Hi I want to set the window opacity of some widgets so I started with ui.buttonLabel_4->setWindowOpacity(0.0);
which had no effect then I tried QGraphicsOpacityEffect* opacityEffect = new QGraphicsOpacityEffect(this); // make sure to create using new, since effect has to be alive as long as the target widget is using it. opacityEffect->setOpacity(0.0); // initially widget should be visible ui.buttonLabel_4->setGraphicsEffect(opacityEffect); which has the desired effect. My question is why did my first option not work? Thanks
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