LabView VB6 Dll interface causes memory leak

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• Windows Media Player ActiveX control causes memory leak

  I'm writing an application that will load and play *.avi files in an ActiveX control. The user must be able to load multiple files consecutively in the single player mode. However, it seems to be the memory leak every time that a file is loaded, even if it's the same file. For example, even when you load a small file in *.avi 81KO repeatedly, there is a memory leak ~ 6Mo coherent (as observed in the Manager of tasks). The leak memory is greater when I load larger files.

  I tried to deny it by adding using a Method Close by using the node invoke. It gets about 3 MB of RAM, but when I load the file again, it leaks ~ 9MB, leaving a net leak of ~ 6Mo once again.

  I also used reference close vi (s) to clear the memory ActiveX object, but that did not help either. In other versions of VI, I tried to eliminate the creation of a new IWMPlayer4 object using a shift register, but once again the leak memory persevered...

  It's a simple version of the VI, as well as the small video file attached. In my application, I want to be able to load large video files (~ 600 MB) several times without memory leaks. Thank you in advance for your help!

  -gpho

  Hi jareds.

  Thanks again for test it for me. I use Windows 7 and WMP version 12.

  As you requested, I tested it on a computer with Windows XP and WMP version 9 (and LabVIEW 8.2.1) and the problem of memory has disappeared. I then installed WMP version 11 on the same computer: still no memory problem.

  On the Windows 7 computer, I went back to version 11 using the instructions found on this link, and the problem of memory has disappeared. It seems that memory leak is due to a problem with WMP version 12 (although degraded version 11 on windows 7 has some bugs - and you can't go back to v12).

  Thanks again for the help!

  -gpho

• GetCurrent() ADFContext causes memory leak

  Hello

  I use jdev 12.1.3.

  I created a project that uses the Services Rest and when I run it in the integrated weblogic I get this

  <oracle.adf.common> <ADFContext> <getCurrent> <Automatically initializing a DefaultContext for getCurrent.
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  Memory leaks and/or unexpected behaviour may occur if the automatic initialization is performed improperly.
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  I also have another weblogic, external, to make my application deployments final in which I am also having the same message. The problem is that external stops my services because of this memory leak.

  I looked in my code, and the only reference I had of getCurrent is now deleted.

  I already own classes, make, and rebuild the two projects and I still get the same message.

  In this way, I think that the problem should lie in the services project, but I have no idea where specifically.

  Any help or advice on this subject?

  I looked at if there was a reference to the same problem and I found that unanswered explains my question.

  https://community.Oracle.com/thread/2533050

  Any help is appreciated

  The message tell you that it might be a memory leak, not part.

  In any case, you will need to dig deeper in this issue e.g. seting the log level to the most beautiful (as the message tell you to do). This way you find hence the getCurrent() is called.

  The framework calls this method too on several occasions. If the battery of the adf is not setup properly, you can get these messages. But without a full analysis, you can't fix it.

  If you have a support contract you can ask support.oracle.com for help on this too.

  Timo

• SetCtrlVal used during the Thread function works causes memory leaks

  I am writing a program that works if... Or not work if... - see the next lines... :-)...

  The program includes a section, mostly GUI - and User Interaction.

  The other part is a DLL. In the DLL we readings on an external consultant controller RS232. Sometimes the controller card needs (called how much) time and this time must pass then the result can be read card controller... and so on...

  Blocking is not GUI-user-program for the expectation of the return value of the DLL functions (which need a few seconds to be finished) I start a thread in the DLL with

  CmtScheduleThreadPoolFunction (DEFAULT_THREAD_POOL_HANDLE, THREAD_FunctionX, & tmpTFP, NULL);

  with "tmpTFP" as an instance of type "TYPE_THREAD_FUNCTION_PARAMETERS":

  typedef struct
  {
  //
  int IntVal1;                // 1. Integer-Wert
  int IntVal2;                // 2. Integer-Wert
  int IntVal3;                // 3. Integer-Wert
  int IntVal4;                // 4. Integer-Wert
  int IntVal5;                // 5. Integer-Wert
  //
  int IntBuffer1 [32];            // 1. Integer-buffer (aktuell genugt einer)
  //
  Double DblVal1;                // 1. Double-value
  Double DblVal2;                // 2. Double-value
  Double DblVal3;                // 3. Double-value
  Double DblVal4;                // 4. Double-value
  Double DblVal5;                // 5. Double-value
  //
  char CharVal1;                // 1. (Single)- Tank-Wert
  char CharVal2;                // 2. (Single)- Tank-Wert
  char CharVal3;                // 3. (Single)- Tank-Wert
  char CharVal4;                // 4. (Single)- Tank-Wert
  char CharVal5;                // 5. (Single)- Tank-Wert
  //
  char CharBuffer1 [1024];        // 1. Char buffer (akutell einer genugt)
  //
  } TYPE_THREAD_FUNCTION_PARAMETERS;

  In the GUI-user program - I get fast by default-return value of the thread start function.

  Then I asked the DLL (some global state variables are used for this) when it is finished.

  According to the map-controller (RS232) contacted the waiting time depends on the 'mood' of the controller card.

  In the DLL-mark of the GUI-user-program routine now everything works fine - without using "SetCtrlVal!"

