Detect the dial needle completed the change of value?

Similar Questions

• How to detect the change of focus between applications

  LV2013, Win7

  I have a long operation that so I have to.  Let's call it a "scan".

  I start to a particular folder on the disc and look for files within this framework and in those folders, etc.  I am looking for a particular file (*.lvlibp).  When I find one, I need to open it, look for particular screw it contains and check them for executability (broken) and fix the ConnPane, etc.  I put all the elements of qualifications in a menu (in the menu bar) as the submenus and submenus, etc..

  I do the scan in a separate thread, is not as if I'm blocking anything either, but it takes away CPU time that I would rather not use.

  If I do the scan only once, then the user can go to the Explorer, move a file in place, or rename a folder and come back and I miss the changes.

  Right now, I do whenever the single window happens (the one to which applies the menu).  But this means that round in my application of switching windows causes the scanner again, when there is no chance of a new file that appears.

  I would like to do this scan only when it is necessary, that I define as when I come back from another program (WIndows Explorer for example) this single window in my LabVIEW application.    I am ready to accept the fact that Scripts Windows or remote operations may sneak a file in there.  I don't mean to be bulletproof, just accommodating the more common scenarios.

  I don't want to make a kind of vote - the entire application is event-driven, and I want to keep it like that.

  So, how can I do this?

  If I look at the ACTIVATION VI event, it looks like it happens for ALL VI have activated.  I can attach a name-comparison and detect when the right window is coming forward, but again, simply because this window comes forward does not mean that I need to analyze.

  If I look at the event of ACTIVATION of the APP, it seems to be NEVER called. Even in an EXE file, the event seems never to occur.

  If I had an event to DISABLE the APP, I could set a flag when it happened, and the next time that the right window comes up, I could check the indicator and scan if necessary.

  But I did none of this case.

  Any ideas on how to do this?

  I think what I'll do is just watch the LAST MOD TIME of the parent folder.

  When I do a scan, I hide the LMT of the parent.

  Then, whenever the WINDOW is enabled, I'll check the LMT to the case against my hiding place.

  If it is different, then I scan again.

  Check the LMT takes about 50 uSec on my system, a relatively small price to pay.  And I do it when the window comes up to the top, so I will not notice every little detail of what you do, and I don't have to dig into .NET and assemblies and versions and unnecessary and other error messages.

• Detect the change of the value in While loop

  Hello

  I recently took a code example in examples of using Labview and I'm putting the analog output through my data acquisition card 4461 pxi. I want to have a continuous waveform, but being able to change the volume and the waveform will adjust automatically and be issued through the card.

  In the code, I have everything first to open a .wav file and write it. While playing continuously through the while loop, but I want the signal to change automatically when the volume is changed. I know that I should probably use a structure of the event but the while loop, I use to play the signal will never stop unless the user presses stop so it would play permanently in a structure of the event even when the value changes (I tried).

  So now I try to see if there is a way to make my time stop loop when the volume value.

  You must correct the issues (forget the events if you are not sure of them):

  1. If wire you the digital volume to the wall of the while structure, then the whole in structure only tell that one value that happens on the node and will not read new values.

  2. to read the new values, move the Volume Terminal inside any building (which will shock your other code that depends on it), or use a local Variable inside any node.

  3. to check if the value has changed, you must compare the value to the previous value. To do this, use a shift on the while loop register to store the previous value and then compare it to the new value with the function "not equal?". Wire the Boolean result of this to the conditional Terminal.

  A better way for you might be to wrap the multiplication and Analog Write function into the while loop so that you're constantly replaying the waveform and it's continuously being re-scaled by the volume value. This will mean your volume control is being continuously polled (once per waveform playback) and used to scale the waveform each time. You'll need to figure out how to stop, send and play the waveform once per iteration of the while loop by bringing the Stop VI inside too. 
  

• How to detect the change in the value of the point?

