Function of variables to import

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• Functional Global Variables: an indicator can be used instead of a shift register?

  It is a simple question, but I can't find an answer to it. The model agreed to a functional Global Variable is to use an uninitialized as in this example shift register:

  

  ('Référence IN' and ' Reference to "is actually a pile of references.) There is also a "Se Refnum" case, which comes the straight through the tunnels shift register.

  My question is, why can't we do store the indicator data? It is much simpler to use a shift register (IMHO a non obvious way to store global data!):

  

  The case "Se Refnum" does absolutely nothing. Other functions such as erasure of data can be implemented just as easily. The advantage of the FGV to help avoid race conditions is maintained because you always use the VI to access the data.

  JonP says:

  
  

  Not so much, the Inidicator can happily live outside the case structure, together and Clear would be just assign different values.

  If you have only a case structure, the indicator could not live outside of it.  In order to maintain the indicator data, your design requires that it is not written in for a case of Get.  If you have an exterior structure deal that decides on 'Get' or 'set or clear' and (in the case of "Set or clear") contains the terminal of the indicator and a classiquee case that decides on 'Set' or 'clear '.  However, I would consider this a design below using the standard template of the FGV.

  The difficulty with retrieving the value if you want to do a read operation / writing change. But LV provides many ways to retrieve data from an indicator (one you don't mention is the 'Value' property), do you mean that's all "incorrect"?

  Yes (I mean that they are all incorrect).

  You could hack your way around the design to work with a single structure of matter and the terminal of the indicator being outside using a method to read the value of the indicator and through a tunnel to the structure of the case through wiring for the tunnel of writing indicator in the case of 'Get '.  However, who will require a local Variable or value of property node.  As I said, these (I only mentioned the local Variable originally) are not good choices for performance and scalability.  If you are not aware of the functional differences between the terminals, local Variables and nodes of property value, refer to this article (obviously advantages/disadvantages such as redraw objects on the front panel are not relevant here).

  I guess you could say that indicators should only be written, but it is difficult to be pure!

  No, it's not, just use the classic design of the FGV!

• Functional global variables with polymorphic VI

  Hello

  I am keen to build a functional global variable in a polymorphic VI. So, for example in a functional global variable, we have case structure. I want to build separate VI for the structure of the case and make a polymorphic VI.

  Is it possible that I could use a polymorphic VI rather than business structures?

  Thank you!

  You could create a polymorphic VI that serves as a wrapper for the FGV.  The idea is that each instance of the polymorphic VI called FGV with selected appropriate case-sensitive.  Then your API is the polymorphic VI instead of FGV.

• Functional Global Variable reference

  Hi all

  I want to update the value of the indicator element in primary VI, I don't want to use the global variable, due to the problem of race condition. So I create a functional global variable to control reference. It is reliable and can avoid the race condition critical?

  I have attached two Test VI.

  Thanks for your advice.

  Personally, I use user events to send data to the main VI and then he can update the indicator.  This generally works very well since most GUI screws using a Structure of the event anyway.

• Functional global variable pending

  Hi all

  I understand, by threads of reading on the forum, that a call to a functional Global Variable will block its execution if the FGV is already consulted one another VI, correct? Is there another way that it would block, apart from those shown?

  The reason for the question is that I have a (non-reentrant) FGV which is read by 8 subVIs simultaneously (they are, in fact, the same vi, but configured for returning) and whose time strangely, access varies based on the number of the subvis running.

  In less than 5 screws are trying to access the FGV, execution is blocked (I guess, because when the FGV is disabled and replaced by a constant there is no problem with running) and access lasts less than 50ms. If this number is between 5 and 8, execution is carried out much faster. My first assumption was that FGV has not been initiated until we call the fifth sub - VI, but I don't know how to check that.

  I can understand that there is something wrong with the FGV, but can't put my finger on. Any ideas?

  Thanks in advance for any help.

  
  

• Impossible to go from baseline of connection via functional Global Variable

  Hello

  I'm working on a project of producer/consumer based, which some parties have access to a MySQL database. After the connection to the database, I want to store the reference to the connection inside of a functional global variable. Then other parts of the project that need to use it can only read in the functional global variable.

