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Found 7 results

  1. Hello all! I have a problem with registering to GigEVision events with LabVIEW & NI-IMAQdx I work with Teledyne Dalsa Genie Nano G3-GC10-C1280IF camera with GigEVision interface. It's documentation describes several events I can enable at the camera that will be "... sent on control channel when ..." particular situation occurs at the camera - e.g. @exposure end. However, when I wire session wire to Register Events node, I still have options only for "Attribute Updated", "Frame done" and "Plug and Play". I would like to ask you for help in finding how does GigEVis
  2. (If this is not the right forum, please move as appropriate) Yesterday, I was trying to capture the "key down?" event on a string array control. I noticed that the event would never get fired while typing into one of the strings in the array. The event does fire if you type in the index control of the array. My question: Is this expected behavior or a bug? After trying a few things, I can get the behavior I want by getting a reference to the "ArrElem" and registering it for the "key down?" event and passing the into the dynamic event terminal. This is fine for my purposes and will implemen
  3. We have a 3rd party application that can talk to an arbitrary LabVIEW VI (or exe) via ActiveX and can both change and read the controls on the VI (or exe). The problem we are facing is that the ActiveX interface does not support events. This means that if a control registered for a value-change event has its value changed over ActiveX the VI does *not* fire off the value-change event; although the control's value will indeed change. Currently, our developers are working around this issue by forgoing the event structure altogher and using a polling loop instead. My goal is to see if I ca
  4. I did a presentation at NIWeek 2013 on the new user event features in LabVIEW 2013. I will post a link here when it's ready for online consumption. For now, I'd like to start a discussion on what all the LAVA members think of the changes and additions. If you have questions on how one feature or another work, please post here and we'll get it answered. To summarize, here is what was changed, added: New - Event Inspector Window (you're gonna love this!) New - High Priority events New - Flush Event Queue Function New - VI Scripting methods and properties for events New - Mouse Scroll W
  5. I am receiving encoder position values from a DAQ Assistant. After either of the positions DTP or NGTP are greater than a particular value I need to fire an event. The problem is the while loop to acquire the position from the encoders is running in parallel with the main while loop for all the events. This is to enable constant updation of the position values. Below attached, is a diagram of the DAQ Assitant while loop. I tried creating an indicator and used value signalling but it did not work. I also tried using a control (button), but with the parallel loops it doesnt fire the required
  6. Hi lava, I hope you can help me with my problem. The problem that I want to solve (in a proper way) is the following: I have a list of all the *.dat files in a folder. I want this list to update every time a new *.dat file i created in that folder. I don't want to pool the folder constantly so I have solved this problem by using a dynamic event from a .NET action. This is all nice and great. My problem is, that if I change the folder, my dynamic event does not execute when a new file is added to the new folder. I have attached two snippets of the main part of the code. In the
  7. Hello, I try to make application in LV which will start from TS and will receive callbacks from TS as standard UIMessage. All examples which I found was when LV application started TS and then register callback. This is in “simple UI example”. But I want to lunch panel after sequence in TS was started and then register callbacks. Normally to register callback “Application Manager” is using, but I don’t know how to connect this control to TS context. Also I try to use TS.IEngine obcject and connect this with TS via RunState.Engine but still nothing. Could anyone help me to move next step?
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