  Hi all

  We want the list of all the goods that the customer chooses, TileList is used to display all the information about the goods and a custom component MyItem is used as ItemRenderer. Meanwhile, a tag is used to display the sum of all the goods. The hierarchy is simply like this:

  <? XML version = "1.0" encoding = "utf-8"? >
  "< mx:Application xmlns:mx ="http://www.adobe.com/2006/mxml"layout ="absolute">"

  < mx:TileList id = "tl" dataProvider = "{acGoods}" ItemRenderer = "MyItem" / >

  < mx:Label id = "labelSum" / >
  < / mx:Application >

  Here, acGoods is an ArrayCollection collection which I believe may be linked.

  The user can change price in MyItem directly, so no need to update the text of the label as well. I find that acGoods contains the last price. Now the problem is the text of the label remains the same. I tried to call the calculation function in set acGoods(), but it does not work.

  Please don't not event expedition sugguest because this is a simplified scenario based on only. If someone tell me how to implement this in conjunction fluxhing, it'll be very useful.

  Best wishes

  protected function get totalLabelText (): string {}

  for each i: var * in acGoods and so on

  return 'label calculated here;

  }

  MyItem Inside:

  Once you've changed something to invoke:

  Application.application.executeBindings (true);

  Hope it will work for you

• Problem with the change in value of listbox event

  Hello

  I have a problem with the help of Listbox value change event. The code that I have attached is a simplified version of the largest program, but the problem is the same. One of the loops of Nonna is responsible for handlig occurring events ant the other is responsible for the execution of the program. In the project of oryginal I use a listbox control to determine which plots graphic display of a waveform is visible (first position of the listbox-> only plot first visible etc.). In the attached vi, I just show the current value of the listbox control. The problem is the event runs only once and then the program crashes. I want to be able to change the value of the listbox work both at idle and in State of a program, but when I put the structure of the event in both States, he does not. I'd be very grateful if someone smarter than me could tell me where I made my mistake. I want my program to be able to manage the keys and listbox events in States (slow down and knit) program.

  You have two structures of event in two cases different from the structure of the case, and both are tuned to listbox events has changed. Because only once can be triggered at any time, the VI crashes (lock events the front panel (default) until the event can complement).

  You must use a unique event structure managing all events.

  The overall program architecture looks like inside-out for me.

  For the buttosn, you must use action lock (switch not release!) and use the value changed events.

• Refreshing a report on the change in value of the selection list

  -Very well, this should be very easy, but I can't seem to do things.
  
  I have 2 items on a page: a list of selection and a report.
  
  The report contains a WHERE clause that uses the value of the selection list.
  
  So when I change the value of the selection list, the report needs to be recharged.
  
  I don't want to use a 'Redirect and set' when I change the selection list, because I don't think it's very pretty.
  
  So I created a dynamic action that updates the State when the selection list is changed.
  
  Now for the problem: the report get updated, but the new value of the selection list is not used!
  
  How can I make select the value of the item to be stored in session state?
  
  I can't find this option anywhere in the parameters of the dynamic action.
  
  Thank you.

  popovitsj wrote:

  How can I make select the value of the item to be stored in session state?

  I can't find this option anywhere in the parameters of the dynamic action.

  It is in the region of report definition: Page to submit items in the Source section.

• Why, after all these years, can not Thunderbird automatically detect the character encoding

  Judging by all existing messages and complaints on this issue, not to mention the erroneous messages that say that the problem is resolved when it is not, I must conclude Mozilla either does not believe it is a problem or doesn't care to fix it. The key is that there is no way to tell Thunderbird to automatically display the emails in the character encoding format that they were written in. I could understand the case where headers are not properly filled, but I see tons of emails in which coding is clearly in the headers in the message source. You can force, but if you do the menu VIEW-> encoding-> UTF8 character (for example) it doesn't 'glue' If you post another message. But who wants him 'stick' at all times even when? What the average user really wants is to be able to toggle the VIEW-> character encoding-> auto detect the default 'off' value simply "on" and don't have to bother with it more.

  This is a problem that seems to go on forever, and it NEVER happens with other e-mail clients. If there is some backdoor way to actually autodetect working, I would know about it. But more importantly, I think that all users would appreciate it if this was not some secret arrangement 'backdoor', but a choice of menus overall simple for all accounts. Can Mozilla if you please fix this problem once and for all?

