Boolean flag indicating fileglobals

Similar Questions

• I want to add the Boolean flag

  I wan to add boolean indiactor help me please friends

  Create a Boolean flag.  Put it in a frame of single flat sequence with the node list property names and wire a constant True to the indicator.  Now, when this image of the structure of sequence is running, the Boolean value is set true simultaneously data happens in the property node.

  Of course you must have a way to reset the indicator Boolean false at the beginning of the program.  The wire so a False constant in a local variable of indicator and make sure that this piece of code is executed at first execution of your VI.

• mouse hover on Boolean flags to display image

  Hiya,

  I wonder if it's possible:

  Move the mouse over the Boolean flags on the front to display an image for what Boolean indicator represents. This image is a copied and pasted from microsoft word. If this requires the creation of some complex vi, I would be happy if some guidelines is provided.

  Thanks a lot for your help in advance.

  Thanks and greetings

  There is possibility to remove the grid of FP go to tools-> options-> grid alignment and uncheck the box "see the front grid.

  You can also specify the color information (so that LV always opens a new vi with the color specified each time) to the title of "colors".

  Note: This is for version 8.5 of LV... You may need to check for LV2009, but you can foind them under 'Options '.

• Create a Boolean flag custom

  Hello

  I developed an application that uses a state machine approach. When I run the application, I have a Boolean light that turns green when sound ONE and red while its JUDGMENT. I need to create a custom thick line(as indicator) that behaves like a Boolean of LED indicator. Any help would be greatly appreciated.

  You can set "Behaves like a Boolean indicator?

  You could always take a square LED and play with the dimensions and colours until it has the form of a line and has the same color as the background wide.

• How to change the Boolean flag rectangle into 2 triangles.

  The notation for a valve is two triangles whose ends are touching.  I want to show images of the valve as indicators Boolean - red = closed and green = open.  Is it possible to change the standard indicators normally rectangular or circular shape to match the double triangle.  I know you can get this result using the triangular shapes and blocking part of the rectangular Boolean value which does not resemble the double triangle shape.  I don't want that since I find it difficult to group the shapes.

  

  You have controls and indicators already available in the similar DSC Toolkit.

  Or a solution, you can try is to use custom controls, check your two images in software such as paint.

  Select the control that you want to customize (in you case a Boolean value) and with the right click make Type Def then Open Type def.

  Copy your image to that of the State in the Clipboard, and then select the picture to import from the Clipboard and the State associated with your image in the right click menu

  Do the same again for the other State.

  You can also find more information about the controls customized using LabView

  I hope that answers your question

• How to do a boolean flag to trigger structure of the event

  I have two parallel loops running, and I need to use a Boolean value, that comes out to a golden door, to trigger an event in the parallel loop of event structure.  I have attached a simplified version of the loop.  Is there a way to achieve this?  I tried to use local variables, value (signaling), etc., and they did not work

  
  

• How complete a undesirable static dimension made of N Boolean flags

  Hi, we want to fill a junk dimension (a table with Boolean fields N - 18, in our case).
  Records must contain all possible combinations of all the fields (with 18 fields of integer type whose value can be 0 or 1, the number of possible combinations is 262144).
  I'm looking for suggestions on how to do (with a single SQL statement or a cursor in a procedure, they are both very well).
  
  Thank you
  Andrea

  You can use the Cartesians/joins products to get the result. Here is an example:

  SQL> WITH boolean_flags AS
    2  (
    3          SELECT  0 AS FLG FROM DUAL UNION ALL
    4          SELECT  1 AS FLG FROM DUAL
    5  )
    6  SELECT  A.FLG
    7  ,       B.FLG
    8  ,       C.FLG
    9  FROM    BOOLEAN_FLAGS   A
   10  ,       BOOLEAN_FLAGS   B
   11  ,       BOOLEAN_FLAGS   C
   12  /
  
