QScreen::physicalDotsPerInch returns the same value as QDesktopWidget::physicalDpi.
But why do you think that QScreen::physicalDotsPerInch more reliable? P.S. I did not look at the Qt code yet, but I guess that I have to do it... -----Original Message----- From: Allan Sandfeld Jensen Sent: Sunday, February 23, 2014 4:10 PM To: interest@qt-project.org Cc: igor.mironc...@gmail.com ; Andre Somers Subject: Re: [Interest] DPI On Sunday 23 February 2014, igor.mironc...@gmail.com wrote: > I’m absolutely sure that Qt determines DPI wrong. > > I’ve received from Qt that my screen has 72 DpiY, where actually it has > 130. > > So my question is what can I use else then > QDesktopIWidget::physicalDpiY()? > I find QScreen::physicalDotsPerInch to be more reliable, but if the platform plugin you are using does not provide the information, then Qt will not have it. Though you can may be able to calculate it if you know the physical screen size. > I need cross-platform solution of finding average finger size (it’s > somewhere 10 mm)... > So 1cm? One inch is 2.54cm, so divide device DPI with 2.54 Best regards `Allan _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
