"5.6.2 windows" () QWidgetPrivate::setGeometry_sys QDesktopScreenWidget(0x1c44dc0cd00) 0 0 1920 1080 isMoveIn= true QWidgetPrivate::setGeometry_sys QDesktopScreenWidget(0x1c44dc0cd00) isMove= false isResize= true QWidgetPrivate::setGeometry_sys QDesktopWidget(0x1c44dc15b50, name="desktop") 0 0 1920 1080 isMoveIn= true QWidgetPrivate::setGeometry_sys QDesktopWidget(0x1c44dc15b50, name="desktop") isMove= false isResize= true QWidget::resize QSize(200, 200) QWidget::resize sys QWidgetPrivate::setGeometry_sys Widget(0xb5feffc58) 0 0 200 200 isMoveIn= false QWidgetPrivate::setGeometry_sys Widget(0xb5feffc58) isMove= false isResize= true QWidgetPrivate::setGeometry_sys q->windowHandle()->setGeometry QRect(0,0 200x200) QWindow::setGeometry QRect(640,280 640x480) => QRect(0,0 200x200) Widget::showEvent QSize(200, 200)