Subcategories

• General and Desktop

  This is where all the desktop OS and general Qt questions belong.
  55928
  Topics
  312511
  Posts

  

  Hi, i would like to derive my own CMainWindow - class from QMainWindow. I would like to adapt this new class to my wishes. (e.g. Menu-Bar, Buttons, ...) Now i would like to proceed as follows: For class information I can choose the base class. Can I set QtCreator to select my CMainWindow - class? Or is there another way to create it using the QtCreator? (Plugin,....)
• Mobile and Embedded

  The forum for developing everything embedded: Linux, WinCE, Symbian, MeeGo... you name it.
  10358
  Topics
  49662
  Posts

  

  Hello Trying to create a static qt build using the master branch of meta-qt5. However, Qt5Script.a and some others are not being built. The recepies are being pulled in correctly. Is this a known issue and does anybody know of a fix. kind regards Björn
• QML and Qt Quick

  Looking for The Bling Thing(tm)? Post here!
  12997
  Topics
  55491
  Posts

  

  Hi. I am using Qt 5.9.1,i am trying to connect MS Azure IoT Hub using QMqtt Protocol through the Boot2Qt device , while running this application to device, i am getting this error like error while loading shared libraries: libQt5Mqtt.so.5: cannot open shared object file: No such file or directory i have already installed Mqtt library and i am following this link to connect Ms Azure IoT Hub. Please help me.. Thanks
• Tools

  Have a question about Qt Creator, our cross-platform IDE, or any of the other tools? Ask here!
  4805
  Topics
  23427
  Posts

  

  Hi, Does QtCreator have a tool to automatically sort Property to respect the coding convention? I know it exist for CSS language. Let's say I have: Image { source: "qrc:/Resources.png" fillMode: Image.PreserveAspectFit anchors.rightMargin: 20 id: myId anchors.bottom: id.bottom anchors.right: id.right anchors.bottomMargin: 20 width: parent.width *0.1 MouseArea{ anchors.fill: parent onClicked: { if(root.state=== modelData.index) root.state= -1 else root.state= modelData.index } } } I would like to have a tool that would automatically sort the types in the file like something like this: Image { id: myId source: "qrc:/Resources.png" fillMode: Image.PreserveAspectFit width: parent.width *0.1 anchors.bottom: id.bottom anchors.right: id.right anchors.bottomMargin: 20 anchors.rightMargin: 20 MouseArea{ anchors.fill: parent onClicked: { if(root.state=== modelData.index) root.state= -1 else root.state= modelData.index } } } Thanks!
• Installation and Deployment

  Your Qt just doesn't want to build? Your compiler can't find the libs? Here's where you find comfort and understanding. And help.
  6761
  Topics
  37044
  Posts

  

  Dear @JonB I am working on what you and @SGaist said... Yes the problem was in Makefile.Release! So after cleaning every file which generated with qmake command I can't find MySQL library even I address both include and lib folder in short form: F:\Softwares\Qt\5.13.1\Src\qtbase\src\plugins\sqldrivers>qmake -- MYSQL_INCDIR=c:\PROGRA~1\MySQL\MYSQLS~1.0\include MYSQL_LIBDIR=c:\PROGRA~1\MySQL\MYSQLS~1.0\lib Info: creating stash file F:\Softwares\Qt\5.13.1\Src\qtbase\src\plugins\sqldrivers\.qmake.stash Running configuration tests... Checking for DB2 (IBM)... no Checking for InterBase... no Checking for MySQL... no Checking for OCI (Oracle)... no Checking for ODBC... no Checking for PostgreSQL... no Checking for SQLite (version 2)... no Checking for TDS (Sybase)... no Done running configuration tests. Configure summary: Qt Sql Drivers: DB2 (IBM) .............................. no InterBase .............................. no MySql .................................. no OCI (Oracle) ........................... no ODBC ................................... no PostgreSQL ............................. no SQLite2 ................................ no SQLite ................................. yes Using system provided SQLite ......... no TDS (Sybase) ........................... no Qt is now configured for building. Just run 'nmake'. Once everything is built, you must run 'nmake install'. Qt will be installed into 'F:\Softwares\Qt\5.13.1\msvc2017_64'. Prior to reconfiguration, make sure you remove any leftovers from the previous build. Whatever I did it just tells MySQL .... no! If I use MinGW command line it will find it without any problem but in case of using MSVC this error happens! Can you point me to right direction? Thank you so much!
• Game Development

