How to change front panel indicator properties such as background color or enable/disable programmatically?

Is it possible to change the properties of a front panel indicator such as background color or to change from enabled to disabled-grayed out programatically in response to limit conditions or a time-out?

"Disabled" means that the control/indicator will not respond to a user operation. However, the displayed data can still change. What you want to do can be easily achieved using a case structure : wire your boolean to the case input, and put your indicator in the "True" case condition. That way, it will be updated only when the digital input is set to true.
CC
Chilly Charly (aka CC)
E-List Master - Kudos glutton - Press the yellow button on the left...

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How to set front panel size to be same as one led?

Hello All,
LV2010
In documentation reads that minimum front panel size is one pixel. I need to create front panel which have same size as one led (see attachment). I'm not able to make front enough small just by dragging window borders. I also tried to change front panel size from File->Vi properties ->Window size but that didn't helped. How I can set front panel to smaller size?
Attachments:
Small_front_panel.vi ‏6 KB

I think I got it
In the window apperance option I removed everything except "Allow user to resize window" And the Run options. Then I ran the VI (continuosly since there is no loop) and resized it. After I stopped it, I then removed "Allow user to resize window" from the window apperance options.
P.S! If you try to resize my Vi now, it will pop back out for some reason.
Regards,
Even
Certified LabVIEW Associate Developer
Automated Test Developer
Topro AS
Norway
Attachments:
Small_front_panel (1).vi ‏6 KB

Imitate boolean switch behavior using an event structure on a front panel indicator

Hi,
I am looking for a possibility to imitate the bevhavior of a boolean switch with an event structure. To be more precise, I want a boolean value to change each time I click on the front panel indicator and then remain constant until I click again. I have not worked with shift registers in a while loop yet, but could this be a way to find a solution?

LordSnow wrote:
Okay, I figured it out, BUT I still have a problem. Before I first trigger a mouse event on the front panel indicator, I already need the case structure to be executed once. Therefore I assume that I need some kind of default value, but since the event structure does not create any output at first, I have no idea how to do that.
Are you talking about the shift register you just created? You can while in a default value on the left shift register ndoe. It is wired outside of the loop.
There are only two ways to tell somebody thanks: Kudos and Marked Solutions
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Maximum Character size of Front Panel indicator in LabVIEW

Hi,
I have a simple question that I hope somebody can answer. Is there a maximum character size that can be displayed in a Front Panel indicator in LabVIEW? If so, what is it? I have a VI that is continuously reading a serial port and updating a front panel indicator, and I need to know how much text can be displayed before it either truncates or throws an error. This is for LabVIEW 2010 SP1.
Thank you,
J Korn

A quick Flatten to string shows how LabVIEW stores strings {size-data} Size is a U32 so 4294967295 characters max.
The big thing to remember is this memory must be contiguous (and the Indicator requires a COPY) so in practice the performance hit for constantly allocating larger and larger buffers for the data and available memory impose practical limits much lower than the 4294967295 Char maximum. Probably better to log the data to a file and maintain only the last x characters on the indicator and use the file to look a history data
Jeff

How to change front color in Visual composer

Dear friend,
i am taking numerical expression box into visual composer table view
and try to change the front color in style tab for that field property
but front color is not changing in output(back ground color is changing ).
how to change front color in visual composer?
and can we change the symbol color too?
thanks and regards,
dushyant.

Hi Vani!
1. Unfortunately one of my requirements is that I can only get data from queries and not from Web Services or other sources, so no WS calling would be allowed in my deployed I-View, but thanks anyway for your suggestion.
2. You are right, I was not clear enough in my first post. Let's say I have 3 rows and 12 columns, what I want is the following:
ROW3 = ROW1 / ROW2
obviously for each column. Do you have an idea about how it could be done??
Thanks a lot,
Andrea

Do you know how to create Front Panel like Web,

Do you know how to create Front Panel like Web, I mean like we pointed the word and click it will do another process instead by clicking push button.
If possible, i can click the link in the table... Any idea anyone
Solved!
Go to Solution.

Hi ezam,
can you define more clearly exactly what you would actually like to do, and ill have a further look into it. I think smercurio_fc has understood it as I have, and is right with the activeX.
any way, give a shout back with exactly what you want to do and we see what we can do,
Richard
Richard S
Applications Engineer
Certified LabVIEW Associate Developer
National Instruments UK&Ireland

How to make front panel as Generic

Hi all ,
I need to know that how to do front panel reuse.
Here i am using two front panel to do some work .
But both the front panel do the same work ,
I need to use create one front panel make them as generic .
I C# can able to do front panel generic .
In labview how to do it .
It helps me lot ..
Thanks in advance .,
Attachments:
fp.vi ‏11 KB

You can group the controls as a Cluster and make a type-def of it. That's probably what you're after.
/Y
LabVIEW 8.2 - 2014
"Only dead fish swim downstream" - "My life for Kudos!" - "Dumb people repeat old mistakes - smart ones create new ones."
G# - Free award winning reference based OOP for LV

How to embed front panel in FP-2010

hi
1. is FP-2010 support "front panel embedding"?
2. if yes then how?
regards
mazhar

Hello Mazhar,
Thank you for contacting National Instruments. If I understand your
question correctly you would like to know how to utilize front panel
communication on a Fieldpoint 2010. If you are just trying to view the
Front Panel of your Fieldpoint VI on your development computer then you should
be able to open up the front panel on the development computer and see it
running. However, if you are trying to communicate the information from
the front panel to a non-development machine there are a few different
methods. Here is a knowledgebase
article that explains some of the different methods that you can use.
Here is some more information about setting
up a remote front panel for a Real-Time target executable that also may
assist you. Please let me know if you have any further questions or if it
seems that I do not fully understand your question. I hope this helps!
Thanks!
Bob H
Applications Engineer
National Instruments

How to get front panel sou

how to get front panel sound for me headphones, i have audigy 2 ZS.

