Topics tagged under "graphicview" | Qt Forum

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SOLVED Media player not working for multiple videos
General and Desktop • qt 5.5 media player videosurface graphicview • • Kinesis

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@Kinesis No need to feel bad - I'm helping here voluntary :-) I don't think you need to upload your code. If somebody has questions he/she can ask.
SOLVED GraphicsView crash with GraphicsVideoItem.
General and Desktop • mediaplayer form graphicview qgraphicsvideoi • • Fidchells_Eye

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Hey Joel Thanks the code lines: QGraphicsScene* scene = new QGraphicsScene(this); ui->GVpreview->setScene(scene); fixed the issue as I don't know how to do the scene view bit in the form editor.
how to sync zoom in two graphicviews with a single mouse wheelevent.
General and Desktop • zoom qframe graphicview • • vinay133

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Hi and welcome Many ways to do this, but here is my suggestion. Add a signal to your graphicview class signals: void MWheelActivated(bool ZoomIn); and hook it up to a slot in your mainwindow with the connect function. http://doc.qt.io/qt-5.5/signalsandslots.html then in GraphicsView::wheelEvent(QWheelEvent *e) you emit MWheelActivated ( (e->delta() > 0)); and No zooming here! Then in mainwindow slot mainwindow:: MWheelActivated ( bool ZoomIn ) { if ( ZoomIn ) { view1->zoomIn ( 6 ); view2->zoomIn ( 6 ); } else { view1->zoomOut ( 6 ); view2->zoomOut ( 6 ); } } Hope it helps.