  For some reason, the reference of the connection is not valid once it has been read functional global variable. It works fine if I have the reference directly from the connection to the request for enforcement VI wiring.

  I have attached a few screws that show the problem, but you will not be able to run them unless you have a database to connect to and hack you the query a little so he selects in your tables.

  SQL_whole_thing works very well. It connects to the database, returns information he requested by the query, and then disconnects. No problem.

  But if I run DB_Connect.vi (which stores the reference to 'DatabaseID_FGV' FGV), follow-up of SQL_Query.vi (which reads to the FGV reference), then I get an error saying that the reference is not valid.

  Anyone has an idea why this happens?

  Thank you

  Christian.

  PS: You'll need DBID_FGVActions.ctl and database_connectioninfo.ctl, also attached

  Your referance on the SR's "outdated" when implementing this way.  Essentially, this means that data in memory to this referance has changed because the referance was stored.  Just because you have changed the data at this location.  This prevents you from spend a refeance for the "old data" and crashing the calling application since the referance Rassi contains assumptions that are more adequate data.

  Consider upgrading this FGV powered Action.  This would be encapulate all the Actions you want to do to the database (connect, disconnect, fecth, writing etc.) and maintain the current referance on the AEs shift register.  Ben establishes a great deal for just this type of functional encapsulation in his famous nugget.  A must read for every programmer

• How to trace all the functions and variables Movie Clip

  How can I find all the functions and variables available Movie Clip?  Thank you

  Use the describeType() function.

• How can I create a function using variables TestStand and call from Meadow step Expression?

  In one sequence, I have dozens of prior Expressions, which are almost the same thing, like this...

  Locals.tagID = (Parameters.singlePhaseEnabled? ('L': "D") & Str (Locals.phase) & "006".

  .. and the only thing different is this three-digit string in the end ("006" may vary). How can I write a function that I can call from Meadow step Expression then it should look like this? ...

  Locals.tagID = MyNewFunction("006")

  You can not write custom expressions for commands.

  That being said, there are two options:

  • Create a sous-suite with a single step. Use a setting of the sequence as "function parameter.
  
  
  • Create a step type custom including a lower level module that implements the function. Add a step edit to allow the user to the steptype graciously change the setting.
  
  
  • Store the variable setting in a local global variable / file and change the value in each step. This will, at least, keep the same 'function' for each step.

  Norbert

• Can I have a single function and variable with createjs names when publsihing of Flash?

  Hey everybody!

  I recently started to use the Toolbox for exporting CreateJS to turn the little button icon animations, done in Flash, content for HTML5. I created 3 files of ".fla" separate icon that animate when spilled.

  With that tag added in my html5 document example, animation works very well:

  < canvas id = "about_btn" width = "85" height = "70" style = "background-color: #FFF" > < / canvas >

  However, once I added several canvas tags, only one icon would be on screen:

  < canvas id = "about_btn" width = "85" height = "70" style = "background-color: #FFF" > < / canvas >

  < canvas id = "news_btn" width = "85" height = "70" style = "background-color: #FFF" > < / canvas >

  < canvas id = "contact_btn" width = "85" height = "70" style = "background-color: #FFF" > < / canvas >

  I discovered that the JavaScript files generated with each 'FLA' file were opposed because they were all using the same variable and function names (Stadium of the exodus, canvas, init(), etc.). Is it possible for me to publish the JavaScript of Flash code with variable and function names specific document? (e.g. about_stage, about_canvas, about_init())

  A work around methood I currently using puts each < canvas > tag in its own iFrame.

  Thanks again for the help!

  -DJ

  Asset JS libraries shouldn't conflict between them, unless there are symbols with the same name. Even in this case, you can change the names of symbols for each FLA avoid collisions.

  Looks like you are trying to copy and paste the code on the HTML preview. It is not really designed for it, and this will lead to collisions of names. You want to rewrite this logic in your own HTML code (code overview using as reference), or rename the variables as appropriate, after you copy and paste.

  Best,

  Concession.

