I am trying to make an on-screen keyboard (OSK). I have previously created a nice one that works perfectly if you can feed in the reference of the control that has focus. However I cannot seem to reliably get a unique control reference for several circumstances (e.g. an element of cluster that is inside an array). So I decided to try and make my own, in the spirit of the code of this open source project: https://sourceforge.net/projects/numpad-emulator/files/latest/download?source=typ_redirect

The crux of my current problem is that whenever I click on one of my buttons of the OSK the focus is brought to the new window, and therefore I cannot direct the text into the control that previously had focus. I believe the way to solve this is to use the WinAPI to set the Extended Window Style of my OSK to be WS_EX_NOACTIVATE. According to MSDN "this style allows a top-level window created with this style to not become the foreground window when the user clicks it. The system does not bring this window to the foreground when the user minimizes or closes the foreground window". This is the technique used by the Numpad application I have linked to earlier and works perfectly.

Attached is my attempt. The hex style 0x8000108 is what Numpad uses for the window style. I can successfully control this application from my LabVIEW test to turn on or off the NOACTIVATE by setting or resetting the greater "8" bit in the config. This just does not work for my LabVIEW window though.

Any ideas?

Num Keypad.vi

I don't know how they are achieved(it is possible they utilized the 2D Picture control). Has anyone worked on similar projects and can offer some help?

Similar to Siemens PCS7 SFC, I need to arrange specific modules in a certain order—either sequentially from top to bottom or in parallel.

I have already figured out the execution logic. My main challenge is how to implement the graphical editing functionality.

My project is to translate an application into multiple languages,
However, I am facing an issue with the display of the TabControl and the TreeMenu, When I translate them into French, I have spacing problems, as you can see in the picture.

I am using:

LabVIEW 2024
Input file format: .json
Encoding/Conversion: Unicode

Thanks for help, 


 

TabControl V 2016.vi

Thanks,   -Joe

I'm trying to hide a line of text by setting its height to 0, but when I do, the text is still visible on the control. Is there a better way to solve this problem?

The reason I don't want to update the item Names is that I think it might be inefficient. 

Thanks and looking forward to your best practices.

Thanks

PJM

As it's not a core part of our application, I don't want to develop one & I don't think LV is best suited to this task.

So - has anyone any recommendations of a paid for image editing toolkit within their LV project? I'm thinking a .net / winforms package that we could easily call and integrate into our project.

Thanks, 

Martin

I am trying to find a mechanism to determine which monitor a mouse is on (to determine which monitor to display a pop up). I can probably get calling VIs monitor but that is not exactly what I need.....

Any help is appreciated!

I am working in LabVIEW 2022Q3 32 bit.

I have been trying to make a System Style Enum that can be modified since I need to change the RingText.BGColor property to highlight the control if the UI determines there is a settings conflict.  I have modified an NXG Style Enum to look correct but when you click on the image that is the down arrow the control does not respond.  Any ideas on how to include that image in the area that the control responds to a mouse click?  For reasons in the code I'm not able to use a combo box.  I have attached the control.   I really like the NXG/Fuse style controls but the enums and rings are not great looking.

Tap Passive Load Relay Channel Enum.ctl

However, I also want the callers to continue to update as the user might then discover something critical in those displays while in the setup and exit the setup. The easy (/correct) solution to this is to have a separate loop in the callers that calls these setup dialogs, because then the setup dialog can be called statically/syncronously and have its window set to modal....I then get both updates in the caller's display and block access to GUI operations in the caller window. Now the downside to that is that you have to have such a dedicated loop and for various reasons some of the updates happen in the same loop here, so instead I thought I could call the dialog dynamically. This invalidates the modal behaviour though as it will not be modal in relation to the caller anymore.

Setting the dialog "Always on top" is one option, but then it will stay on top even of file dialogs it calls(!) so unless you turn off the always on top setting every time you call a file dialog you have another problem. Setting the dialog to floating on the other hand does not block access to the caller's window. I can alternatively live with that by adding code to close the dialog if the parent gets closed etc, but a true modal behaviour would remove the need for such additional code and would be preferable.

So, the question is, is there a way to call a VI asyncronously, but still force it to behave modal in relation to its caller (or "globally" (for the application))? Or should I just capitulate and make sure these calls happen statically in a loop that can wait?

1) a way to import a graphic that allows it to be colored like native LV controls?

or

2) create and import/use a custom decoration?

I'm trying to use the old color ramp control but would like to have it be a hexagon shape. I've created one using a cluster of three color ramps (in example, LV 7.1) but was wondering if there was a way to create a custom hexagon decoration to import into the color ramp. I've used this method in the past to make up/down arrow buttons but was wondering what is the secret to importing a custom decoration that can still be colored (FG, BG) like a native decoration.

Thanks,

Doug

Download File:post-2152-1142987440.vi

When this happens there is often an awful lot of things to recreate if the VI has to be recreated/all controls deleted (especially since copying diagrams does not replicate front panels or vice versa...).

