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Home Community Idea Exchange LabWindows/CVI Ideas

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18 Kudos
Wolfgang

Update Microsoft Windows SDK support from 8.1 to 10

Status: New Submitted by Trusted Enthusiast on 03-16-2018 06:30 AM 4 Comment

The CVI Full Development System supports Microsoft's Software Development Kit.

I'd like to suggest to update this support to Windows 10 SDK.

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10 Kudos
Wolfgang

Make cvi.exe a 64 bit application

Status: New Submitted by Trusted Enthusiast on 11-06-2017 11:27 PM 1 Comment

It appears that cvi.exe can run into serious memory problems for larger projects due to a memory-hungry generation of source code browse information.

The solutions suggested (* don't generate browse information for larger projects or * don't use larger projects) are not too helpful. In my opinion, a much better solution would be to provide cvi.exe as a 64 bit application.

Because a crashing CVI is a serious limitation I hope this wish will make it soon.

Thanks...

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13 Kudos
kabarr

Add callback events for MultiTouch Capabilities in Windows 7 to LabWindows/CVI

Status: New Submitted by Member on 02-08-2012 10:12 AM 2 Comment

Please conisider supporting multi-touch screen gestures in a similar manner to the mouse events.  Windows 7 Mulittouch capabilities are a good place to start. http://msdn.microsoft.com/en-us/magazine/ee336016.aspx

 

The GUI of the future will most certainly be touch screens, and users expect to be able to use gestures such as pinch, fling, spread, rotate, etc.

 

 

 

 

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5 Kudos
Wolfgang

Fix 'Busy Wait'

Status: New Submitted by Trusted Enthusiast on 10-14-2012 05:15 AM Comment

Starting CVI the IDE uses cpu resources even if sleeping, i.e. doing nothing except waiting for user input. It seems that the IDE is also using the scheme of SetSleepPolicy...

 

Today most other software does better and I would like to see an improved behavior: use cpu (and thus energy...) only if something actually needs to be done

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2 Kudos
TECHNOFASE

CVI Application start as service

Status: New Submitted by Member on 10-03-2012 02:39 PM 1 Comment

Please consider the possibility to make one option to set the application as Windows service, so i can start it on windows server BEVORE the logon is done.

Very usefully !!

1 Kudos
Laser

Avoiding recursive warnings while debugging

Status: New Submitted by Member on 01-07-2014 01:28 AM 2 Comment

Hi,

 

in many of my applications, I have to verifiy some conditions recursively and they can generate an error, for example when checking the presence of a file (see below).

RecursiveWarning.JPG

Imagine to have a task doing this control and imagine the task is scheduled every 5 seconds or less.

This means you'll get the popup window continuosly and it makes almost impossible to debug your code.

I know I can reduce the Debugging level from Extended or Standard to No RunTime Checking in order to block that popup window, but sometime I need a deeper level of debug to fix my problems.

What do you think about adding a third button to ignore, for the current debugging session only, the run time errors generated from the same instruction in the same thread?

More, what do you think about adding a fourth button to ignore, for the current debugging session only, the run time errors of the same type?

 

Regards

Sergio

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1 Kudos
RobertoBozzolo

Ability to customize "Find in Table Cells" dialog

Status: New Submitted by Proven Zealot on 09-20-2013 03:01 AM Comment

Tables are often used to display test results organized in columns, which means the user very often has to search a particular column for a specific value. At present the "search vertically" checkbox is not checked by default in Find in Table Cells dialog, which means the user has to explicitly select it otherwise the search could locate the wrong cell.

 

What I would like to have is the ability to programmatically set the relevant default options on the dialog before it is shown. With this I mean:

  • Show/Hide/Dim some elements
  • Preset some value (like checking the Search Vertically option)

 

FindInTable.png

 

( Tested with CVI 2012SP1. Not yet installed 2013 )

1 Kudos
Johannes_T

Add Column Attribute To Set Column Width In Percent (Proportion)

Status: New Submitted by Active Participant on 07-08-2013 07:31 AM Comment

Add an ATTR_COLUMN_PROPORTION (tree or table control) column attribute to set the width of a column in percent.

A second attribute could be added, to maintain column width proportions, in case the user is resizing the columns.

1 Kudos
vix

Handling of NAN values in PlotScaledIntensity()

Status: New Submitted by Active Participant on 09-26-2012 01:15 AM Comment

In this thread it has been discussed how PlotScaledIntensity() handles NAN values.

In CVI 2010 SP1 NAN values are plotted with the center-scale color (and this is a bug).

Unfortunately the fix is not easy, and there could be different ideas on how NAN values should be handled.

 

I suggest not to plot NAN values, or to plot them transparent so that the plot area size is visible under NAN pixels.

When you use NAN values in PlotY(), for example, this points are not plotted.

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0 Kudos
ASIC_LabRat

Process System Events callback

Status: New Submitted by Member on 04-02-2014 05:38 PM Comment

As discussed here: 

http://forums.ni.com/t5/LabWindows-CVI/how-to-make-visibal-and-disable-a-control-within-a-tab/td-p/1073548#

LuisG called out that the ProcessSystemEvents() may or may not clear all of the System events queue. Could this callback return a percentage scorecard or a Boolean reply on the status of events?

