Hi, The effect is applied to the widget including all its children. In your example m_effect1 is getting applied both to pushButton and stackedWidget. Having m_effect2 on pushButton introduces the warnings since nested effects are not really supported but that is not what you want anyway.
Try making pushButton not to be a child of stackedWidget. Best regards, Laszlo From: interest-bounces+laszlo.agocs=digia....@qt-project.org [mailto:interest-bounces+laszlo.agocs=digia....@qt-project.org] On Behalf Of bob smith Sent: 28. november 2013 10:35 To: interest@qt-project.org Subject: [Interest] Beginning with graphics effects Hi I apologies if this message appears twice - was having problems registering with list (I surely am a noob!) I am new to Qt and have started playing with graphics effect and cannot quite achieve what I want. I have a an object of type QWidget that has a QButton as a child. I want to apply a different effect to the QWidget and the button - m_effect1 = new QGraphicsOpacityEffect(); m_effect2 = new QGraphicsOpacityEffect(); m_effect1->setOpacity(1.0); m_effect2->setOpacity(1.0); ui.pushButton->setGraphicsEffect(m_effect2); ui.stackedWidget->setGraphicsEffect(m_effect1); When I run the Qt complains the a paint device can only be painted by one painter at a time Could anyone be kind enough to help me? Thanks Bob
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