Has anyone experienced this and found a way to fix it? (I have the source code of the tool available so one possible step is to start debugging the crash on that, but perhaps someone has been down that rabbit hole already?)

I have an application running on a system with a discrete Nvidia GPU and an integrated one. The application call a dll to perform data processing on the Nvidia GPU while, in parallel, updating the UI plots in a parallel loop with the data from the previous iteration of data collection. Right now the integrated GPU is not used (at least according to the windows task manager); enabling the plotting results in a small (but visibile) increase in the elaboration time of the data processing.

Hence, I'm assuming that LabVIEW is choosing to use the discrate GPU for the UI/plotting also.

Is it possibile to force LabVIEW to use the integrated GPU for the UI rendering?

Thanks,

Marco.

Now I have an application where I want to spawn trends of a tag if you drag the tag out of listbox and I had to remake the code...(see video below).

At first I tried to use mouse events to position the window, but I was unable to get a smooth movement that way. I searched the web for similar solutions and found one that used the Input device API to read mouse positions to move a window without a title and that seemed to be much smoother. The first demo I made for myself is attached here (run the demo and drag from the list...). It lacks a way to cancel the drag though; Once you start the drag you have a clone no matter what.

Has anyone else made a similar feature? Perhaps where cancelling is handled too, and/or with a more generic design / framework?

Drag window out of listbox - Saved in LV2018.zip

My GUI has a ring control populated with some values (a list of recent files). Does anybody know how to handle the situation where they click the same item as is currently selected? I cannot figure out a way to handle this sensibly.

Perhaps it would be better to use some other control class? I have been asked to implement this as a drop-down type control (which is quite customised cosmetically).

I'm using the picture control to render data to the clipboard and trying to get rid of the three pixel control border that gets rendered. Right now I have the border set to transparent which results in a white border around all of my images regardless of their content. If I set it to a color, LabVIEW draws a 3D effect in the border. Ideally I'd like to kill that border entirely, or at the very least have a flat control where I can have the border be a fixed color so it blends into the image content.

Back in the day I remember someone here posted a borderless cluster control, so I'm wondering if such an thing exists for picture controls?

Im pretty sure there is an option in LabVIEW 2019 when trying to comile FPGA VIs ,if you input 3 then three VIs can compile at the same time.(By default you can only compile one ,which is relatively slow when I have multiple VIs which requires many hours each to compile.)

Now I just cannot find where to change the number, does anyone there know where and how to change the number?

Thanks.

When I set the windows behavior of the VI to floating, the program is OK.

But when I set thewindows behavior of the VI to the modal, there is a transparent border, and it is not fully transparent. Is there any good solution?

The VI of the test is in the test1.rar file.

test1.rar

How I do this? Are there any way to "All Files" not appear?

Thanks

I am trying to apply some principles to dynamically theme a UI in LabVIEW a la Google Material (https://m3.material.io/). I have created a theme class to define the different color schemes for the different situations (light mode, dark mode, whatever else) after loaded from a file. I am getting things to work pretty well overall EXCEPT I cannot find a good way to change the following colors:

• Listbox: border (the blue box surrounding the two listboxes shown in the screenshot)
• MulticolumnListbox: border (gray in the screenshots so not too big of a deal)
• MulticolumnListbox: horizontal lines (cannot see anything that implies dynamic coloring for this)

I will go ahead and attach the VI but I doubt it will be very useful for figuring this out - all the coloring will happen via another VI. I just need to figure out the properties to make this happen. Or to be gently let down by telling me it isn't possible for those items and I have to figure out a work around........

side note, this is not where things will actually be put on the screen, so don't get bogged down in that weird detail

test vi to theme.vi

This opens the Camera App in a separate window, I need it to be embedded in the front panel.
I have tried using an active X container and Insert ActiveX object, Camera is not listed.
The Camera exe can be found in "C:\Program Files\WindowsApps\Microsoft.WindowsCamera_2023.2312.3.0_x64__8wekyb3d8bbwe\WindowsCamera.exe". This folder is protected and when I remove the protection and call it directly there are errors about missing dlls (mrt100_app.dll and then SharedLibrary.dll)

Anyone have any bright ideas.
 

Okay so I have a front panel, with some boolean controls on it.  I want to get the image of that control, and I want to put that image on top of other images.  The background color of the other images is controllable, so if I use the Get Image invoke node method on the control reference, and just set the background color to what the background is of the pane that the boolean is on, then it is convincing enough.  But I am having issues when these boolean controls are in other controls.  If it is in a Cluster for instance I need to get the image of the background of the cluster.  Clusters can be transparent so I need to keep getting the owner controls until I find one that isn't transparent.  For bonus points I can also use the Create Mask VI to mask out a color, and I can use the color of the background element to get an even cleaner image of my boolean control.

