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    • SOLVED Using old QGLwidget from Qt 4.8.2
      General and Desktop • qt4.8 qglwidget qtopengl • • QttCoreTester  

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      The issue is no longer observed with the latest Intel graphics driver beta version(27.20.100.8581). Fixed in latest release version 27.20.100.8587
    • UNSOLVED Is it possible to view background color or other widgets behind QGLWidget by using transparent GL background (glClearColor)?
      General and Desktop • background transparency qglwidget alpha • • thehans  

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    • UNSOLVED QOpenGLWidget::grabFrameBuffer() always ignores alpha channel?
      General and Desktop • qopenglwidget transparency qglwidget alpha grabframebuffer • • thehans  

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      @thehans said in QOpenGLWidget::grabFrameBuffer() always ignores alpha channel?: Unfortunately I'm on Ubuntu 18.04 which is still on 5.9.5. Is there any chance of this fix being backported to earlier versions? Qt 5.9 is now in "very strict" update mode, which means in only receives security fixes. It no longer receives bug fixes. Your options are: Download and use Qt 5.12 or newer from https://www.qt.io/download-open-source, OR Apply the patch to your copy of Qt 5.9 and build it from source. I think the first option is easier.
    • SOLVED How to make mouseMoveEvent and keyPressEvent to be called interchangeably?
      General and Desktop • mouseevent qevent qglwidget keypressevent • • BoboFuego  

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      @BoboFuego said in How to make mouseMoveEvent and keyPressEvent to be called interchangeably?: I don't know how to mark this thread as solved "Topic Tools" at the bottom right side and then "Mark as Solved".
    • UNSOLVED Problem with QTest, QGlWidget, and Qt5
      General and Desktop • qt5.5.1 qglwidget qtest glreadpixels • • Alain38 0  

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      @Alain38-0 said in Problem with QTest, QGlWidget, and Qt5: I have found a similar problem in my application Please provide a Short, Self Contained, Correct (Compilable), Example (http://www.sscce.org/ ). Remove the confidential and unnecessary elements, and give us a compilable example (including a main() function, a simple class, and an output display) that demonstrates the problem. Otherwise, it's difficult to understand the problem.
    • UNSOLVED Transparent QWidget over a QGLWidget
      General and Desktop • qwidget qglwidget transparent • • NIXIN  

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      Also, if you are on Qt 5.4 or newer, I suggest replacing QGLWidget with QOpenGLWidget. QOpenGLWidget resolves numerous issues with QGLWidget: https://blog.qt.io/blog/2014/09/10/qt-weekly-19-qopenglwidget/
    • UNSOLVED EGLFS problem, QGraphicsView using QGLWidget as viewport
      General and Desktop • qgraphicsview eglfs qglwidget • • luca  

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      Hi, I may be wrong but based on this, it seems to be an unsupported use case for EGLFS.
    • UNSOLVED QOpenGLWidget and Setviewport to QGraphicsView are not working with glsl
      Mobile and Embedded • qgraphicsitem qopenglwidget qglwidget glsl setviewport • • KimYuSung  

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    • UNSOLVED Random crash on using renderText() of QGLWidget in Qt 5.5
      General and Desktop • qt5.5 rendering qglwidget • • Rashi  

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    • QGLWidget/QOpenGLWidget with transparent background
      General and Desktop • opengl qopenglwidget background transparency qglwidget transparent overlay alpha translucent see throught • • FredeHo  

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    • QGLWidget::renderText() generates multiple strings on the screen on different heights.
      General and Desktop • qglwidget • • Vincent van der Locht  

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    • Flickering when moving QGraphicsItem and using centerOn() periodically
      General and Desktop • qt5.5 qgraphicsscene qgraphicsitem update qglwidget viewport • • Mick  

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    • QObject::connect: No such signal GLWidget::textChanged
      General and Desktop • qglwidget • • CroCo  

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      Hi, You connect statement is wrong. It should be: connect(glwidget, SIGNAL(textChanged(QString)), ui->textEdit, SLOT(setText(QString))); Never put the variable name in the SIGNAL or SLOT macros
    • Migrating from QGLWidget to QOpenGLWidget
      General and Desktop • qopenglwidget qglwidget • • tomas.soltys  

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    • Modal dialog over OpenGL widget: openGL surface doesn't get redrawn and a mess is left behind
      General and Desktop • opengl qglwidget modal dialog • • floatingWoods  

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      Thank you for your reply. Yes, that is probably the best to do. It will however require to switch to Qt5.4, and that is a larger endeavour. Will try that. Thanks again!
    • GL accelerated javascript animations with QGraphicsWebView
      General and Desktop • javascript performance qglwidget qgraphicswebvie • • Harold  

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