  What can we say - we like games. And you can use Qt to write some. Questions? Ask here.
  692
  Topics
  3110
  Posts

  

  Hi, [quote author="cseder" date="1423513071"]But Qt has an excellent solution which makes working with OpenGL a lot simpler: The QGLWidget class is a widget for rendering OpenGL graphics. Read all about it: "QGLWidget docs":http://doc.qt.io/qt-5/qglwidget.html#details.[/quote]QGLWidget is deprecated. Use "QOpenGLWidget":http://doc.qt.io/qt-5/qopenglwidget.html instead. Also check out "VoltAir":http://blog.qt.io/blog/2014/07/21/google-labs-voltair-game-built-with-qt/ -- it is a game that Google built on top of Qt Quick.
• Qt WebKit

  Questions about Qt WebKit and related topics? Post here!
  1405
  Topics
  5426
  Posts

  

  Hello, I have built and installed QtWebKit and QtWebView from source https://code.qt.io/cgit/ at tag 5.12.5. I have built the sample project minibrowser.pro. When I run the project, it says : No WebView plug-in found! I'm running Ubuntu 19.04 and using Qt5.12.5. The WebView libraries are installed in <QT_INSTALL_DIR>/lib Plugins loaded: libqwbmp, libqwebp. Another message says: On QtCore unload, "/usr/local/Qt-5.12.5/qml/QtWebView/libdeclarative_webview.so" was leaked, with 2 users Any help would be precious ;)
• QtWebEngine

  Discussions and questions on QtWebEngine
  685
  Topics
  1988
  Posts

  

  Hi, I have some urls with relative paths that begin with "../" but the url's path that I received from QWebEnginePage::linkHovered begins with the current directory instead of the parent directory. It's not only the QWebEnginePage::linkHovered that doesn't work for me, if I try to open these urls the QtWebEngine try to use the wrong path. I'd like to know where is the settings to make the QtWebEngine interpret relative path correctly ? I don't know if it's related to the fact that I use a custom scheme.
• Language Bindings

  You're using Qt with other languages than C++, eh? Post here!
  736
  Topics
  2981
  Posts

  

  Hi, What version of Qt are you using ? What Linux distribution are you running ? What versions of OpenSSL do you have installed ? You are not connecting the error related signals anywhere, you should so you'll have more information about what is going wrong. On a side note, there's no need to create your QNetworkRequest on the the heap as shown in the QNetworkAccessManager documentation.
• 3rd Party Software

  Combining Qt with 3rd party libraries or components? Ask here!
  869
  Topics
  4398
  Posts

  

  Hi, Do you mean do something like the base64 example does but using a file to store the result ?
• Qt for Python

  For discussion and questions about Qt for Python (PySide 2)

  279
  Topics
  982
  Posts

  

  I made some progress.. I'm now using QTextDocument. But I'm stuck how to set the right paper margins. Here's my code: printer = QPrinter(QPrinter.HighResolution) printer.setFullPage(True) printer.setPageMargins(10,10.0,10.0,10.0, QPrinter.Millimeter) dialog = QPrintDialog(printer) header = """ <html> <table width="100%" border=1 cellspacing=0>\n <tr><td bgcolor="lightgray"><font size="+1"> <b><i>Softwarename</i></b></font>\n <tr><td>Version 0.1 | Copyright |\n </table> </html>""" html = header + "\n Content..." document = QtGui.QTextDocument() document.setHtml(html) document.setPageSize(???) I want to get rid of the extra space of 20 mm from the QTextDocument. Do you know how to do this?
• Qt for WebAssembly

  Specific issues when using Qt for WebAssembly

  19
  Topics
  113
  Posts

  

  @lorn-potter Do I need to do a complete downgrade? I have version 1.39.0 right now. Could that be what's causing the problem with the wasm-ld error saying that my object files aren't of machine-type wasm32?