This is all a pain but doable.  The issue I have is when my boolean is in an array.  My main goal is to just get the boolean control, with the alpha or specific colors masked out.  But when it comes to having booleans in arrays that is an issue.  Any suggestions?  Attached is a demo of what I mean.  Set the enum then run it.  For the scalar we just get the pane color.  For clusters we get the color, then if it is transparent, keep going up until we find a color, or find the pane.  But how do I handle the array?  Thanks.

Boolean Get Image Testing.vi

Any tricks to clearing the front panel graph data without having to open the VI ?    Its a 6 or so plot mixed signal plot (4 analog, 2 digital with ~20 digital waveforms in the digital plots)  and the saved file is about 22MB (not that big) - but to say the Mixed Signal Graph's performance and behavior is 'poor' is an understatament.

Thoughts and pointers appreciated.

The two xControls are pretty well defined and feature complete but for them to be introduced into the wild, they need "productionising" (documenting and tidying up FP/diagrams and creating VIPM installers). I've sat on them for years so it's not going to be me that does the last few percent and I don't want to be the one that people go to for support (I have enough out there already that I have to support). So if someone wants to take up the mantle, give me a shout and I'll figure out how to release them.

The XControls are self contained with their own examples:

The "Execution Toolbar" xControl example.

The Tab Control xControl example:

If no-one is interested then I'll keep them in my private box and sit on them for another decade. 

I want to build a touch friendly UI with LV2023 Fuse Design System.

Is there a way to make a tree element touch friendly? especially enlarge the "+"/"-" for Expand/Contract elements?

Thanks in advance

For a few, I have a "special treatment" so I need a specific event case, in addition the cluster event case.

What is the event priority?

First the cluster than the single element o vice versa?

Thanks,

Dave

Any suggestions to slove this ?

Eric

Test colorize string.vi Colorize String Text.vi

My brain and google skills stopped working and I can't believe there's no simple solution to this.

I have image data (not a displayed image) and I want to copy it to the clipboard. All solutions I found was using getimage or exportimage, which means a dummy indicator and also a small border around the picture (I would use it if I could get rid of that border).

Is there a more sophisticated/simpler method to copy the actual image data/picture? I'm on Windows so it can be platform dependent. Wrapping Clipboard.SetImage would be a solution but maybe some of you have a code sitting around.

Thanks in advance.

   What do I call programatically to get a list of all available fonts in LabVIEW please?

Cheers, Alec

To be shown with text (think 'enum') instead of the value of the bus.  

Typical use would be, such as in a logic analyzer, where a symbol table is used to represent the name of a state in a state machine

Another use might be to show decoded data (example below from Andrew D. Zonenberg's glscopeclient manual )

My use case needs the Mixed Signal Graph and will involve cursor use, and lots of zooming in/out to review large sets of data quickly, spanning digital (binary, state, etc) and analog signals.

Having a  Mixed Signal Graph that can show text, instead of JUST 0, 1, L, H, etc  would be EXTREMELY useful and elegant.  Running in 2022 Q3 at the moment, I am unaware of this feature in any version from LV 4 (yes, I'm an old timer) through to 2022-Q3 (hence not holding my breath for 2023Q1 to address this)

Sure, with a bunch of work, I could recreate the Mixed Signal Graph with a picture control and get the effect I'm after -- but LV's supposed to be making things easier and faster - if I have to go to that level of effort, another language may win out

A graph that can take an enum and show the String of the enum (rather than the value) in the GRAPH (not on the axis) would be phenomenal

Thoughts appreciated.

I'm looking for a solution that might be windows only! Win32 is accepted as well.

Ton

I would like to know if there is a way to access to the reference of the runtime shortcut menu of a control? I would like to enable/disable one of those menu item programmatically. I only know how to access the runtime menu of the VI.

Thanks in advance.

Now with that out of the way here's what I got.  I wanted to make an interface similar to Veristand.  I don't want to re-create the wheel when it isn't necessary but anyone who has worked with Veristand knows that there are quite a few limitations, and as a result I started developing a UI that is dynamic.  So that controls and indicators can be added and setup in way that could be saved and loaded for different operator types.  This would be setting and getting event based information from Actors running asynchronously.

Implementation

It is a publisher subscriber architecture.  Here there are actors for each set of hardware we care to read from.  Later we could talk about controlling Actors but for now lets just talk reading.  So for example there maybe an Actor for CAN, Power Supply, AIO, DIO, FPGA, Real-Time (talking to another PC), UPS, etc.  

Each Actor has a functional global that describes what data it has for other panels to display.  For the time lets call any data an Actor is publishing a "channel".  An Actor will publish the channel data to user events, and in a global it will have the list of user events and their names so they can be subscribed to.

The actual messaging system between the Actors and the Panels can be anything and in my demo I actually just have random numbers because the demo isn't meant to showcase the messaging it is meant to showcase the UI.

