Tensions of reading in a USB6210 with CVI

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  I see that XP isn't an operating system in 2015 of the CVI.

  Most of our PC are Win7 now, but we have some legacy units which require XP due to a limitation of external controller processor.

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  Alternatively, CVI SP2 from 2013 and 2015 CVI co-exist on the same PC development?

  I would not get stuck with CVI 2013 SP2 for the future just to maintain a few predictable XP-based PC.

  Hi Shr,

  I recommend reading through this community's message: https://decibel.ni.com/content/docs/DOC-23955

  Essentially, you can develop a code in CVI 2015 but set the executable to run on previous versions of the Run-Time Engine. Note that the older version of the RTE of Side-by-Side CVI is 2012. You can indeed install previous versions of the CVI on the same computer. The shared runtime will be set to the latest version. Other versions will be side-by-side. The code is not guaranteed to work with previous versions of the RTE so be sure to test the code locally before moving on to another computer.

• Warning of 'Empty Declaration' ShObjIdl.h with CVI 9.0

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  Oops. It seems that I did a copy/paste error in this post, and Ian never called me on this subject. As I said, he must add a #define, not a typedef:

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• How to read and write FileGlobals with TestStand ActiveX control in c#

  Hello everyone,

  I'm trying to read and write FileGlobals with TestStand ActiveX control in c#.

  I tried with:

  SequenceContext contextOfTraceMsg = e.thrd.GetSequenceContext (0, out frameId);

  var filepara = contextOfTraceMsg.FileGlobals.GetSubProperties ("ProjectParameter.NestIsTested", 0). GetValue (1); (NestIsTested is an array of Boolean)

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  Concerning

  0049 wrote:

  Hello Doug,

  Thanks for the reply.

  It works to read a Boolean value. How to read the table of Boolean?

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  For a table you can either do:

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• Web server with CVI

  Hello

  I want to know if it is possible to create a webserver with CVI so that I can connect my application and see the data with internet Explorer?

  Backround: we run a CVI-application on a computer within a network. On this computer, collect US data from different systems and publish these data in a sign of the CVI. Users who want to see the data, connect to the computer with a remote control software.

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  Thank you

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  As far as I know that it is not supported at the moment.

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  Comment do pay to run a shortcut from the desktop with CVI?
  The application launched by the shortcut must take into account the field "start."
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  the box open or save in Excel by default will be the path "c:\". »
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  Thanks for the help

  Hello

  I managed to do what I wanted with the ShellExecute command

  (HINSTANCE) ShellExecute
  HWND hwnd,
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  LPCTSTR lpFile,
  LPCTSTR lpParameters,
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  INT nShowCmd
  example:
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  NULL,
  "C:\\My documents,
  SW_SHOWNORMAL);

  Thank you still pay your help.

• Alignment of memory with CVI 2013 problem

  Hello

  I just installed 2013 CVI from CVI 2010 and opening my old projects, I'm in trouble with the alignment of the memory.

  Not in all the projects that I opened, I get the problem, and I'm quite confused about this.

  I used to keep in line with the limits of 1 byte of memory and I have thousands and thousands of saved file with this method.

  I have prepared a very simple project (attached to this post) to illustrate the problem, consider that the result would have been with CVI 2010 'occupation of 5 bytes.

  Pragma pack() change his behavior?

  Y at - it a flag set in the Options menu or elsewhere?

  If anyone has a suggestion please help me.

  Thank you

  Sergio

  Hello

  I found the problem, there's a semicolon that follows the directive of preprocessor #pragma pack (1), and it causes the pragma is ignored.

  Remove the semicolon, everything works fine.

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• How to read several channels simultaneously with a minimum

  Hi all

  Please see the attached file. In fact, this is a simplified example of my real application, I didn't understand the second half to reduce the complexity.

  As demonstrated, I have two entries of analago I need to read (position and acceleration) with a SPECIFIC requirement which is:

  At the same time, I make some decisions based on data more recently acquired in the "timed loop. The decision part is not included in this vi. for simplicity. But the fact is that I just need the most recent data (as well as online) make a kind of decisions.

  Everything seems fine and it seems that I collect data in a way desired interval of 1msec. BUT I just discovered that the data I read (in the timed loop) are the most recent one compare is not to the real sensors. In other words, there is a delay in the acquisition process. The value in the timed loop is like 100 msec delayed the release of real sensor, which is generated by the sensor and acquired by DAQ card.

