如何在Qt的第二台显示器上全屏显示窗口形式? [英] How to display window form fullscreen on second monitor in Qt?

问题描述

我在 linux 上使用 Qt5，我想在第二个屏幕(双显示器)上全屏显示窗口窗体?我试过这段代码，但它不起作用.还有其他办法吗?

I m using Qt5 on linux, I want to display window form fullscreen on second screen (dual monitor)? I tried this code but it doesnt work. Is there any other way?

QRect screenres = QApplication::desktop()->screenGeometry(1/*screenNumber*/);
Widget *secondDisplay = new Widget(); // Use your QWidget
secondDisplay->move(QPoint(screenres.x(), screenres.y()));
secondDisplay->resize(screenres.width(), screenres.height());

推荐答案

您可以使用QScreen.

QScreen *screen = QGuiApplication::screens()[1]; // specify which screen to use

SecondDisplay secondDisplay = new SecondDisplay(); // your widget

secondDisplay->move(screen->geometry().x(), screen->geometry().y());
secondDisplay->resize(screen->geometry().width(), screen->geometry().height());
secondDisplay->showFullScreen();

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