         FLG        FLG        FLG
  ---------- ---------- ----------
           0          0          0
           0          0          1
           0          1          0
           0          1          1
           1          0          0
           1          0          1
           1          1          0
           1          1          1
  

  If you need it to be more dynamic, you can generate SQL code dynamically as shown below. This example would work for the number of columns ranging from 1-26 (I have heavy test):

  SQL> VAR c REFCURSOR;
  SQL>
  SQL> DECLARE
    2          numDimensions   NUMBER  := 3;
    3          sqlText         VARCHAR2(4000) :='WITH boolean_flags AS
    4                                          (
    5                                                  SELECT  0 AS FLG FROM DUAL UNION ALL
    6                                                  SELECT  1 AS FLG FROM DUAL
    7                                          )
    8                                          SELECT A.FLG ';
    9          sqlFromText     VARCHAR2(4000) :='FROM BOOLEAN_FLAGS    A';
   10  BEGIN
   11          FOR i IN 2..numDimensions
   12          LOOP
   13                  sqlText := sqlText || ', ' || CHR(64+i) || '.FLG ';
   14
   15                  sqlFromText := sqlFromText || ', BOOLEAN_FLAGS ' || CHR(64+i);
   16          END LOOP;
   17
   18          OPEN :c FOR sqlText || sqlFromText;
   19  END;
   20  /
  
  PL/SQL procedure successfully completed.
  
  SQL> PRINT C
  
         FLG        FLG        FLG
  ---------- ---------- ----------
           0          0          0
           0          0          1
           0          1          0
           0          1          1
           1          0          0
           1          0          1
           1          1          0
           1          1          1
  
  8 rows selected.
  

  Published by: Centinul on December 28, 2009 09:35

• Native of filebrowse using and the cascading Save dialog box

  In my application I need to open file and file save dialog box when a specific button is clicked. I looked at the docs of stunts, but I found that the native options. Tried the native alert dialog, change of filebrowse dialog type. It displays well on Simulator, but could not get any output file that will be used in the Qt code.

  I pass these parameters

  int * num = NULL;

  char * folder [1024];
  dialog_update (alert_dialog);

  to dialog_event_get_filebrowse_filepaths(event,file,num), but it always returns BPS_FAILURE.

  In addition, access_shared is present in the bar-descriptor

  Here is my code:

  //slot function
  void App::fileOpen(){
      //===========================
          dialog_instance_t alert_dialog = 0;
  
          bps_initialize();
  
          dialog_request_events(0);    //0 indicates that all events are requested
  
          if (dialog_create_filebrowse(&alert_dialog) != BPS_SUCCESS) {
                      fprintf(stderr, "Failed to create alert dialog.");
                      return ;
              }
              const char* extensions[] = {"*.*","*.jpg","*.jpeg","*.mp3","*.wav","*.mp4","*.txt","*.doc","*.pdf"};
              int items = 9;
              if(dialog_set_filebrowse_filter(alert_dialog, extensions,items) != BPS_SUCCESS){
                  fprintf(stderr, "Failed to set alert dialog message text.");
                          dialog_destroy(alert_dialog);
                         alert_dialog = 0;
                         return ;
              }
             if( dialog_set_filebrowse_multiselect(alert_dialog,FALSE)!=BPS_SUCCESS){
                 fprintf(stderr, "Failed to set alert dialog message text.");
                              dialog_destroy(alert_dialog);
                             alert_dialog = 0;
                             return ;
             }
  
          if (dialog_show(alert_dialog) != BPS_SUCCESS) {
              fprintf(stderr, "Failed to show alert dialog.");
              dialog_destroy(alert_dialog);
              alert_dialog = 0;
              return ;
          }
  
          int shutdown =0;
          while (!shutdown) {
              bps_event_t *event = NULL;
              bps_get_event(&event, -1);    // -1 means that the function waits
                                            // for an event before returning
  
              if (event) {
                  if (bps_event_get_domain(event) == dialog_get_domain()) {
  
                      int selectedIndex =
                          dialog_event_get_selected_index(event);
                      const char* label =
                          dialog_event_get_selected_label(event);
                      const char* context =
                          dialog_event_get_selected_context(event);
  
                      char **fileArray[]={};
                      int *numFiles = NULL;
                     //
                            if(selectedIndex == 0){
         shutdown = 1;//user press the cancel button on dialog; close the dialog
     }
     else if(selectedIndex == 1){
         if(dialog_event_get_filebrowse_filepaths(event,file,num)!=BPS_SUCCESS){
         fprintf(stderr,"File open fail");
     }
     else{
  

