Nfc_ndef_record_t convert QByteArray HowTo

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• Convert QByteArray QImage

  Hi all

  Is it possible to convert QByteArray QImage?

  Answer please!

  See you soon!

  use the registration method.

  example of http://qt-project.org/doc/qt-4.8/qimage.html#save-2

  QImage image;
  QByteArray ba;
  QBuffer buffer(&ba);
  buffer.open(QIODevice::WriteOnly);
  image.save(&buffer, "PNG"); // writes image into ba in PNG format
  

• How to convert QByteArray QImage?

  Hello

  Anyone know how to convert QByteArray QImage?

  You can use this:

  QImage img = getAnImage();
  QByteArray arr;
  QBuffer buf(&arr);
  buf.open(QIODevice::WriteOnly);
  img.save(&buf, "PNG");
  buf.close();
  

• Loading XML data in ListView of C++ after extraction of http data

  I'm sorry did searh but could not find any refrence related to my problem
  I am trying to load the xml data returned from a web service HTTP Post QNetworkRequest and QNetworkReply in c ++.

  My XML that gets donwloaded is as

  
   http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://tempuri.org/">
    
      tu7652
      F
      Marry
      Wijaya
    
    
      23
      F
      Marry
      Wijaya
    
  
  

  In My QML, it comes to the ListView can say SearchResult.qml

  ListView {
            objectName: "resultlist"
            dataModel: feedsdatamodel
            listItemComponents: [
              ListItemComponent {
                          type: "item"
                          PeopleListItem {
                              name: ListItemData.givenName + ", " + ListItemData.sn
                              role: ListItemData.ExtFunction
                              leftPaddingText: 40
                          }
                      }
             ]
          }
   attachedObjects: [
         // The data model that contains the content of a XML file
          GroupDataModel {
              id: feedsDataModel
              sortingKeys: [
                  "givenName"
              ]
              grouping: ItemGrouping.None
          }
      ]
  

  PeopleListItem.qml

  import bb.cascades 1.0
  
  Container {
      property alias name: titleLabel.text
      property alias role: functionLabel.text
      property alias leftPaddingText: textcontainer.leftPadding
  
      layout: StackLayout {
          orientation: LayoutOrientation.TopToBottom
      }
      preferredWidth: 768
      preferredHeight: 135
      Container {
  
          id: textcontainer
          topPadding: 10
  
          layout: StackLayout {
              orientation: LayoutOrientation.TopToBottom
          }
          Label {
  
              id: titleLabel
              textStyle.base: SystemDefaults.TextStyles.TitleText
              textStyle.color: Color.Black
          }
          Label {
              id: functionLabel
              textStyle.base: SystemDefaults.TextStyles.BodyText
              textStyle.color: Color.Gray
          }
      }
      Divider {
          verticalAlignment: VerticalAlignment.Bottom
      }
  }
  

  This is the function I'm using to display the QML it is called from main.qml and works correctly.

  void PeopleFinder::onSearchClicked() {
      qDebug() << "PeopleFinder::PeopleFinder::onSearchClicked::\t" << "begin";
      qDebug() << "PeopleFinder::PeopleFinder::onSearchClicked::\tfname:"
              << m_fname << "\tlname:" << m_lname;
  
      // Create a network access manager and connect a custom slot to its
      // finished signal
      mNetworkAccessManager = new QNetworkAccessManager(this);
  
      // create a data model with sorting keys for lastname and firstname
      Q_ASSERT(
              connect(mNetworkAccessManager, SIGNAL(finished(QNetworkReply*)), this, SLOT(requestFinished(QNetworkReply*))));
  
      //Load the bew QML file of Search from here
      QmlDocument *qml = QmlDocument::create("asset:///SearchResults.qml").parent(
              this);
      qml->setContextProperty("peoplefinder", this);
  
      Page *mypage = qml->createRootObject();
      qml->setParent(mypage);
      qDebug() << "PeopleFinder::PeopleFinder::onSearchClicked::\t s444444";
  
      // Retrieve the activity indicator from QML so that we can start
      // and stop it from C++
  //  mActivityIndicator = mypage->findChild("myIndicator");
  
