qmlRegisterType problem

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• <>and problems QImage qmlRegisterType

  I put in work of a custom control cascade but my command does not display I register my control in qml qmlRegisterType('com.lib', 1, 0, 'View'); Here are the important codes.

  in the qml file, I call my control as

          View{
              horizontalAlignment: HorizontalAlignment.Center
              verticalAlignment: VerticalAlignment.Center
          }
  

  Constructor for my control

  View::View(Container *parent)
      : CustomControl(parent)
      , m_Image( )
  {
  
      // Create the image view for the handle using the image for
      // the inactive handle
      m_ImageView = ImageView::create()
          .image(m_Image)
          .horizontal(HorizontalAlignment::Center)
          .vertical(VerticalAlignment::Center).preferredSize(400.0, 300.0);
  
      // Create a scrollView for our  view
      m_ScrollView = ScrollView::create(m_ImageView).scrollMode(ScrollMode::Both);
  
      //m_rootContainer->add(m_ImageView);
  
      // Set the root of the custom control.
      setRoot(m_ScrollView);
  
  }
  

  Update for my opinion

  void View::updateImage()
  {
      QImage image;
      tile.load( QString::fromLatin1("app/native/assets/images/t2.png") );
  
      //draw the image
      QImage qImage(400.0, 300.0, QImage::Format_RGB32);
      QPainter painter(&qImage);
      painter.drawImage(0, 0, tile);
      qImage.rgbSwapped();
  
      const bb::ImageData imageData = bb::ImageData::fromPixels(qImage.bits(), bb::PixelFormat::RGBX, 400.0, 300.0, qImage.bytesPerLine());
  
      m_Image = bb::cascades::Image(imageData);
  
      emit imageChanged(m_Image);
  }
  

  Problem solved. It was a problem of getters and setters. found a work around but will need to read the style getters and setters of Qt.

• problem with qmlRegisterType

  Hi I have a problem with qmlRegister for the use of an onFarenheitChanged signal for my weather app, when I build and run, has no problem except that when the application starts, the accident with a message like this

  Process 2016309487 (WeatherNow) terminated SIGSEGV code=2 fltno=11 ip=7844f196(/base/usr/lib/qt4/lib/libQtDeclarative.so.4.8.5@_ZN36QDeclarativePropertyValueInterceptorC1Ev+0x711) mapaddr=0014f196. ref=07a4f2f8 bdslot=1
  

  and this is the code

  CPP

  WeatherNowApp::WeatherNowApp()
  {
      QCoreApplication::setOrganizationName("conias media");
      QCoreApplication::setApplicationName("WeatherNow");
  
       qmlRegisterUncreatableType("bb.device", 1, 0, "BatteryChargingState", "");
       qmlRegisterType("My.Library", 1, 0, "QTimer");
       qmlRegisterType("Network.ExternalIP", 1, 0, "ExternalIP");
       qmlRegisterType("Weather.Now", 1, 0, "WeatherNowApp");
       //! [0]
  

  HPP

  #ifndef WEATHERNOWAPP_HPP_
  #define WEATHERNOWAPP_HPP_
  
  #include 
  #include 
  using namespace bb::cascades;
  
  namespace bb
  {
      namespace cascades
      {
          class Application;
      }
  }
  
  class WeatherNowApp : public QObject {
      Q_OBJECT
  
      Q_PROPERTY(bool useFarenheit READ useFarenheit WRITE setUseFarenheit NOTIFY useFarenheitChanged)
  
  public:
  
      WeatherNowApp();
      Q_INVOKABLE void showPhotoInCard(const QString fileName);
  
  Q_SIGNALS:
      void useFarenheitChanged();
  

  and the qml

  import Weather.Now 1.0
  
  attachedObjects: [
  WeatherNowApp {
              onUseFarenheitChanged: {
  
              }
          }
  ]
  

  the qml missing changes to the label and that, but it does not even withouth code in there, so this isn't a problem on the internal code, suggestions?

  SIGSEGV error basically tells you that your application's RAM that does not belong to her or trying to run a class via an invalid pointer method.

  Do I have reason to assume that the WeatherNowApp class is the UI of your main application class? If Yes, I am confused why you would be save with QML, then by attaching to a page in QML. It is not normal to save the UI class main QML in the constructor of this class even with qmlRegisterType().

  I think that maybe what you really do is pass the instance of the main application to QML as a context property. If you try to respond to a signal of your main UI in QML class, then you should do so with the connect() function. Something like this instead:

  WeatherNowApp::WeatherNowApp()
  {
      QCoreApplication::setOrganizationName("conias media");
      QCoreApplication::setApplicationName("WeatherNow");
  
      qmlRegisterUncreatableType("bb.device", 1, 0, "BatteryChargingState", "");
      qmlRegisterType("My.Library", 1, 0, "QTimer");
      qmlRegisterType("Network.ExternalIP", 1, 0, "ExternalIP");
  
      QmlDocument *qml = QmlDocument::create( "asset:///main.qml" ).parent( this );
  
      // ---Make this app object available in QML
      qml->setContextProperty( "app", this );
  }
  

  Page {
     id: myPage
     function onUseFarenheitChanged() {
        if (_WeatherNow.useFarenheit == true)
           weatherDataTemperature.text = Math.round((jsonweather.temp)*1.8+32);
        else {
           weatherDataTemperature.text = Math.round(jsonweather.temp);
        }
     }
     onCreationCompleted: {
        app.useFarenheitChanged.connect(myPage.onUseFarenheitChanged);
     }
  }
  

  BTW, it makes no difference to the code, but you poorly spelled fahrenheit.