UI

The purpose of the demo posted is to show that a tabbed interface can be made, and be made semi-dynamically.  There are 3 things to be defined to understand what is going on.  The Parent VI, the Panel VI, and the Child VI.  In the demo the Parent is the top level "Main.vi".  Clicking the "Add" button will add a Panel VI which is a shell of a VI that has controls to minimize, pop out, and control menus to the Child.  The Panel has a subpanel that contains the Child VI.  The Child VI in this demo is only a graph showing random data.  The Child VI is tied to the Panel VI using a subpanel.  The Panel VI is tied to the Parent VI using Windows user32.dll function calls.

The user can interact with the Child anyway the child defines.  There is no right click override (like in Veristand) where you can no longer right click on a graph and get a menu.  The Parent VI also has little restrictions.  It is a normal VI with a menu bar which can be used for things like managing Panels.  In the demo there is also tabs in the Parent.  They are fake tabs in that there are 20 but the ones not being used are hidden.

There are neat UI elements that are hard to describe in text.  Things like docking/undocking Panels, minimizing Panels while docked or not, resizing Panels while docked or not, moving panels quickly and easily, renaming panels, intuitively adding tabs while moving panels.  These are the basics that I didn't know if I could do so I did first.  The messaging I described before is not difficult it just takes some time to define how Actors talk and how Panels subscribe to the data.

I know there are some UI bugs.  The biggest one that you'll notice is trying to move a Panel when docked will have some z-order issues with other Panels that are docked, but there are others.  

Code

The actual code in the demo uses several pieces of code I've found.  The parent child idea I originally saw in the Dynapanels demo. Then there are several user32 functions from the Windows API.  Panel controls were from UI Panels. OpenG Array, Error, and Application Control is needed, I'm not sure if there are others.

http://screencast.com/t/P9SJ1anR

Please feel free to comment and use as you see fit.  Just know I won't be supporting this as a real project.

Multi Panel Interface.zip

cluster's frame. You can set the background color using the Cluster.Color

attribute, but I can't find a way to set the frame color.

Thanks, Jim

What I would like to be abe to do is have a Tab control with different functions per tab , then let the user be able to drag and drop an "Icon" so to speak to the listbox,table etc... then I can pop up the user input screen for that particular function. Note , when I say function , i mean things that relate to testing , not , functions from the pallettes etc...

Dan

J-

The project is hosted on github,  https://github.com/unipsycho/LabVIEWdotNetDataGrid

I started a discussion for it in the LabVIEW NI community site when I started but its a LOT more presentable now, so extending this to LAVA.  The original discussion is here:

https://forums.ni.com/t5/LabVIEW/OpenSource-Project-for-a-NET-Datagrid-for-LabVIEW/m-p/3194273

The main premise of the project is to have extended data types, extended features with a event driven datagrid for LabVIEW using .NET.

Please let me know what you think or if any questions or ideas to add to this.

• How do I change the color of the red area?

What I've tried:

• I ran the SetForegroundWindow Windows API function. This causes the titlebar to flash and draw attention for a short while but does not make it frontmost.
• I ran the BringWindowToTop Windows API function. This does not make it frontmost.
• I made my application window floating. This does appear to work. However this causes other problems since the window which I need to be frontmost is also a dialog box. So I don't want the user to click behind the dialog box onto my main application window.
• I tried using the floating window property (as mentioned above), then quickly made it modal again. This has the affect of flashing the window to the user and then disappearing behind any other app windows. Not good and also confusing.

So, is there any way to do this?

Here is the setup of my API: 

1. Configure the Amount of Columns and Column Titles.
2. Configure the Table Properties
3. Bind the DataSource
4. Configure the column Header Properties such as autosizing and minimum Column width using DataGridViewColumn (Needs to be done after binding the DataSource otherwise there is an error setting the column properties because I cannot get Item)
5. Write row data (first clears row data if there is existing row data)

All of this works fine up to the point where I am finished displaying data and want to close/dispose of the references. i.e Disposing of the DataGridView reference causes LabView to crash IF the DataGridView Table needed a vertical scroll bar.

https://www.pantone.com/color-of-the-year-2022-palette-exploration

I have some cool graph extensions I'm building in an open source project, which make some nice graphical overlays for XY graphs and waveform graphs in LabVIEW.  I've got a github page where you can grab the code, support the project or just have a look at some of the same screenshots.

Everything updates live in the graph, so you really need to see it, to get how it all works, so here you go:

https://github.com/unipsycho/Graph-Extensions-LabVIEW

Please star follow the project if you want to see this developed and I'd appreciate any feedback or ideas to extend it further.  The markers are very much IN development right now, so no where near finished, but the tools can still be seen working.  THANKS!

I know I can do this in the build spec, but I want to be able to force this off in an executable.

I am being dumb, and it's obvious, right?

Problem is though the intermediate pixmap format completely flattens the data, thus removing any trace of vector based content that was in the original picture (blue wire). Is there some operation I can do that will translate all coordinates in an existing picture string?