  Can you tell us what you heard:
  Tools > Options > advanced > general tab
  Click on Config Editor

  At the top of the search page of type:
  Mailnews.force_charset_override; Value = "false".

  Do you like value... true or false?
  If Value = 'True', double click on the line to switch to "false".

  close window - top right X
  Click OK to save the changes to the Options.
  Close and reopen Thunderbird.

• Find cell that caused the event change of value on table

  Hello

  I have a table, it is essentially a 2D channels table... I have a case of the event, he put in place to trigger if there is a change in value on my table.  Anyone know how can I know what my case of the event enabled cell? What element of the array has been the change of value?

  My table is large and has some extended channels, I'll try to find the row and column clues to the corresponding cell that has been the change in value.

  Thank you.

  Well Yes, there is a better way:

  

• Activate the button on change of value selectOneChoice

  Hi friends,
  
  I use JDeveloper 11.1.1.5.0.
  
  I slipped and fell a selectOneChoice of the data control, and a button of the component palette.
  
  Now, I want to just turn the button on the change in value of selectOneChoice. If the value is not changed while the button is disabled.
  
  Please help me.
  
  Thank you
  
  $@M$

  Hello
  in your button set off a real.
  then do a valuechangeListener to your selectoneChoice with true autosubmit.

      public void change(ValueChangeEvent valueChangeEvent) {
          //getMyButton is component binding(RichCommandButton)
          getMyButton().setDisabled(false);
         //refresh component
          AdfFacesContext.getCurrentInstance().addPartialTarget(getMyButton());
      }
  

• Should the change detection have limited triggers?

  Hi all

  I use the change detection in an event model (as in the example) and I get only a finite number of events.

  It varies between 350 and 750 events.

  This poses problems for it to be implimented in a system permanently running.

  Any suggestions

  PXI-6289

  LV 10.0.1 real-time 8195.

  Many Timmar,

  have you checked your block diagram to make sure that it uses "continuous samples."

  The example uses the default value (finite samples), which is to show you the basic operation, but becomes a problem if you want to do multiple events over a long period.

  This change and restart your code.

• How to detect BIS support the change?

  Hello world

  I work and test network events manages the real device. I tried to detect the moment where we get actually BIS taken in charge and when we lose it really. Whenever you have granted with a new RIM service, a network event is launched and captured by your camera in the eventOccured() of the GlobalEventListener interface method.

  When I did not warn service RIM yet and I subscribe to a RIM service can I get BIS support channel at the same time. You can send an http request via the BIS mode then and it will pass through. Instead if you do not inform service RIM of your HTTP via BIS will fail and you will have to try again via another channel like WAP for example.

  My question is: How do I know if I just got with the support of channel BIS? There are some methods such as

  CoverageInfo.isCoverageSufficient(CoverageInfo.COVERAGE_BIS_B)
  

  But this always return the same answer: cover just enough even when you're not on granted with the support of BIS.

  So, if anyone knows how to detect this status change, I would be very grateful to meet with her

  Thanks in advance for your answers.

  ++

  Check this.

  This could help you.

  What is - Network Diagnostic tool

  http://www.BlackBerry.com/knowledgecenterpublic/livelink.exe/fetch/2000/348583/800451/800563/What_Is...

  Cheers!

• My pc has detected the error: hardware changes would have no problem detected.

  Original title: my pc encountered chnges hardware could not be detected problem, when I visited my troubleshooting... im running windows7 family Basic... What am I going to do to solve this problem.

  my pc hardware met chnges could not be detected the problem when I visited my troubleshooting... im running windows7 basic family... what will I do to solve this problem, id already run microsoft fix in my pc but nothing is changed, I went to to see Device Manager if there is a problem, but I see no problem in Device Manager What does this problem mean? Please help me, your answer will be...

  Hi Javedpasha,

  1. when exactly you receive this message? Are you facing problems using USB devices?

  2. what Fixit did you run?

  3. What is the brand and model of your computer?

  4. What is the full error message that you receive?

  5. have you made a recent software or hardware changes to the system?

  This error occurs generally when the audio / sound does not work.

  Method 1:

  You can check the manufacturer's Web site and try to install the latest version of the drivers for the chipset, sound, network card and the display.