• load a SWF into another domain and access its functions and variables

  I need to load a swf file into another domain and call its functions and access to its variables, in the same field, I can load and access its functions successfully, but in different areas not.

  control the class security.  Depending on the browser version that you're targeting you might be able to get out of the allowDomain() method, but you'll probably want to use a cross-domain security file.

• PL/SQL-function with variable number of parameters

  Hello
  
  I want to write an INLIKE function that combines the functions of the po and AS operator.
  I want to call it that:
  
  SELECT 1 in the table where INLIKE (column, Motif1, pattern2,...) with a variable count of bosses.
  
  Is there a possibility the java selection button (String... stringArray) to declare or to make, I have to define a function with multiple parameters and default values?
  
  With greetings
  
  Florian

  You don't need to write a function no., you can use regular expressions REGEXP_LIKE...

  for example to find all the rows that have % ED % or % LY in them...

  SQL> ed
  Wrote file afiedt.buf
  
    1  with t as (select 'FRED IS SCARED' as txt from dual union all
    2             select 'EDWARD IS HAPPY' from dual union all
    3             select 'BOB AND TIM ARE ASLEEP' from dual union all
    4             select 'JIM AND SALLY DO NOT CARE' from dual)
    5  --
    6  -- END OF TEST DATA
    7  --
    8  select *
    9  from t
   10* where regexp_like(txt, '(ED|LY)')
  SQL> /
  
  TXT
  -------------------------
  FRED IS SCARED
  EDWARD IS HAPPY
  JIM AND SALLY DO NOT CARE
  

• public to package functions and variables via dblink

  It is possible to call a public global variable in a package in a database to another package procedure in another database use a database link? If so, could you let me know the syntax? Same question to package functions.

  Hello

  Check this link documentation especially the stmt...
  http://www.MCS.csueastbay.edu/support/Oracle/doc/10.2/AppDev.102/b14251/adfns_packages.htm#i1007858

  You cannot access remote package variables and constants.
  

  Maybe you can write a function in terms of the distance which, once called will returns the value of the variable.

  to call remote packaged functions...

  [documentation syntax is [[schema.] plan.] function_name[@dblink] [(param_1...param_n)]

  an example given in the link above for this...

  RUN fire_emp1@boston_server (1043);

  Ravi Kumar

  Published by: ravikumar.sv on August 31, 2009 11:29

• Calling functions / set variables in loaded SWF

  You know how you can create a Movieclip object, add a function or a variable, and then call this function or change this variable to the SWF file that includes? I want to be able to do it, only with SWFs that are loaded at run time.
  
  My "main" SWF is just something the type of menu. The user clicks a button in my HAND. SWF and the HAND. SWF and then load the SWF associated with this button, using the AS 3.0 method Loader () - URLRequest () - addChild () that everyone always asks questions on prescribed.
  
  It works very well. But now I have a few custom and other objects (ie., not only the channels) in my HAND. SWF I want power sharing with the loaded SWF files. preferably, I'd use a function of the type of accessor (ie., LoadedSWF.GiveMeTheCoolObject (MyCoolObject)); Although at this point, I'm willing to hack the object itself (ie., LoadedSWF.CoolObject.CoolField = MyCoolObject.CoolField ;) if that's what it takes.
  
  I tried to call the functions and setting the fields, but the AS 3.0 compiler doesn't care for this kind of nonsense on its objects defined by the generically. Also note that, at runtime, a call to LoadedSWF.hasOwnObject ("GiveMeTheCoolObject") returns true.
  
  So my colleagues big brain, what is the magic?
  
  In advance, thank you for the help!
  Scott

  Kglad,

  Quote:
  Posted by: kglad
  the error message, seems, your function expects a member of the class MyCoolObject, correct?
  and MyCoolObject is not an instance of this class. so, you have to fix that. That is to say, create a member of this class, and use this class as a parameter of the function member.

  Heh, that's what the error message says all right. But the object IS actually an object of class MyCoolObject. I looked at this thing for hours and MyCoolObject IS an instance of this class. I tried different combinations of casting (including the cast on an object and passing that) but had no luck whatsoever.