Extracting the contents and converting to bit arrays

Say I have this bit patten, and I convert it to a U8 [][], like this

Then I can display it on a Picture Control, no problems

Like this

So far so good...

Now does anyone know why this particular pattern (and a few others) don't work correctly? As you can see in the picture I am getting some light pink leaking through (almost like some kind of anti-aliasing).

It does not happen for any of the alphabetic chars, but does for a few others.

Any ideas?

I'm getting tweaked in validation reviews because I declined to include an explicit "stop" button to close down the application.  (The application typically runs for multiple hours.)  No matter how I try to explain that no other desktop application has a "stop" button (I just intelligently handle shutdown via the filtered window close attempt), I'm being told, "NO, it NEEDS a STOP button".

Of course I'll give my manager what he wants, but I don't have to like it.

OK, let's hear the sage advice and similar tales come rolling in...

Dave

I have a strange bug/feature with Front Panel - Get image. The image has a false color. I haven't tested with other colors, I hope there's some easy answer, or it is a known bug, so I stop searching and heavy debugging and go with the alt+printscreen emulation method instead of get image.

The false color is on the graph > plotimages.back and seemilnly it's only the orange that turns into pink.
(Don't mind the other small differences betwen the images)

The pictures are generated in sequence without any delays, maybe the front panel is not fully updated before the capture? Which would mean some things are updated asynchronomously, which I didn't explicitly do. I certainly see the front panel flashing in the right colors.

Thanks for any hints!

At the moment this only supports 1D arrays, and only in the vertical direction.  Code is saved in 2020. 

Array Resize and Scrollbar Link.zip

I'm platform locked so the GetCharABCWidths method springs out, but I'd have to dig a bit to figure out the data structures used in that call as I haven't really dealt with it before.

Has anyone tackled this before and can perhaps suggest alternatives?

This would also include an automated documentation output of the Descriptions/Tips that is easily transferable to a document editor such as Word.

https://forums.ni.com/t5/LabVIEW/select-multiple-files-and-folders/td-p/3049461

I have an application where I want to manually select a handful of folders (which in my case live in the same directory) and automatically fill their paths into an array.

As stated in the discussion linked above, the File Dialog express VI offers a mode to select multiple files, but as I can tell it does not offer the functionality to select multiple folders.

Am I missing an obvious solution?

 is it possible to create and resize a button in a running vi's front panel?
I would like for example to place a square button where I press mouse down and then, if I drag left and right borders, resize it.
I've done something similar in the past using images, but this time I need buttons to be single objects I can move in a second time
 

WMF looks worse, it is even smaller and it came into LabVIEW with different dimensions after the import compared to EMF.

Any idea how I can improve this vector import to LabVIEW?
(copy/paste via clipbord from Inkscape to LabVIEW does not work)

Rotary XY achsis control - normal.7z

Component Works control, namely the 3-D plot control, is infact an ActiveX control. Yet, its LabVIEW property node does not expose an hWnd property. Does anyone know why? I need this to use a third party reporting tool to render the image of the object on a report page.

. . . I know that this can be done using LabVIEW's getImage method but I want to use the hWnd approach because it gives cleaner report print-outs.

Thanks

Anthony

Is there a way to automate creation of such VIs?

By mouse capture I mean mouse capture:
A control receives mouse events even if the pointer is not above the control. It's useful for dragging among controls, or for a graphical user interface (mousedown>mousemove>mouseup event chain). Without mouse capture if the user accidentally leaves the drawing area during a drag-like operation and mouseup occurs outside, the drawing area gets stuck in dragging mode (mostly). This is a very annoying phenomenon.
However, this is usually only needed in 1-2 controls (or 0 in most cases), so obviously not for everything you have on the front panel.

Mousecapture in win32 programming is very easy. You call Setcapture(control_handle) on mousedown, and call releasecapture() on mouseup. It does have problems (system releases capture because another window gets on top for whatever reason), but these can be handled. And usually the problems are not that severe, or at least doesn't happen whenever the user moves the mouse too fast…

So how to deal with it in Labview?

• No, calling the winapi with setCapture won't work as it works with windows (win32 treats controls as windows) but in Labview by default there is only one window: the front panel.
• Somehow replacing drag+drop functions all controls have some sort of?
• Creating user events for mouse handling and all controls have to handle mouse events and propagate them to the user event?
• Somehow make the control you want to mousecapture a separate window but mimic it's not? +winapi
• Some mouseleave/mouseenter hack and checking button states (but how? you shouldn't mix events with polling)?
• Ditch event structure and go for polling? Or even worse: polling only the mouse in a separate loop and generate user events?
• Some special control (ActiceX?) that has mousecapture using function that's easy to replace and place it invisibly on to of your control?
• Confine the cursor to the control (that's the worst one yet…)
• other...

Thanks for any hints and ideas or stories on the topic and sorry for the inaccuracies in technological terms, it was very long ago when I did win32 programming.