  //debug purposes
         fprintf(stderr,"File array: %d/n",sizeof(file)*1024);
             fprintf(stderr,"Num files: %n",num);
             //fprintf(stderr,"Files int: %d",files);
     }
  
     }
                  }
              }
          }
  
          if (alert_dialog) {
              dialog_destroy(alert_dialog);
          }
          //===========================
  }
  

  Native Subforums have no useful information on this subject. Any help is greatly appreciated

  Hello again, here's the example as promised.

  To use the native filebrowse dialog box, the native code must run in its own thread to prevent the user interface in the Cascades to block. This is achieved by encapsulating all the dialog box code in a class derived from QThread.  The class I wrote is called FileBrowseDialog

  FileBrowseDialog.hpp

  #ifndef FILEBROWSEDIALOG_HPP_
  #define FILEBROWSEDIALOG_HPP_
  
  #include 
  #include 
  #include 
  
  /*
   * The file browse dialog displays a dialog to browse and select
   * files from shared folders on the system.
   */
  class FileBrowseDialog : public QThread
  {
      Q_OBJECT
  
      /*
       * QML property to allow multiple selection
       */
      Q_PROPERTY(bool multiselect READ getMultiSelect WRITE setMultiSelect)
  
      /*
       * QML property to read the selected filenames
       */
      Q_PROPERTY(QVariant filepaths READ getFilePaths)
  
      /*
       * QML property to set or get the file filters. This is an
       * list array variant.
       */
      Q_PROPERTY(QVariant filters READ getFilters WRITE setFilters)
  public:
      /*
       * Ctor and Dtor
       */
      FileBrowseDialog(QObject* parent = 0);
      virtual ~FileBrowseDialog();
  
      /*
       * Exposed to QML to start the run loop which creates and displays the dialog.
       * The dialog is shown until a button is clicked.
       */
      Q_INVOKABLE void show();
  
  public:
      /*
       * Getter for the selected filenames QML property
       */
      QVariant getFilePaths() const;
  
      /*
       * Setter and Getter for the filters QML property
       */
      QVariant getFilters() const;
      void setFilters(QVariant const& value);
  
      /*
       * Getter and Setter for the multiselect QML property
       */
      bool getMultiSelect() const;
      void setMultiSelect(bool value);
  
  signals:
      /*
       * Signal emitted when the OK button has been clicked on the browse dialog
       * The OK button is not enabled unless a file is selected
       */
      void selectionCompleted();
  
      /*
       * Signal emitted when the cancel button has been clicked on the browse dialog
       */
      void selectionCancelled();
  
  protected:
      /*
       * Implements the run loop. Dialog stays open until a button is clicked.
       */
      virtual void run();
  
  protected:
      dialog_instance_t m_dialog;
      bool m_multiSelect;
      QVariantList m_filePaths;
      QVariantList m_filters;
  };
  
  #endif /* FILEBROWSEDIALOG_HPP_ */
  

  FileBrowseDialog.cpp

  #include "FileBrowseDialog.hpp"
  #include 
  #include 
  
  FileBrowseDialog::FileBrowseDialog(QObject* parent)
      : QThread(parent)
      , m_multiSelect(false)
  {
      m_filters.push_back(QString("*.*"));
  }
  
  FileBrowseDialog::~FileBrowseDialog()
  {
  }
  
  void FileBrowseDialog::show()
  {
      if (!isRunning())
      {
          m_filePaths.clear();
          start();
      }
  }
  