0 Kudos
Laser

Avoiding recursive warnings while debugging

Status: New Submitted by Member on 01-02-2014 05:18 AM 2 Comment

Hi,

 

in many of my applications, I have to verifiy some conditions recursively and they can generate an error, for example when checking the presence of a file (see below).

Imagine to have a task doing this, and imagine the task is scheduled every 5 seconds or less.

This means you'll get the popup window continuosly and it makes almost impossible to debug your code.

I know I can reduce the Debugging level from Extended or Standard to No RunTime Checking in order to block that popup window, but sometime I need a deeper level of debug to fix my problems.

What do you think about adding a third button to ignore, for the current debugging session only, the run time errors generated from the same instruction?

More, what do you think about adding a fourth button to ignore, for the current debugging session only, the run time errors of the same type?

 

Regards

Sergio

Labels:
0 Kudos
tstanley

Ability to add events to the event que while debugging.

Status: New Submitted by Active Participant on 08-29-2013 07:49 AM Comment

Hi.  I find occasionally that it would be handy to be able to add items to the event que through the debugger.  Like, for example, to call a callback function as if the user had interacted with the user interface.  This would be especially handy for remote debugging, where I could add in an item in the que as if a button had been pushed on the user interface without having to physically walk over to the debuggee and push the button on the screen.  I'm not sure the best way to implement this, and I can picture some pretty sophisticated interfaces.  However, something simple could be perhaps a screen like the function panel for CallCtrlCallback(...) where I could enter in the Panel handle, Control ID, Event, etc. and have the event added to the event que?  Thanks.

0 Kudos
MAPJ

After doing Find operation,Discard find results on next compile.

Status: New Submitted by Member on 07-18-2012 01:00 AM Comment

After doing Find operation,Discard find results on next compile.

We do find operation lots of time and we see its find results below.

In same result area, we also see error and other messages.

But once we do find operation its results are retained till we close project.

Its actually confusing for programmer,when he compile he feels that there is error.It should be discarded on next compilation.It has no use once user see find result.So it should be discarded.

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0 Kudos
Jäger

CVI Lizenz

Status: New Submitted by Member on 06-25-2012 02:49 AM 4 Comment

Wenn ein Rechner nicht am Nezt ist, vielleicht das Kabel nicht richtig drin oder am Platz kein Netz mehr frei ist, dann wird CVI mit einer eingeeschränkten Testlizenz gestartet und würde dann eine EXE generieren, welche in der Laufzeit eingeschränkt ist. Oft ist es der Fall, dass jemand CVI ohne Netzt started um im Quelltext etwas zu kontrollieren. Zu einem späteren Zeitpunkt erstellt jemand eine EXE neu und bemerkt nicht, dass das gestartete CVI keine Lizenz hat, obwohl der Rechner Netz hat. Er müsste erst CVI neustarten um die Lizenz zu holen.
Den Fehler bemerkt er erst am Folgetag, wo das Programm mit einem Fehler abgebrochen wird.
Es wäre aus meiner Sicht sehr sinnvoll, dass eine EXE, welche durch CVI ohne Lizenz erstellt wird, auch einen Popup mit eingebaut bekommt, welcher hiervor warnt.
Auch eine Abfrage, welche der Progrmmierer in sein Programm einbauen kann wäre sehr Hilfreich.

0 Kudos
Wolfgang

Smarter (or correct) EVENT_VAL_CHANGED

Status: New Submitted by Trusted Enthusiast on 06-21-2012 06:26 AM 7 Comment

Hello,

 

I just discovered a strange and unexpected behavior of EVENT_VAL_CHANGED which requires that I will have to double check all my previous software written in CVI...

For some reason I have assumed that if the EVENT_VAL_CHANGED is triggered on a numeric control the new value will be different from the old one. This may not be true - the value may be still the same!

 

Since for more experienced users this seems to be a well-known fact I doubt that NI will call it a bug, hence I am suggesting an improved behavior Smiley Wink: Please, for numeric controls, fire the EVENT_VAL_CHANGED event only if the numeric value has changed...

 

(Right now, if the numeric control displays 1.0000 and I enter '1 ENTER' the value remains the same (at least), but the EVENT_VAL_CHANGED event is triggered...)

 

Thanks

 

PS: Also the documentation seems to be misleading: It (in CVI2010) states:

 

The EVENT_VAL_CHANGED event is generated continuously while the user is performing an ongoing action which results in the value of a control changing.

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0 Kudos
Laser

Losing control of applications running in maximized mode!

Status: New Submitted by Member on 06-27-2011 01:47 AM 2 Comment

Running an application in maximized mode (with main window covering the task bar), if you switch to the desktop (i.e. pressing Windows key+D), you are no longer able to return back to your application. You will see your application button in the task bar, but nothing happens clicking on it, nor you successed using Task Manager, you have simply lost your application.

Imagine you need to use a program in maximized mode and the program controls production tools and machineries, involving money and safety issues, it is an embarrassing situation.

I hope you can fix it soon, today I've fixed it training the operators to avoid the hanging sequence.

Thank you.

Sergio

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