All I want to do is to be able to programatically set the range of a slider (and also its digital display. I had assumed the digital display would take the same range as the slider but apparently they are separate items.)

Anyway, a simple example is shown here and does not work, the Error 1192 comes from the second property node. The first property node correctly sets the slider range. I guess I am being stupid here, can anyone suggest what is wrong with my code?

Temperature Slider.vi

Tree.gvi

As a workaround, I made the legend scroll bar visible from the right click option on the graph and saved it. And I am not changing the visibility through property node and this works fine.

Temp plot testing.vi

Currently developing an UI with custom titlebar like JKI Package Manager 2020, applications from MS Office etc. I have a laptop (1440 X 900) running windows 7 and a second monitor with resolution 1920 X 1080. Scale and layout options for both monitors are set to 100%. 

"FP.State = Maximized" seems to work only when the resolutions for all monitors are equal or selecting the monitor with highest resolution as main screen.

1. Laptop(1440 X 900) as main screen: FP.State = Maximized works fine in Laptop but not in second monitor. The Panel Bounds and Window Bounds are way out of the screen resolution.

Same as in case of JKI VI Package Manager (2020)

2. Setting Window bounds and panel bounds manually:

Some pixels appear in the another monitor when setting the Window Bounds and Panel Bounds manually. This sems to be also the case with NI-Package Manager

Is there a way to make it work?  Any help is greatly appreciated.

Regards,

Nikhil.

Custom Titlebar.vi

1. Configuration/Options Dialog -- Put configuration parameters for different categories (or aspects of the software) into different tabs. This mode of use is probably the most common.

2. Wizard Screens -- Use the tab control for building a Wizard user interface, where the tab's are hidden (the user cannot click on the tabs). Each screen of the wizard is in a different page of the tab control, and the pages are programmatically changed, as the user presses the Next or Back button.

3. System (Dialog) Raised Box Decoration -- Since there are no System (Dialog) raised-box decorations, I will commonly use a Dialog Tab Control with one page and the tab hidden, as a subsitute for a Dialog Raised Box.

4. A Better "Grouping" Mechanism -- An extra benefit of #3 is that the controls inside of the single page tab control are now grouped -- without actually having to use the Group feature -- and can be moved around by simply moving the tab control. If you use a Modern (3-D) or Classic (2-D) tab control, you can even make the tab control transparent.

Can you think of other good uses for the tab control?

I had a clean-but-annoying way to do this until I discovered that Windows10 has a mode that lets the task bar be replicated onto different monitors (and, worse, those taskbars aren't necessarily the same size). The only trick I can come up with is to maximize the panel momentarily and grab the panel size at that moment, but that creates flicker in the UI.

Yes, I am aware of these two properties:

They do not suffice. The first one gives all the monitor sizes without accounting for taskbar. The second one only reports taskbar on primary monitor. If I could be sure the taskbar was only ever on the primary monitor, I can figure it out from this info, but discovering taskbars on multiple monitors was an option throws a wrench in that plan.

This seems like it would be a simple things to do, so I am hoping that I am just making some bonehead mistake.

I have tried setting key focus, array element key focus, selection start and selection size.  None have worked.

Anyone know if this is possible?

I have attached an example VI with my attempts.

array key focus.vi

thanks for any wisdom...

-John

Latching XControl.zip

If there is no shortcut to open the context menu on a selected item, is there a way to programmatically open the context menu on an object using its refnum? That way I could write a Quick Drop plugin to do it.

I am looking for any external code to get blur effect into some of my FP. Is there any chance to blur a text or any  control or the background of the FP window.

Do you know any labview-compliant dotnet components that can realise this and  wich can be easily integrated into a vi. I ’ve searched on the web but my knowlegde about winforms and WFP is null.

Any dotnet solution that could blur the FP background would be wonderfull.

It seems  user32.dll would be able to do that  . But I can’t find the way for this.

Any example on your side ?

Already ok is this :

• I ’m not looking for a way to change programmaticaly  the FP window background transparency . The user32.dll is ok for this.
• I don’t want to blur an image with a gaussian filtre. (I can do that)

My english language is not good, sorry for the mistakes and for the style.☹️

I wonder if we can create application with multiple sub windows like TestStand using LabVIEW? Currently, my application has multiple dynamic call VIs. I can arrange them by specify the location and the size. But I still prefer to have them stay inside something like subpanel but can change side as well as location.

Thank you in advance.

The user can change the number of readings from 7 to 14 through selection.

Sorry for the english, and thanks in advance!

I assume there's no conversion mechanism, and if I use the VI on another OS, or just different language Windows, I will get unreadable mish-mash instead of the proper text?

Is that fixed in LV 2019, or do NI still avoid UTF?

I realize this is not an issue, or at least minimal issue, when you describe things in english and avoid using ascii codes > 127. (though note that even original LV libraries contain OS-specific char codes, mostly a special variants of apostrophe and minus/pause: ` and -.

