Detect if the time information dialog box controls user has been activated

Hello

I have to make a few changes to my project. I can't edit existing program blocks, so I have to find a way to detect if the user has pressed icon for user dialog box to set up (control type is Time Stamp). I have now, I can compare the current values with the values from the previous loop pass, but this isn't an option.

I'm looking for some kind of property as active control node or something similar.

It does not exist.  You can create your own time stamp control (like an XControl), or you can simply watch to see if the window is displayed. You can do the last using VI server functions or you can use the API of the operating system. For Windows, you can use the LabVIEW Windows utilities library.

Tags: NI Software

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    #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.
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    class FileBrowseDialog : public QThread
    {
        Q_OBJECT
    
        /*
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         */
        Q_PROPERTY(bool multiselect READ getMultiSelect WRITE setMultiSelect)
    
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         * QML property to read the selected filenames
         */
        Q_PROPERTY(QVariant filepaths READ getFilePaths)
    
        /*
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         */
        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.
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        Q_INVOKABLE void show();
    
    public:
        /*
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        QVariant getFilePaths() const;
    
        /*
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        QVariant getFilters() const;
        void setFilters(QVariant const& value);
    
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         */
        bool getMultiSelect() const;
        void setMultiSelect(bool value);
    
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    protected:
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    protected:
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        QVariantList m_filters;
    };
    
    #endif /* FILEBROWSEDIALOG_HPP_ */
    

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    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

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    -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.

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    #include 
    #include 
    #include 
    
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    using namespace bb::cascades;
    
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        AbstractPane *root = qml->createRootNode();
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    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.

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            ]
        }
    }
    

    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

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