QT如何将屏幕坐标点换算成距离

felix_fang_xin

于 2020-09-17 13:46:31 发布

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分类专栏： QT5

原文链接：https://blog.youkuaiyun.com/wsj18808050/article/details/54345537

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https://blog.youkuaiyun.com/wsj18808050/article/details/54345537

QGuiApplication app( argc, argv );

QScreen *pScreen = app.primaryScreen();
qDebug() << "primary screen width(cm):" << ( ( p->geometry().width() / pScreen->physicalDotsPerInchX() ) / 0.39370 );
qDebug() << "primary screen height(cm):" << ( ( pScreen->geometry().height() / pScreen->physicalDotsPerInchY() ) / 0.39370 );