• QTimer and qmlRegisterType

  I think it's time for me to consult the world forum on my problem. It seems so simple and yet I could not find the cause of the problem. I started having problems after you install the SDK version Gold

  I use QTimer on stunts.

  In my .cpp, I registered the object as:

  qmlRegisterType ('my.library', 1, 0, 'QTimer");

  In main.qml, I imported as:

  import my.library 1.0

  and fixed on a label as follows:

  attachedObjects:]
  {QTimer
  ID: timer
  property int f: 0
  interval: 1000
  onTimeout: {}
  f += 1;
  timerLabel.text = "duration:"+ f; ".  timerLabel is the id of the tag that is fixed QTimer
  }
  }
  ]

  Thanks for any help!

  After trying several scenarios and working on your suggestions, I've finally found what is causing the problem. In the original code, it could save the object and reached the import statement, but he has never run the attachedObjects part.

  What I did is I renamed my main.qml in another (timeTrial.qml) and created a new main.qml. Can I access timeTrial.qml through navigationPane. It worked without any code changes.

  Can someone give an overview of how's done it?

  It goes like this:

  CPC (save the object) file-> main.qml-> timeTrial.qml (import my.library 1.0)

  Thank you very much!

• Problem with the C++ object to qml exponent

  Hello, I followed the instructions by Qml and C++ integration but got stuck at a certain time.

  Here is my code:

  // applicationui.cppPage* ApplicationUI::doLoadPageDetails(){
  
      qmlRegisterType("myHtmlPage", 1, 0, "HtmlPage");
  
      QmlDocument *qml = QmlDocument::create("asset:///PageDetails/PageDetails.qml").parent(this);
      qml->setContextProperty("app", this);
  
      HtmlPage *htmlPage = new HtmlPage();
      qml->setContextProperty("htmlPage", htmlPage);
  
      htmlPage->setHtml("*some html code*");
  

  This function creates a Page with a container that contains a WebView. Here, I want to fill the string saved as htmlPage.html.

  I created the RPC classes as described in the link and they work. When I check the htmlPage-> html() in C++, I get the string I wanted.

  Now, my problem is how to get this string for qml.

  Here's what I do:

  import myHtmlPage 1.0....Container {
  ....
          ScrollView {            visible: true
              WebView {
                  attachedObjects: [
                     HtmlPage {
                          id: htmlPage
                      }
                  ]
  
                  id: webViewScrollable1....
                  html: "" +
                  "" +
                 "*style options*" +
                  "" +
  
                  htmlPage.html +  //<----- this should give me the string I saved in C++ under htmlPage->html()
  
                  "" +
                  ""
              }
          }
  

  But nothing is displayed on the page. But why? I forgot to link something?

  I think you're getting confused in the difference between a property and recording a QML component.

  You do both.

  When you attach an object to a QML file, you create an instantiation of the object at this time, when you set a context property that you you already created that object and are just passing a reference to this.

  So when you join HtmlPage in your QML file you create a new object and does not reference that you have created in your program C++ part, so no text.

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  How can I scan from HP Envy 4500 to computer after downloading macOS Sierra?

  Hello wdemetris,

  Thanks for asking for scanning helps here in the Apple Support communities. I understand how it is important to have access to your scanner and am happy to offer help for this.

  As a precaution, we always recommend that you have backups to make sure that all your data is safe. You can perform a backup using Time Machine and an external hard drive. Use this article to help make a backup of your Mac: use Time Machine to back up or restore your Mac.

  Then, in accordance with article help: printer and scanner for Sierra, El Capitan, Yosemite, and the Mavericks macOS software, the HP Envy 4500 e-all-in-one is supported for printing and scanning. The drivers must be installed, but if not, if it please go to the App Store and check the updates tab to see if there are updates for HP. If there is, please install.

  If you have only general questions about how to get your updated scanner in place or how to scan pictures, please check out these two articles: macOS Sierra: implement a scanner & macOS Sierra: scan images or documents. If everything is configured correctly and you still have problems scanning, please visit this help article: macOS Sierra: scanning troubleshooting.

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• My iPhone 6 installed 10.0.2 stops when it gets to 40% of autonomy.  In addition, it seems to pass power WAY to fast with the new software.  Does anyone else have this problem?