  QVariant FileBrowseDialog::getFilePaths() const
  {
      return m_filePaths;
  }
  
  bool FileBrowseDialog::getMultiSelect() const
  {
      return m_multiSelect;
  }
  
  void FileBrowseDialog::setMultiSelect(bool value)
  {
      m_multiSelect = value;
  }
  
  QVariant FileBrowseDialog::getFilters() const
  {
      return m_filters;
  }
  
  void FileBrowseDialog::setFilters(QVariant const& value)
  {
      m_filters = value.toList();
      qDebug() << "filter count: " << m_filters.count();
  }
  
  void FileBrowseDialog::run()
  {
      bps_initialize();
  
      //request all dialog events
      dialog_request_events(0);
      if (dialog_create_filebrowse(&m_dialog) != BPS_SUCCESS)
      {
          qDebug() << "Failed to create file browse dialog.";
          emit selectionCancelled();
          return;
      }
  
      //set the selection filters
      if (m_filters.count() > 0)
      {
          char** ext = (char**)new char[m_filters.count()*sizeof(char*)];
          int i = 0;
          for (QVariantList::iterator it = m_filters.begin(); it != m_filters.end(); ++it, ++i)
          {
              QString filter = it->toString();
              if (!filter.trimmed().isEmpty())
              {
                  int length = (filter.length() + 1) * sizeof(char);
                  ext[i] = new char[length];
                  strncpy(ext[i], filter.toAscii(), length);
              }
          }
          if (dialog_set_filebrowse_filter(m_dialog, (const char**)ext, m_filters.count()) != BPS_SUCCESS)
          {
              qDebug() << "unable to set file browse dialog extensions";
          }
          for (i = 0; i < m_filters.count(); i++)
          {
              delete ext[i];
          }
          delete ext;
      }
  
      if (dialog_show(m_dialog) != BPS_SUCCESS)
      {
          qDebug() << "Failed to show file browse dialog.";
          dialog_destroy(m_dialog);
          m_dialog = 0;
          emit selectionCancelled();
          return;
      }
  
      bool shutdown = false;
      while (!shutdown)
      {
          bps_event_t* event = NULL;
          bps_get_event(&event, -1);    // -1 means that the function waits
          // for an event before returning
  
          if (event)
          {
              if (bps_event_get_domain(event) == dialog_get_domain())
              {
                  //0=ok, 1=cancel
                  int selectedIndex = dialog_event_get_selected_index(event);
  
                  if (selectedIndex == 1)
                  {
                      int count;
                      char** filepaths;
                      if (BPS_SUCCESS == dialog_event_get_filebrowse_filepaths(event, &filepaths, &count))
                      {
                          for (int i = 0; i < count; i++)
                          {
                              qDebug() << "selected file: " << filepaths[i];
                              m_filePaths.push_back(QString(filepaths[i]));
                          }
                          bps_free(filepaths);
                      }
                      emit selectionCompleted();
                  }
                  else
                  {
                      emit selectionCancelled();
                  }
  
                  qDebug() << "Got file browse dialog click";
                  shutdown = true;
              }
          }
      }
  
      if (m_dialog)
      {
          dialog_destroy(m_dialog);
      }
  }
  

  This class derives from QObject (by QThread) which means that it can be used by QML when it exposes properties and signals. The FileBrowseDialog class has 3 properties

  -multiple selection: a Boolean flag indicating if single or multiple selection is allowed

  -filepaths: a read only value that returns the list of files selected

  -Filters: a read/write value is where you can specify one or more filters to file (for example, ".doc", "*.jpg") etc.

  The next part is how you call the FileBrowseDialog through the QML. To do this, we must inform the QML of the FileBrowseDialog page. This is done in the App class via the qmlregistertype code.