  So I googled this particular runtime error message ("Error #1034: has no Type constraint: cannot convert '" ") and found a ton of links to other people with a similar problem. As a general rule, the problem was just as you say, someone passes a button as a string, that kinda thing. But a guy had a problem with an object that it has derived from the event class. Once the hours spent trying to make it work, he has tried to override clone() of the base class method and got it to work:

  http://www.assertTrue.com/articles/2006/10/14/custom-events-in-ActionScript-3-0

  As for my project, I took a long, hard look at the overall architecture of my project and decided it would be better if all the 'real work' is held in the HAND. SWF file. This approach would solve some other problems, and it makes sense in a mindset of "separating the display of data.

  If (and this is the interesting part) I changed the API for the LOADED. SWF to accept the pairs of strings (ie., LoadedSWF.AddToDisplay (String Name, String Data)) rather than accept MyCoolObj. Ran and Viola, now we work without any throw exceptions in. After this moment of glory, I created a couple of other APIs that comes from base classes (a type int, the other a type function) agreed and was happily on my way.

  On this basis, I understand while passing another base class objects (IE, the derived class) to load MovieClips via custom function API is... perhaps not so simple you'd expect. In the grand scheme of things well, not a big deal: as far as I'm concerned AS3 rocks.

  Kglad, thanks again for all the help: your comments on how this was the big push that I needed to get through the last barrier of this project.

  For those who read this topic for the ' how to call functions or set variables in a loaded SWF file?

  The short answer is cast to the SWF file that is loaded as a MovieClip content object and then call the function or change the variable:

  Load the SWF file (you saw this code a million times)
  var LoadedSWFObj:Loader = new Loader();
  var MyURL:URLRequest = new URLRequest("LoadThisSWF.SWF");
  LoadedSWFObj.load (MyURL);

  It is within your Event.COMPLETE Manager:

  Cast as a MovieClip object and work with it.
  var LoadedSWF:MovieClip = LoadedSWFObj.content as MovieClip;

  or another way to perform a cast:
  var LoadedSWF:MovieClip = MovieClip (LoadedSWFObj.content);

  Call yer function:
  LoadedSWF.CallMe ();

• Functional global variable home (RFGV) is cut off by the controls on the front panel

  Hello

  I though that I had found the ultimate way to dynamically manage memory in a system of Exchange. I read on RFGV here: http://labviewwiki.org/Functional_global_variable and put together a static FGV normal to follow the references for each created instance of memory which I then could easily remember just by name. But now I found that all the RFGV completely stops whenever a front panel with a menu control is used, i.e. 'enum', 'ring' or 'control path. I tried to put in different delivery systems, but not luck. I read about that guy who could have fallen into the same problem: http://forums.ni.com/t5/LabVIEW/Do-I-need-to-use-a-semaphore-when-reading-writing-a-functional/m-p/1... but he got no help what I could see.

  I have not tried semaphores. Don't know what that is. Check my little test code and tell me what I am doing wrong. Or maybe there is no solution in this case I have to abandon the idea of the use of RFGV for anything. Maybe memory held all the VI will be assigned statically.

  Run the code (in LV2009) and watch the 6 LEDS Flash. Then click on anyone of 'enum', 'ring' or 'path' (the file dialog box) and watch off LED when dynamic memory is used to write or read while the continoues to static VI.

  Any suggestions?

  Best regards

  Kai

  If the memories are good, what you're running against is not the user interface thread, but an internal mechanism of LV called the loop of the root, which must run in some things. Specifically, in your case, the method run a VI and showing a menu (a menu real, or a context menu of a ring).

  You can work around this problem (and greatly simplify your code) If you use the call node of the reference instead of the method to execute a VI, but I wouldn't recommend it anyway, since I assume that your code is not what you think it does. In LV memory management can be quite complex if you want to be able to control it, so if you feel you really need, I suggest to start by searching for existing materials on the management of memory in LV

• How to access functions or variables other clips?

  Been hooked on it for some time now, from what I've read, I'm well do things, do not know what Miss me.

  Here's what I'm looking for:

  Dropbox - test.fla

  Thanks for any help.

  You access this right. It's just that this.target.triggerTarget () is not running when you run the file. I think it's maybe because your symbol and function did not "load" again. If you move your call of the function of frame 2 instead, it will activate (while your symbol is the 1 frame)