  My iPhone 6 installed 10.0.2 stops when it gets to 40% of autonomy.  In addition, it seems to pass power WAY to fast with the new software.  Does anyone else have this problem?

  Hello brooksm549,
  Thank you for using communities of Apple Support.

  I got your message which, since updating your iPhone 6 to iOS 10.0.2 your iPhone stops when it is 40% and the power to empty very quickly. I understand your concern with the iPhone turn off and drains the battery. I recommend you to review the use of the battery to see what app contributes more to the battery drain. The following article will provide you with steps on how to check the use of the battery:

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  Best regards.

• MacBook Pro display problem

  Hello members of the community.

  As of recently, I have noticed some glitches when feeding on my MacBook or awakened from his sleep.

  The colors are distorted, usually with pink, green, or yellow blobs. Blobs cannot entirely replace the colors, they appear to be contained in a element would normally be. For example. the menu bar will be partially pink and white, but pink does not leave the menu bar in this area, and the Office has green lines on it.

  I tried to take a screenshot, but the problem resolves in about 20 seconds, but it's a recurring problem.

  It happens when I wake up, connection or not. I had also certain powers serious and problems of performance, such that my MagSafe LED would not illuminate when plugged on rare occasions, fan could turn unnecessarily, graphics performance were SUPER slow, and the health of my battery was running out quickly. I actually ran a report on the system at 2 different times and my quality of full load is depleting of 1.2% per charge cycle, which is very worrying. I went from 6281 mAh mAh 6138 maximum capacity after two cycles of load. I'm tracking closely it because at this rate, my battery will survive only at load cycles about 150 instead of the 1000 expected, gives me the idea that this could very well be a bad battery. The computer is also warm to the touch while you sleep, not connected to the power supply. I NAP active but even taking into account should not be hotter my iPhone did the same thing.

  I have reset the SMC, and it solved a couple of problems. The charger works fine now and my performance improved considerably (which made me feel better, either it is a high-performance laptop, a 11-inch MacBook Air should not he surpass), and battery life has improved. I feel even if it uses a lot of power in his sleep. Maybe I need to turn off the NAP and see if that makes a difference. The graphic bug still persists however, and I don't have enough time to see if the max battery is depleting again.

  In regards to the bug, is there something that can be done? Basically, I want to assure you that I took all appropriate measures or if someone else has this problem to see if it can be software related instead of my computer.

  I have the entry level MacBook Pro with the retina, last generation.

  Any constructive contribution welcome!

  See you soon.

  -adreaux

  Hello bernardn753,

  After reviewing your post, it seems that you are having problems with the screen showing strange things on it. Looks like you already have a troubleshooting. I recommend you read this article, as reset NVRAM would be to reset your screen resolution settings that should help.

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  Thank you for using communities of Apple Support. Good day.

• with IOS 10.0.2 - 5s iphone Bluetooth problems

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  After my Ipad iOS 10.0.2 update I could not activate because it says I am not access with the original Apple journal. Makes no sense. I bought the new Ipad in seven of 2013 Dabs.com. She has been linked to my Apple account 10 days ago (I deleted my profile by own Apple support Web site suggestion as a way to fix my problem, the other restoration/upgrade to the Ipad with ITunes update). I contacted the support of Apple (I have two numbers in case Apple). Asked Apple support to provide a proof of purchase I made. Told me now the reception that I provided does not correspond to my Ipad, but Apple isn't going to help with all the details to help to regularize the situation. The Ipad is mine and well was linked to my account from the date of purchase in September of 2013 until I removed it at the suggestion of site specific help from Apple. I now do not have access to my ipad £460 for more than 10 days and have lost money and time talking to 4 different cooperatives of Apple, after 6 calls and none seem able to deal with a ridiculous situation. Alexandre Vitorino (Apple) seems to have the best handle on weird how this situation is. Please can someone fix this? A software update on an Ipad that I own shouldn't stop me using it and then force me to prove that I admit actually before I use it again! I'm a professional businessman who uses it for meetings of the Council. I have a receipt for my camera and get treated like a kind of criminal.

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  If you are in the same situation please confirm to this post. I can't be alone, if she feels like it!

  Post edited by: cibble10

  Lock activation occurs when the ID of original Apple blocking it does not match with your current Apple ID.

  Until you can bring a receipt valid from an Apple reseller or authorized, it's nothing you can do.

  BTW, the polling stations in this Apple-owned forums is prohibited. You can review the terms of use.

• Anyone know how to solve my problem? I can't import my photos from Iphone to computer. Sign says: Photos in the camera cannot be imported because the IPhone is locked with a password or read. My phone is unlocked. I've tried everything

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  For example, you specify that the device does not display the lock screen, correct? Do you use Touch IDS? If so, try to put your finger on the device to see if it's what he wants.

  See you soon,.

  GB

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  IM someone buy iphone 6plus they don't sign Apple ID and icloud, I reset my phone and now I'm still icloud activation problem.how can I do?

  You can not. The only way is if the previous owner release form their iCloud account. If they will not do for you, it means nothing to you.