  App.cpp

  #include 
  #include 
  #include 
  
  #include "app.hpp"
  #include "FileBrowseDialog.hpp"
  
  using namespace bb::cascades;
  
  App::App()
  {
      qmlRegisterType("Dialog.FileBrowse", 1, 0, "FileBrowseDialog");
      QmlDocument *qml = QmlDocument::create("main.qml");
      qml->setContextProperty("cs", this);
  
      AbstractPane *root = qml->createRootNode();
      Application::setScene(root);
  }
  

  The QML is now ready to be able to use the FileBrowseDialog. The example below is a page complete qml which has a button and a label. When we click on the FileBrowseDialog button is open, and all selected files will appear in the label.

  Main.QML

  import bb.cascades 1.0
  import Dialog.FileBrowse 1.0
  
  Page {
      content: Container {
          Label { id: filebrowseDialogLabel }
          Button {
              text : "File Browse Dialog"
              onClicked: {
                  filebrowseDialog.show();
              }
          }
          attachedObjects: [
              FileBrowseDialog {
                  id: filebrowseDialog
                  multiselect : true
                  filters : ["*.doc","*.jpg","*.txt"]
                  onSelectionCompleted: {
                      if(filebrowseDialog.filepaths.length>0)
                          filebrowseDialogLabel.text = filebrowseDialog.filepaths[0];
                      else
                          filebrowseDialogLabel.text = "no file selected";
                  }
                  onSelectionCancelled: {
                      filebrowseDialogLabel.text = "file browse dialog was cancelled";
                  }
              }
          ]
      }
  }
  

  And it's pretty much just invoke the native dialog file navigation in stunts. Please note save the file would follow a similar model, but I found that this dialog box was not particularly useful because it displays only a simple dialogbox with a text file name entry.

  See you soon

  Swann

• Boolean front panel disconnected from the block diagram

  It is very strange behavior I've ever seen elsewhere.

  I opened a program that I have used before that works, after the replacement of some dll which is called.  I don't know if it's relevant, but just in case.

  In any case, I have a structure of the event in a loop.  Events are to turn certain values of output in a bitmap and update some of the entries.  As you can see in the screenshot of the time-out loop, the values of the input bitmap are fed directly in the Boolean flags.  The problem is that even if the thread is true, the façade is not up-to-date.  Also, when I click on the button stop, the Boolean value on the wire is not up-to-date.  You can see on the screenshot of the probe and the front panel.

  At no time have I stopped explicitly updates from the front panel.  Indeed, the status indicator updates correctly.  But he only makes a Subvi.  If you pass a reference to a front panel indicator in a Subvi, it locks the front for some reason any?  I thought for sure, I had done this several times in the past without problem.

  I'll post not rather the VI publicly without more deletions.  Just the stuff company owner.  I wouldn't mind sending them to someone OR, however.

  

  

  Thanks for any help.

  It was apparently a transient state.  I arrived, open LabVIEW and the VI, and everything is fine now.  I don't know what that looks like, I am back and found a few nodes property overwrite values.  I promise you that I will not change anything.  I should have tried this yesterday, but it was the end of my day at that time and I had a place to be.

  If you want, bradyAE, you can send me your email address and I'll send you the VI, if you think it is useful to investigate it.  Like I said before, I would rather not post it publicly.

• Pass the Boolean b/t parallel threads

  Dear Board of Labview,

  I have two Labview processes running in parallel.   Entering the data and the other data output are done.   They where originally designed to operate independently of the other, but today I need them to make some modest integration.   The two processes are very complex, so I would avoid a costly reconstruction.   I am looking for a quick fix and dirty.

  I need #1 process (which is loop based) temporarily hold the execution based on a condition (Boolean flag) process #2.   I'm not familiar with the techniques of parallel processing in labview, and I wonder if I'm doing this more difficult it really is.   Can I put a wait loop in a process which refers to an indicator in another process?   What is the best way to pass Boolean data between parallel threads?

  Thank you

  Zach

  That vi is perfect.