      // Retrieve the list so we can set the data model on it once
      // we retrieve it
      mListView = mypage->findChild("resultlist");
  
      mNavigator->push(mypage);
  }
  

  Once the page loads in the QML it call the launch request providing c ++ file and once the
  query is completed under function is called with the data. I checked that data are downloaded properly

  void PeopleFinder::requestFinished(QNetworkReply* reply) {
      qDebug() << "PeopleFinder::PeopleFinder::requestFinished::\t"
              << "response received";
      // Check the network reply for errors
      if (reply->error() == QNetworkReply::NoError) {
  
          // Open the file and print an error if the file cannot be opened
          qDebug() << "PeopleFinder::PeopleFinder::requestFinished::\t"
                  << "No error";
  
          // Write to the file using the reply data and close the file
          QByteArray xml = reply->readAll();
          qDebug() << "Data: \n" << xml;
  
          // load the xml data
          XmlDataAccess xda;
          QVariant list = xda.load(xml, "ArrayOfPeople");
  
          qDebug() << "List:::\n" << list;
  
          GroupDataModel *datamodel = (GroupDataModel*)mListView->dataModel();
          // add the data to the model
          datamodel->clear();
          datamodel->insertList(list.value());
          datamodel->setSortingKeys(QStringList() << "givenName" << "sn");
          qDebug() << "PeopleFinder::PeopleFinder::requestFinished::\t"
                  << "Datamodel set size:: " << datamodel->size();
  
          // Set the new data model on the list and stop the activity indicator
  
      } else {
          qDebug() << "\n Problem with the network";
          qDebug() << "\n" << reply->errorString();
      }
  }
  

  But now, the real problem begins as in how to convert QByteArray data type of QVariantList which can be loaded into the datamodel
  I don't want to write the data to the XML file and then pass that as a list his will is very slow, once I move test environment to the production environment.

  Please help me solve this problem

  I got it to work using xml parsing with QXmlStreamReader

• How to convert the Qbytearray into image in cascades

  Hi guys,.

  How can I convert a Qbytearray in image, so that I can show to imageView.Any the code examples will be useful

  Concerning

  Rakesh Shankar.P

  Thanks for your help, I was able to retrieve image

   QImage swapped;
       qDebug()<<"data"<setImage(image);     container->add(testImage);
  

  Concerning

  Rakesh Shankar.P

• bt_gatt_write_value_noresp HowTo convert ascii uint8_t string *.

  my C knowledge is very poor and so I have a question.

  use case:

  Crystal APP

  connected to a custom equipment

  Find services and connect to services: OK

  Characteristics of the found Services

  Record the reading for the notification Service: OK - all notifications are coming through

  now, I also have to WRITE a feature using

  int bt_gatt_write_value_noresp(int instance, uint16_t handle, uint16_t offset, const uint8_t *data, int size)
  

  This is the command that I want to write to the device as a String:

  "$HTMEA, 1, 7 * 7F\r\n".

  How to convert this string ascii uint8_t *?

  and what is the length (size)?

  using the. toAscii() I take a ByteArray and there is a. constData() which gives me a char *- but it does not help.

  looked at BT THE Primer, examples of applications and blogs, but did not find an example where a QString will be converted and sent to the device.

  the other way back to recall notice where the uint8_t * was transformed into a QString, I found in the sample application and this heart rate monitor market.

  thx for help

  overdraft.

  First, I had to get the hexadecimal value of my request chain.

  QString theRequest = "$HTMEA,1,,7*7F\r\n";const int characteristicLen = theRequest.size();uint8_t *characteristicBuffer = (uint8_t *) alloca(characteristicLen + 1);QString theRequestAsHex = theRequest.toAscii().toHex();
  

  so I found some utilities BT THE sample applications to help me turn this into uint8_t *.

