one is about a year old. It's been working fine, but suddenly the control panel display went blank. The phone keys are gone, no icons show up... the only things I see are the little house, the ? and the two arrows surrounding a white screen where the icons used to be. I've tried unistalling & reinstalling, but that made no difference. Any ideas?

Hello @Mimzy-2015 , and welcome to the HP Forums, I hope you enjoy your experience!
I see you're having problems with the printer control panel. I would like to try and help.
I'd recommend starting with a power reset on the printer. Disconnect the power cord from the printer and the power outlet, then wait 60 seconds. After 60 seconds, plug the printer back in. Ensure you plug the printer directly to a wall outlet. Make sure to bypass any sort of surge protector or power bar.
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I would also recommend updating the printer firmware:
HP Officejet Pro 8600 N911a Firmware
Good luck and please let me know the results of your troubleshooting steps. Thank you for posting on the HP Forums!
Please click “Accept as Solution " if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the right to say “Thanks" for helping!
Jamieson
I work on behalf of HP
"Remember, I'm pulling for you, we're all in this together!" - Red Green.

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Controlling Of Panels In Swing

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