  In your case by using a variable is probably correct. But do not use a global - use a local! I would stay again far using variables-you never know what the future holds. Maybe you end up adding a few other loop. Maybe you want to add error checking and loops to stop on error of the signal.

  There is a significant difference between Globals functional and just a simple variable. Since the FG is a vi that one instance can run at a time *. With a variable, you have no way of knowing which is written or read what or when, unless you use semaphores or structures from sequence.

  * unless you make it reentrant

• Can I change the properties of a flag color in a cluster?

  I have a cluster with three Boolean flags. I would like to have an initial state (color), they run in the beginning of my test. Is there a way to set the color property of a Boolean flag that is in a cluster? Thanks in advance for any help.

  Troy

  Hi Troy,

  I just created a simple app where I can change the color of one of my Boolean flags on the fly. You'll find it attached to this message.

  It's pretty simple to do:

  When you have created the two clusters in the façade, right click on the indicator you want to change the color of.

  Select the option 'create '.

  And select the option "property node.

  Now you can ad regardless of the indicator a boolean to the property you want.

  I hope this will help others with your program!

  Best regards

  Peter S

• Boolean Build table

  I am struggling to determine why the value of the only Boolean value below isn't concatinated to the arrary annexed table build?

  I understand that it isn't an arrary but a shift register value. But surely I can use this value T/F and added it to the array version some how.  Please advise I think I'm going crazy: manembarrassed:

  You always have a point of stress on Indicator0001.  As you now convert a U8 in an array of Boolean, but indicator 0001 shows only 4 elements.  It is safe for me to think that your meter is somehow an array of fixed size?

  I would avoid using a fixed table data type.  If you want to only 4 items in table 8 original item, then use Array subset to get only the items you want.  Then all your calculations later works and is displayed correctly.

• Definition of Boolean text with nodes proberty

  Hello world

  I am creating a VI that displays the status on the Boolean flags such as texts and screen color. I use the nodes property to do this, but it does not work as it should. When I run the VI, a couple of Boolean flags end by showing the incorrect text, even if the correct text has been connected to the property node. See attached screenshot and code.

  Thank you.

  I found that some of your labels have a space on each side of your text.  Because who does not, you will run the case "Default".

  Also, you should make a separate default case for you help in this kind of tracking error.

  

• For the Boolean result of a numerical limit test success/failure

  Hello

  Requirement

  My main sequence, I would like to call a subsequence of steps. If one of these tests in the subsequence fails, the main sequence must ignore all remaining events for this object to be measured.

  Plan

  I intend to have the subsequence return a Boolean flag in the main sequence, which would check this flag and jump to the group stage of cleaning if necessary. Most subsequence of testing is performed in a loop, so I thought of this approach:

  bool allPassed = true;
  foreach (itemsToTest) {
      allPassed = allPassed && currentTestResult;
  }
  
  return allPassed;
  

  Question

  It's easy to do with a pass/fail test, I couldn't find a way to get the Boolean result of a numerical limit test.

  Questions

  1. Is there a way to get this Boolean result?
  2. Is there a better way to meet my needs?

  Thank you!

  Using the Post Actions would be so much easier.  You can configure the sequence to do various things in failure, including a step you specify (that is, cleaning).

• Boolean text disappeared after the creation of the exe

  Hello!!!

  Deploy an exe of a National Instruments touch panel touch panel. The exe contains a value Boolean LED indicator which is supposed to is set to display the Boolean text (multiple string function is also checked). However this function does not work it means that boolean works properly but no text is visible. If anyone can help with this?

  Thanks in advance

  Good morning thorfano,

  I happened to notice that none of your Boolean texts are on the indicator, while mine are.  If you move your boolean text on the indicator or simply right click the indicator and choose "Text" lock at the Center, you should be able to review your text.

  A variant of this bug has been reported to R &D; I am trying to add this specific case to our documentation.  I apologize for any inconvenience this issue may cause you and hope that the solution to moving your boolean text is acceptable.