<![CDATA[QSize size = desktopRect.size() * qreal(0.9); what does it mean?]]>Just watching some example here and kind of stacked on this line of code

QSize size = desktopRect.size() * qreal(0.9);

especially why do we need qreal(0.9) here? I know what qreal does but in this very situation i have no idea about purpose of this chunk of code.

]]>https://forum.qt.io/topic/72257/qsize-size-desktoprect-size-qreal-0-9-what-does-it-meanRSS for NodeFri, 10 Apr 2026 18:53:59 GMTThu, 13 Oct 2016 07:37:11 GMT60<![CDATA[Reply to QSize size = desktopRect.size() * qreal(0.9); what does it mean? on Thu, 13 Oct 2016 07:42:52 GMT]]>@Amir-Afendin I think to get 90% of desktopRect's size so that the widget size gets adjusted as per the desktop screen size?
0.9 = 90/100

]]>https://forum.qt.io/post/353680https://forum.qt.io/post/353680Thu, 13 Oct 2016 07:42:52 GMT