  For more information, see the article:

  Updated a hardware driver that is not working properly

  Method 2:

  You can also try to run the hardware and devices Troubleshooter and check if it helps:

  Open the hardware and devices Troubleshooter

  Disconnect external devices attached to the computer (except the keyboard and mouse) and check if it helps.

• I need help to write a script that detects the first instance of a paragraph style and then change

  I need help to write a script that detects the first instance of a paragraph style and then he goes to a different paragraph style.  I don't necessarily need someone to write all this, by the biggest problem is to find how to find just the first instance of the paragraph style.  Any help would be greatly appreciated, thank you!

  Hello

  then try this with your active doc:

  ....................

  myDoc var = app.activeDocument;

  mStyle var = myDoc.paragraphStyles.item ("PS_NameToFind"); change the name to paraStyle

  var mStyle_1 = myDoc.paragraphStyles.item ("PS_NameToChange"); change the name to paraStyle

  var mFrames = myDoc.pages.everyItem ().textFrames.everyItem () .getElements ();

  app.findTextPreferences = null;

  app.findTextPreferences.appliedParagraphStyle = mStyle;

  for (var k = 0; k)< mframes.length;="">

  {

  currFound = mFrames [k] .findText ();

  If (currFound.length > 0)

  currFound [0] .paragraphs [0] .appliedParagraphStyle = mStyle_1;

  }

  app.findTextPreferences = null;

  ................

  Rgds

• Detect the fields changed in form

  Hi all
  
  I want to build a 'history' function in my Apex application.
  
  My idea is to save all the changes to an existing record in a new table, but I have some difficulty to find the best way to do it.
  
  I thought of it this way: once the user change the record and submit the form, ONLY changed fields will be saved in the new table of history. The fields which have no change will be ignored.
  
  My problem is: how to identify modified fields? Maybe create a function that will compare all the fields, one by one, with the existing and detect changed him, but doesn't look like a very effective way.
  
  Does anyone have a better solution? Someone has already done something like this?
  
  Thank you!

  I know that the easiest would be to use a database trigger.
  See for example the old post from Tom Kyte
  [http://asktom.oracle.com/pls/asktom/f?p=100:11:0:P11_QUESTION_ID:59412348055]
  Kofi

• How to detect the direction of the mouse and change of scenery?

  Hello

  I'm building a single 360 degree rotation effect using individual images and buttons front and back . I am new to AS3 and have managed to create functioning buttons... (so my code can be a little weird!)

  But now, I would also like to advance frames by clicking and dragging on the image itself (or on an invisible button sitting on top of the image).

  Although there are some threads here that have asked the same thing, I don't understand how they were answered. My code is below, and the file with that I'm practicing is located on:

  https://download.yousendit.com/MVNjeFlWSWh6NE4zZUE9PQ

  Currently if you click on the area of the image, it will move forward, but there is no code to detect the direction of the mouse, he'll just before. Can someone help me understand how to set up a simple direction detection and then use it to decide whether to move forward or backward... Thank you!!

  Stop();

  move forward 1 frame on click

  function forward(e:MouseEvent):void {}

  If (currentFrame == 15) {}

  gotoAndStop (1);

  { } else {}

  gotoAndStop (currentFrame + 1);

  }

  }

  go back 1 frame during the click on

  function back(e:MouseEvent):void {}

  If (currentFrame == 1) {}

  gotoAndStop (15);

  { } else {}

  Stop (currentFrame - 1);

  }

  }

  btn_fwd.addEventListener (MouseEvent.CLICK, forward);

  btn_bck.addEventListener (MouseEvent.CLICK, return);

  change frame on direction of mouse?

  function MouseMove(event:MouseEvent):void {}

  {

  if(event.buttonDown==true)

  If (currentFrame == 15) { }

  gotoAndStop (1);

  }else{

  gotoAndStop(currentFrame + 1);

  }

  }

  }

  
  

  stage_btn.addEventListener (MouseEvent.MOUSE_MOVE, MouseMove);

  Here's an almost identical thread, I answered: http://forums.adobe.com/thread/570903?tstart=0