  In my GUI, there is a text box of the info/comment for messages. If I do a few outputs user using 'SetCtrlVal' I always errors, caused by the false "TYPE_THREAD_FUNCTION_PARAMETERS"-values in the service of thread. "» If I set a breakpoint at the beginning thread-function I see mostly erroneous values in my transfer structure variables. If I put a breakpoint in the thread-function-calling 'CmtScheduleThreadPoolFunction (...)"and at the beginning of the thread values are (mostly) correct!

  I tried several and different things - but:

  If I ONLY (!)  Commenting on the (!) of a line with "SetCtrlVal", the program works, all States are asked out of the DLL.

  If I replace the "SetCtrlVal" with a written record-file function clean everything works fine and after completing the program I can look at the log file and see all the user information. BUT with 'SetCtrlVal' instead or set or (...) it does not work.

  My description is maybe not entirely clear, but believe me: only ONE line the «SetCtrlVal "line - should be commented out to let the program run properly!»

  Because if the line "SetCtrlVal"is program-user-GUI, after the call to the thread in the DLL, the DLL-memory seems to be corrupted by the call "SetCtrlVal" in the user-GUI program.»

  Best regards

  F.

  There may be a problem in your structure that your variable is set.

  You said that, after the address of the variable in the thread function the appellant one ends. Now, as you can read help each value passed in parameter threadFunctionData of the layed function must point to an area of memory that persist when the fuction is running: If your variable is defined at the level of the functions it is not valid when the thread runs since the appellant finished and released its local memory.

  Your approach with a global variable is a valid alternative, but if it is the solution, you will find data passed to the thread function must be valid for all his life.

• call of LabView VB6 DLLs

  Hello

  I have a dll written in VB6 to control some 3rd party hardware

  I already tried to use the node of the library function call but it doesn't seem to work, after that also, I tried to use

  RefNum Automation, entry and select ActiveX class and and locate my DLL but when I select the dll, the following message shows on the screen: the selected file is not a .NET, type library or executable automation assembly.

  Keep on the issue, I tried to save the Visual Basic DLL on the system through the REGSVR32 command but I got another different message (fbidio.dll was loaded, but the DIRegisterServer entry point was not found. This file can not be registered). Looks like the dll that I intend to use is very old.

  Can someone guide me on this issue, what other things I can try.

  Thank you.

  Concerning

  Hello

  The LabView collapse when I try to use the node library call, in my understanding, based on some comments I've seen, it is not possible to use the call library node for the VB dll.

  Anyway I already understood how to control my gear, I found a module update for Active X controls in the web for my hardware and now my application works perfectly with an ActiveX container, then insert the ActiveX object.

  Tounsiiaa so.

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• Manager replace causing memory leaks?

  Hey people!

  Recently, I discovered that the use

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  I don't think that memory is there, trailing

  It's just number.

  I have debug your application and using the static memory to check.

  allocated and it freeed correctly.

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• Loading external Images causes memory leak

  I worked on an Actionscript 2.0 project that essentially loads external images.
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  If all the images are in the cache, then it grew 4 or 8 KBs
  In the unloading of the images, I took the charger and the container of the image.
  Any thoughts why it behaves like this?
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  ////////////
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  var container1:MovieClip;
  var mcLoader:MovieClipLoader;
  var loader_reference =;
  var n = 0;
  function loadImage() {}
  var image_arr = ["http://xyz.com/image1.png ',' http://xyz.com/image2.png ',' http://xyz.com/image3.png ',' http: /xyz.com/image4.png http://xyz.com/image5.png ',''"];
  image_url var = image_arr [n];
  {if(n==image_arr.) (Length-1)}
  n = 0;
  } else {}
  n ++ ;
  }
  
  container1 = loader_reference.createEmptyMovieClip ("Container1", loader_reference.getNextHighestDepth ());
  mcLoader = new MovieClipLoader();
  mcLoader.removeListener (mcListener);
  mcLoader.addListener (mcListener);
  mcListener.onLoadComplete = {function(target_mc:MovieClip,_httpStatus:Number):Void}
  }
  mcListener.onLoadInit = {function(target_mc:MovieClip):Void}
  target_mc._x = 300;
  target_mc._y = 200;
  target_mc._width = 300;
  target_mc._height = 250;
  }
  mcLoader.loadClip (image_url container1);
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  ////////////

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  This code should run only once.  fix this.

• Memory leak with RS-485 visa

  I tried to find a slow memory leak in a large application Labview (2012f3). Using perfmon, probes and breakpoints, I could trace the source of the leak of a series VI communication employing a number of nodes VISA. I have attached a slightly simplified version of the VI leaking (serialCommand.vi), as well as a VISA vi initialization and a VI of container to test.

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  System information:

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  CAR #403386 was created to follow up on this matter.

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• On firefox memory leaks cause blue screens?

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• This will cause a memory leak?

  Hello

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  I think that they stayed in the memory, but we can't reach them because they do not have a reference variable.

  in java, we know that the String class is immutable.

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  3 - Add a new string 'bar' in 1 side firstArray address in memory

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• There seems to be a MAJOR problem (blocking/memory leak) in "subject: House", also known as the Firefox Start Page, at 26.0 Firefox on Windows!

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