I though the world has finished moving to unicode more than 15 years ago...

EDIT: Verified on Windows with different language. I do get invalid characters. There is no conversion, LabView just tries to print the characters using current Windows code page, resulting in garbage. How this is still an issue today?

I need to provide the ability to set code page as input parameter to my VI reader.

EDIT2: Now i know everything I need - see "Character Code Issues" chapter:

http://zone.ni.com/reference/en-XX/help/372614J-01/lvconcepts/porting_among_platforms/

It's funny how lack of proper string conversion is called "compatibility feature". Reading the chapter gives you a feeling that LabView supports the conversion whenever possible, but it doesn't seem to be the reality.

I tried setting the Data Entry Increment property to 1 but that did not change this behaviour..

I'd like to adjust the background color of my XCtrl by setting the Color property of the Facade vi's Pane. However, that doesn't do anything.

Instead, I tried to set the color of a decoration in the background. That also didn't work. (Maybe because I'm accessing the decorations reference through the Facade vi's Pane?)

My current workaround is, to place a picture indicator behind the other controls and load an appropriate png file. That seems extremely inefficient, so I'd like to avoid it.

Do you know of any documentation of this limitation regarding Pane properties of XControl Facade vi's? Is there a more efficient way of changing the background color of my XControl?

This is a simple project in which we found a problem.

We want to: launch several copies of the incoming VI driver, serving the same devices of the same type.

In each copy, the binding of the controls to the required shared variable changes programmatically.

Noticed: it is impossible to bind the same type of controls in different copies to different variables.

The value of the SV variable binding path for the control from the last copy of the VI is copied to all previous controls.

Before you begin, you must deploy the library with test variables.

Sincerely, Vitaly.

Binding.zip

Now I have an application which seems to take quite a bit of long time to load up, to the point where users regularly wonder, "Hmm, did I actually double click that? Better try again." More than once I've been right next to the person and told them, "No just be patient, it will show up." only to watch them try again and again to click that darned icon. Well at least I haven't set allowmultipleinstances=true in the ini file. Yet.

I know there will be a constant time as the LabVIEW RTE spins up which is independent of the actual executable I create in LabVIEW. But does the size of my executable also affect load times? I'm under the impression that the whole thing must load, so if it's larger a splash screen can't be shown either way until the entire application has been loaded into memory. I might be wrong here. My current application is at 44 MB, this doesn't seem too large to me...

Has anyone played around with dynamically loading their core application logic from outside of the executable to see if that reduced time to display a splash screen? I figure the best way to do this is have the bulk of my code in a LabVIEW built DLL, then have a shell of a LabVIEW exe display the splash screen and proceed to take its time loading the DLL, after which the splash screen hides itself? The DLL will not be statically linked, a path will be built to it at run time. Or is this road fraught with peril? I've never actually built a DLL in LabVIEW, this might be interesting.

Thanks in advance, and sorry for the english

Anyone had this kind of problem before?

LabVIEW 2014 SP1, Windows 7 Pro. 64 bit.

Tested with LabVIEW 2018 too.

Control1.ctl

Is there any way of plotting multiple graph like for example ( please refer the screenshot)

If i click on just the plot M1 I need to popup another bar graph

Please let me know any suggestions for this

Thanks in advance

Darren and I have been working to get QControls on the priority to become part of LabVIEW Core. If you feel this would be a beneficial to you, please go vote on the Ideas Exchange:

 https://forums.ni.com/t5/LabVIEW-Idea-Exchange/Add-QControls-to-LabVIEW-Core/idi-p/3908067

Please kudo! Thanks in advance!

I also started a thread on the NI Community: UI Interest Group page, here.

I suppose I could hide the browse button and replace it with a regular button...

When I just open this in LabVIEW, not even anything running, my CPU usage jumps from about zero to nearly pegging one of the cores of my PC.

Weird...

Slider_Test.ctl

The reason I'm asking: I'm fiddling with the cosmetics of an Xcontrol. I would have nothing against a larger transparent border, but when I webpublish the big FP using it, the large transparent border turns grey on the snap png.

ETA:, ah, https://forums.ni.com/t5/LabVIEW/How-to-set-front-panel-size-to-be-same-as-one-led/td-p/1565524

ETA2: ok, tried the snippet of that thread and get either no reduction or eloquent "Error 1 occurred at Property Node (arg 1) - Command requires GPIB Controller to be Controller-In-Charge" for tighter sizes.

I have some code designed to fit nicely in 1280x1024 pixels, but some of my customers say that even on a 1920x1080 display the menu bar at the top is cut off. I guess this is probably because their windows scaling is set to some number other than 100%.

In my experience LabVIEW looks really rubbish when run on Windows 10 with this setting to anything other than 100% (blurry and inconsistent). I suppose is to be expected from an application like LabVIEW that is approaching retirement age!