  This problem makes my decision making part of constantly decide according to the before value of 100 msec. Unfortunately, it's terrible to my request, i.e. it is an intolerable delay to the process.

  Are my settings of data acquisition as samples per channel, the number of samples per channel or right of sampling rate? I appreciate if someone can help me with this application. I just need to collect data at 1 kHz, as close as possible in real-time (online) or with a minimum delay, not 100 msec.

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• How to convert times from second to hh with CVI

  How to convert times from second to hh with CVI?

  Can anyone advice?

  It's here. As I told you, it's very simple:

  //----------------------------------------------------------------------
  // Function secToHMSstring ()
  //----------------------------------------------------------------------
  /// HIFN secToHMSstring ()
  /// HIFN The function takes an amount of seconds and returns a string with
  /// HIFN the corresponding value in H:M:S format
  /// HIPAR sec/Value in seconds to convert
  /// HIPAR verbose/If True use "hms" separators; if not, use ":" separator
  /// HIPAR string/The output string. It is responsibility of the programmer
  /// HIPAR string/that the string is large enough to keep the resulting text
  /// OUT string
  void secToHMSstring (int sec, int verbose, char *string)
  
  {
      int     hh = 0, mm = 0, ss = 0;
  
      if (sec >= 3600) {
          hh = sec / 3600;
          sec -= hh * 3600;
      }
      if (sec >= 60)
          mm = sec / 60;
      ss = sec - mm * 60;
  
      strcpy (string, "");
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          if (mm > 0) {
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      return;
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• Sapera LT with CVI

  Now this is heresy...

  Anyone could use a framegrabber DALSA and the Sapera LT C programming API to capture video from a CVI application?

  DALSA announces a C API language, it is not certain that it is possible to work with something else using PVC as a C compiler (which it can do - PCV is also a compiler C89 but not a C99 compiler).

  Thank you.

  You can do with the api of 'base' which is a Sapera ANSI C interface.  I had to UNDEF as some multiply integer type limits, then he compiled, linked and ran everything is OK.  I used the interface "framegrabber' rather than the 'camera' interface or"peripheral"to catch a ground test on a simulator.  I used the CCA and .cvi files that I created using CamExpert.

  I did it with CVI 9.1, WinXP SP3, will undermine LT 7.0.0, X 64 driver 1.5.  Works with single and double head X 64 acquisition cards.

  So using a framegrabber NOR is nice, it is also possible to use a framegrabber DALSA of CVI.

  Menchar

• Sapera LT used with CVI

  Is that what someone has successfully used vision of DALSA, Sapera LT, with CVI library?

  Sapera LT supposedly has a C language interface.

  I have this poster in the forum of machine vision, but he seems to be more a SW problem (if, indeed, there are problems) a matter of HW.

  In principle, any standard interface of C (C89) should work with CVI I think... If it's for a framegrabber DALSA, or anything else.

  I was just curious if anyone had tried this specific thing, and if so, how it worked.

  Thank you

  Menchar-

  It turns out that you can use Sapera LT with CVI 2009.  You use the api 'base' which is an interface in ANSI C with the export header file and import for the DLL library is involved.  During compilation, I found 6 #defines which were redefined to somehow - the limits they were constant max on the different types of integers.    It seemed the stuff of limits.h, but it wasn't - I never figure out how or where he defined twice, so I just #undef had these just before the place where was held the redefinition and the problem disappeared.

  I was unable to use the framegrabber as a "camera" (peripheral), I used as a 'framegrabber"and loaded separately from the configuration files CCA and .cvi instead of a camera (.ccf) configuration file.  I have hooked up to a simulator CameraLink and grabbed a focus, then he wrote on the disk.  A close inspection of the data showed that it was seizing everything is OK.

  I used the 1.5 LT Sapera 7.0.0 and X 64 driver version.

  So I feel pretty good about this so far.

  Menchar

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• Executable built with CVI 8.1 error-5093, the analysis library is not found

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  Hi Tommy,.

  In CVI 8.0, the implementation of the analysis library has changed a static library that is linked to your .exe in a DLL that must be loaded when running. If you rebuild your source code and you want to deploy to another machine where the CVI environment is not installed, then you must re-create an installer in CVI 8.1 distribution, so that he can pack the analysis as well as your program library.

  You can confirm whether the analysis library is installed by searching for C:\Program NIUninstaller Instruments\Shared\Analysis\nianlys.dll in your target machine (although it is not enough to simply copy this file manually).

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• I can't read the .avi files with any program on my system.

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