  Utilities::hexToIntArray(theRequestAsHex, characteristicBuffer);
  

  The following methods of the utility:

  const QString Utilities::HEX_CHARS = QString("0123456789ABCDEF");
  uint8_t Utilities::hexToInt(QChar c1, QChar c2) {
      c1 = c1.toUpper();
      c2 = c2.toUpper();
      uint8_t result = 0;
      result = HEX_CHARS.indexOf(c1) * 16;
      result = result + HEX_CHARS.indexOf(c2);
      return result;
  }
  void Utilities::hexToIntArray(QString hex_string, uint8_t* output) {
      const size_t numdigits = hex_string.length() / 2;
      for (size_t i = 0; i != numdigits; ++i) {
          output[i] = hexToInt(hex_string.at(2 * i), hex_string.at(2 * i + 1));
      }
  }
  

  Thanks to the old guys BlackBerry John Murray and Martin Woolley, for all their great stuff on BT, BTLE and NFC.

• HowTo? convert virtual machines Hyper-V in ESX 4.0

  Hi, maybe posted a million times BUT:

  I have yet to convert a virtual Hyper-V for ESX 4 computer.

  Guests (W2K3, W2K8, W2K8R2)

  I tried

  -WinImage

  -Starwind

  -MS VMM

  -Vmware converter coldclone

  -Vmware converter online

  and again: If a VMDK of OS in ESX VM file does not start a VDISK or even knows that there is a file system.

  -What did I do wrong?

  Thank you very much...

  Stefan

  V2V 2008 R2 de HyperV for VMware is pretty easy - you should not even VMware Converter...

  read my notes here

  http://sanbarrow.com/p2v2008r2.html

  ___________________________________

  VMX-settings- Workstation FAQ -[MOA-liveCD | http://sanbarrow.com/moa241.html]- VM-infirmary

• HOWTO convert a 2 GB piece ito a growable disk single?

  Dear community,

  How can I convert a capable drive to grow into pieces of 2 GB breed only a drive capable?

  I already tried the following:

  VMware-vdiskmanager - r ' vm/olddisk.vmdk' t 0 vm/newdisk.vmdk

  But when I try this command, I get the following error:

  Disc creation ' vm/newdisk.vmdk.

  Cannot convert the disc: the parent of this virtual disk could not be opened (0x1700003e8c).

  How I can solve this, I use Windows 7 x 64 with vmware workstation 7.01.

  Thank you in advance.

  Richard

  try something like this

  vmware-vdiskmanager -r "c:\vm\olddisk.vmdk" -t 0 "c:\vm\newdisk.vmdk"
  

  ___________________________________

  VMX-settings- Workstation FAQ -[MOA-liveCD | http://sanbarrow.com/moa241.html]- VM-infirmary

• CANNOT convert webpage to PDF

  Something caused my Acrobat converter stop processing the conversion of web pages in IE8, which should convert to PDF format. It starts a second, and then a pop up comes up saying "couldn't access acrobats Web access facility.  Acrobat may be busy or waiting for the entry' I add we activated.  What else is my problem?

  Try this:

  Restore point:

  http://www.howtogeek.com/HOWTO/Windows-Vista/using-Windows-Vista-system-restore/

  Do Safe Mode system restore, if it is impossible to do in Normal Mode.

  Try typing F8 at startup and in the list of Boot selections, select Mode safe using ARROW top to go there > and then press ENTER.

  Try a restore of the system once, to choose a Restore Point prior to your problem...

  Click Start > programs > Accessories > system tools > system restore > choose another time > next > etc.

  http://www.windowsvistauserguide.com/system_restore.htm

  Read the above for a very good graph shows how backward more than 5 days in the System Restore Points by checking the correct box.

  See you soon.

  Mick Murphy - Microsoft partner

• How to record the QByteArray Image?

  Hello

  How to save picture JPG of QByteArray to BB10 device?

  Thanks a lot before

  QByteArray table;<--- this="" has="" the="" image="" data="" in="" byte="">

  QImage image = QImage::fromData (table, "BMP"); original was bmp for me, I convert it to jpeg format below

  QFile outFile("shared/photos/temp1.jpeg");

  outFile.open (QIODevice::WriteOnly);
  image. Save (& outFile, "JPEG");

  Let me know if it works, I just finished finished written an application that allows a user to sketch and doodle photos with their fingers and it had save function to debug it.