Am I missing something obvious here? Although I always set my Windows scaling to 100% on all the PCs I control it is not really practical for me to expect ask my clients to change this setting as some of them have probably gotten used to seeing Windows text nice and big at 125 or 150%. 

Edit 1 I have done quite a bit of googling and not really come across anything LabVIEW specific. The closest I got was some NI KB about LabWindows.

Edit 2. Success! https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z0000004A7eSAE   Note a newer Windows update adds a few more options which are now tucked away in a separate dialogue. I have not tried playing around with the other options yet as this fix works fine on my PC.

Edit 3. And this is how it can be done programatically: https://blogs.technet.microsoft.com/mspfe/2013/11/21/disabling-dpi-scaling-on-windows-8-1-the-enterprise-way/   (i.e. as part of an installer action)

The attached code will select all boolean from my VI and get the value of each one. Then build a array of boolean that will be used in another VI.

My doubt is about the order of the boolean. In my example there four boolean: 1) "Home", 2) "Ensaio", 3) "Análise" and 4) "Configurações".

How can I ensure the order of the boolean inside the array?

I mean, if a user delete the boolean named "Ensaio" (2nd element of the array) and add another one, it will be the second element of the array or will be last one?

Note 1: I'm using this code because the other users will add or remove boolean from the Front Panel, and I don't want them mess around with the block diagram.

Note 2: Each boolean is customized, having different images each one.

I'm new in LabVIEW, please be patient with me

I was working in a User Interface for my application. My plan is to use a main.vi file and load a subvi in each of the four splitters.

But there are two problems that I cannnot solve:

1) I want transform the part of the code that change the mouse icon into a subvi. But the option Edit > Create SubVI isn't working well because of the boolean value change in the Event Structure

2) When I load a subvi into a sub panel, I want the "mouse icon change" code work inside the subvi. How can I do that without copying the code into the subvi?

As an example, when the first frame arrives then the scroll bar's slider size is equal to the UI element's width.

When the 2nd frame arrives then the scroll bar's slider size becomes the half of the UI element's width.

Similarly when the 3rd frame arrives then the scroll bar's slider size becomes the 1/3rd of the UI element's width

and this continues...

Please see the video in the following link: https://yoshidad-gmail.tinytake.com/sf/MzA2MTc5MF85MTc2NTc2

Please see attached VI as a reference. 

Thank you!

1106_ni_request.7z

My main VI contains a whole bunch of splitters and inserted VIs. These VIs all need to react to Pane Size event of their pane.

The event comes as expected when the user resizes the main window. But it does not come when I programatically set the main FP Panel Bounds or Windows Bounds.

How can I force the event to come? Programatically moving the splitters 1 pixel and back does the trick, but that's an ugly solution.

When I put it into a VI and connect it to "unbundle by name" it has 8 items.

Ring_S2 and Boolean shouldn't be there.   Thinking back, when creating the TypeDef (didn't really know what I was doing, I'm learning as I go along) I probably should have used the "Select a control" right-click menu but I may have dragged some controls onto it or used cut and paste.  I have tried "Show hidden controls" in the TypeDef window and it says there are no hidden ones.  I have tried dragging and resizing items to see if there's anything behind them - still no joy!   Can anyone rid me of these pesky remnants?  Surely I don't have to create a new TypeDef from scratch and replace each instance with the new one - that would rather defeat the object of using a TypeDef.

Thanks

Roger

In a Mouse Down? on a tree, I need to know if the user clicked on a expand/contract symbol, because I need to discard clicking on items but I still need the expand/contract mechanism.
I would need something similar to the InSymbol from the Point To Row Column method, but for the expand/contract symbol.

How can I do that?

I am trying to find a workaround the the missing possibility to set key focus in an array at a specific location by using X-Control.

I am struggling at the point that i manage the key focus in my X-Control to work, but I cannot set to other control. it always stay at the same one...

Is anyone manage to enable key focus on specific element of a X-Control?

Benoit

But all I have is a reference to an XY Graph. When I select the "Value" property, it won't accept multiple plots. It will only accept a single plot.

What property(ies) should I be using to plot multiple plots on an XY graph?

We're about to re-structure our VI source tree and therefore I'm looking for a way to automatically edit/change the VI icons as well. To do so, I want to open all VI's and change the icon text as well as add a new icon layer (on top) and then save this VI (perhaps also rename it, move it to another location ...) The only problem I have - I can (with help of Icon editor API) open the existing VI, get the icon data (separate entries for text, different layers, ...) and adjust them to new informations/texts/icon layers. But it is not possible to write back these changes to existing VI, I can only create a new VI with this data. Or I can overwrite any old icon settings by passing a new icon, loosing all different icon layers and separate texts.

Is there any way to edit an existing VI Icon without loosing the existing icon texts/layers? I even tried to open the original icon editor via script and do the edits with "SendInput" remote control of it's user interface. But didn't find a way to open the icon editor on first hand :-(

So any ideas highly appreciated!

Peter