Works Great. Thanks
!!! Although .... the gain on the front mic is very low compared to the rear mic jack. Instead of using the x0 pin plug for the mic, I configured/spliced the front mic wires into a (rear) pass through /8" jack lead. Now, the front panel mic is at full output. I lose the?rear mic input, but I'll never use it now that I have front panel input.

How can I programly change button's blink speed, blink forground/background color?

How can I programly change button's blink speed, blink forground/background color?
Besides changing the LabVIEW.ini, is there another method to achieve?

I was about to post a new one on this old thing but came across this when running the exe file from a vi with a blinking and back/foreground color property. In the vi mode everything worked properly as intended with the properties (different color and transparent other than the manual setting under the options->color), including changing the the color under options menu. But the exe file made the BG/FG color to red and yellow while blinking. I came across this topic a long time ago but never used the blinking indicators in the .exe files. NI or someone else has said this is a bug or the default in .exe running environment, please confirm this so I do not have to play around with this.
Also attached is the .ini file from the .exe file and how I add a BG/FG color line to get it working like blue when visible and transparent when not?
Thanks in advance!

How to update front panel immediately with any control change in LabVIEW7.0?

I have a lot of controls on the front panel. I want my 3D plot to be updated with any of them changed. Currently only one control's change can result in the update even if I do have done changes on other controls .. that's to say, only one specific control's change can activate the front panel updating ... That's not what I want. So how to make the front panel updated immediately like VC?
Many thanks!

I solve this problem by combining the event structure with a classical state machine. The classical state machine is a case inside a loop with either an enum or string shift register defining the actual state. In the idle case of that structure is the actual event structure which handles the UI.
Whenever I need to trigger a specific action which could happen from multiple locations I actually place the handling code in a specific case in the outside state machine and just wire from the actual event case the according state out to the shift register.
This architecture allows for a very flexible and extende state machine programming with the event structure doing all the UI event handling and the state machine doing the more involved actions or series of actions
Rolf K
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions

Centering Label Text over front Panel Indicator

How can I get the Text in the Label of a Front Panel LED Indicator Control in LabVIEW 2009 to be centered over the LED?
How can I change the Font an Font Size of the Text of a Label?

Hi,
Label to be center at the object.
There are many Ways like
1) what the JackDunaway has explained Text Settings Toolbar button.
2) Other you can dynamically change the property of label.
Like you can change programmically change label justification, size, color, and many property.
Just right click on object.Go to creat property node. refer screen shot for more help.
Thank you.
CLAD
Labiew programmer
Attachments:
Lebel property.png ‏133 KB
Lebel property.png ‏133 KB
Lebel property.png ‏133 KB

How to activate Front Panel Wait in LV7.1?

Dear list,
     I am a new comer here. Thank you for your help.
    I have a question: when I try to use the "Wait for Front Panel Activity", the time sequence looks just skipping this without doing anything. Can someone help me to take a look at the code, to see whether it is a bug in LV7.1, or there is better solution to this? I am using WIn XP SP2, LV7.1 .
    I also saw this post but no one has answered yet: http://forums.ni.com/ni/board/message?board.id=170&message.id=104403&query.id=26578#M104403
    Thank you!
Attachments:
TestFrontpanelWait.vi ‏26 KB

Place an indicator on the loop counter [i] and you will see that is is waiting just fine. Of course any front panel activity (mouse down, key down, etc.) will terminate the wait.
"Wait for front panel activity" is realtively crude tool to pace a loop. You might want to use an event structure instead, e.g. for "OK button: value changed". What is the program actually supposed to do?
You should also eliminate the local variable, it just complicates the code and requires an additional copy of the data in memory. Instead, you can place the string indicator terminal after the case structure and wire the strings from the various cases to it using a single output tunnel. The numeric indicator should be blue (right-click..representation..I32) to match the datatype of the wire.
LabVIEW Champion . Do more with less code and in less time .

How to make front panel-text visable but not selectable

Hi,
I am trying to overlay text over a LED (control) on my front panel. But now I can not control the LED status anymore because the text is now on the top layer and the LED control is not. I like it to be still visable, but I need to be able to select the underlying control. Is this possible?

Hi Remko,
why do you use a LED as control? It is meant to be an indicator…
Boolean controls also have boolean text - you need to make it visible in the control properties. Now you can write any text "over" your control without disabling it's usage!
@Potterton: Welcome to the forum!
Best regards,
GerdW
CLAD, using 2009SP1 + LV2011SP1 + LV2014SP1 on WinXP+Win7+cRIO
Kudos are welcome

How to hide front panel objects behind other front panel objects

Hi,
I need tho change an existing project and to make it simple just want to hide some front panel objects behind others. But I can't find how to put the one I wnt to the front hiding all others. So now there are some in front that should be hidden.
Is there a button or menu item "Move to front / back" like in many other programs?
Thanks
Martin
Solved!
Go to Solution.

Hi Martin,
what about the link I provided in my previous post? What else do you need?
What about the chapter "fundamentals" in the LabVIEW help?
Going the way "Fundamentals -> Building the FrontPanel -> How-To -> Reordering Objects" seems rather logically to me…
Best regards,
GerdW
CLAD, using 2009SP1 + LV2011SP1 + LV2014SP1 on WinXP+Win7+cRIO
Kudos are welcome

How to change front panel indicator properties such as background color or enable/disable programmatically?

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