• How to convert the &lt; Contact &gt; QLIST Qstring

  Hello

  I would like to send my contacts from the device to the server using the Soap web service. but the method which who sent the item on the server takes the QString parameter and the contacts which I am retriving are type QLIST then please suggest me a method that converts the QList QString.

  Help, please...

  QString has a constructor that accepts a QByteArray.

• QByteArray fromHex error.

  Hi all

  I'm usin the QByteArray fromHex function, it works for small chains, but fails to larger.

  any body facing a similar question?

  Kind regards.

  I see only a 20 M byte array, converted into a hexagon of 40 M work of encoding...

  #include 
  #include 
  #include 
  
  int main(int argc, char *argv[]) {
      QByteArray test;
      for (int i = 0; i < 20000000; ++i) {
          test.append(rand());
      }
      QByteArray asHex(test.toHex());
      QString useEvenMoreMemory(asHex);
      QByteArray back(QByteArray::fromHex(useEvenMoreMemory.toLocal8Bit()));
  
      if (test.length() != back.length()) {
          qDebug() << "Size problems...";
      } else {
          bool good = true;
          qDebug() << "Length match";
          for (int i = 0; good && i < test.length(); ++i) {
              if (test[i] != back[i]) {
                  good = false;
              }
          }
  
          qDebug() << "Good" << good;
      }
  
      return 0;
  }
  

• QByteArray in Json

  How to convert a QByteArray from a JSON response network?

  Check with the function below:

  void GridSample::requestFinished( QNetworkReply * reply){
      QVariantMap dataName;
              if (reply) {
                  if (reply->error() == QNetworkReply::NoError) {
                      const int available = reply->bytesAvailable();
                      if (available > 0) {
                          const QByteArray buffer(reply->readAll());
  
                          bb::data::JsonDataAccess ja;
                          const QVariant jsonva = ja.loadFromBuffer(buffer);
                          const QVariantMap jsonreply = jsonva.toMap();
                          QVariantList data = jsonreply["photos"].toList();
                          foreach(QVariant v, data){
                              dataName["text"]=v.toMap().value("created_at").toString();
                              myGroupModel->insert(dataName);
                          }
                      }
                  } else {
  
                  }
                  reply->deleteLater();
              }
  }
  

• How to scan a hard copy in pdf format I can convert in word to change?

  I have a HP deskjet 3050 a and my operating system is Windows 7, how to scan a hard copy in pdf format I can convert in word to change?

  Hello
  The software provided for your device does not include OCR functionality

  You can use a solution of OCR 3rd party to analyze as editable text.

  If you have Microsoft Office suite, there is a good chance of the suite to provide this type of functionality:

  Office 2007 or 2010:
  http://www.howtogeek.com/HOWTO/14595/OCR-anything-with-OneNote-2007-and-2010/

  Office 2003:
  http://agsci.PSU.edu/it/how-to/perform-OCR-with-Microsoft-Office-2003-document-imaging

  Kind regards
  Shlomi

• What is the fastest way to convert VMWare workstation VM of ESXi?

  Hello

  Was curious to know what is the quickest way to convert a VMWare workstation VM to a VM compatible ESXi. Is the method of standalone converter VMWare at the following ADDRESS of the faster method:

  http://www.networkinghowtos.com/HOWTO/convert-virtual-machine-VMware-Workstation-ESXi-vSphere/

  Or is the method below faster? The method below mentions converter standalone is required for Workstation 8 VM but did not mention if it is needed for Workstation 8 AND HIGHER VM (ie: 9 and 10 workstation).

  http://KB.VMware.com/selfservice/microsites/search.do?language=en_US & cmd = displayKC & externalId = 1012258

  My ultimate goal is to export on a USB key and then import on the ESXi instead of convert and copy it to the network server. I'm exporting to my 3 TB USB would be faster than the copy of the virtual machine on the network. Thoughts?

  I think the second is the best option VMware KB: export of VMS in VMware Workstation to ESX/ESXi

  As you can see you can export the VM and after import on the EXS (do not use personalization)

  But uf you have Vmware Workstation 8 or higher, you can connect to the ESX Server and move the machine. If you are in the same local network and do it at a time of low workload, it would be the best option.