[Interest] DPI
igor.mironchik at gmail.com
igor.mironchik at gmail.com
Sun Feb 23 13:24:54 CET 2014
Hi.
I want to determine how much pixels in 10 mm.
I use the next calculations:
static const qreal fingerSize = 0.0393700787 * 10;
static const qreal h = (qreal) QApplication::desktop()->physicalDpiY() * fingerSize;
And this calculations return to me 28 that on my desktop is 5 mm only.
0.0393700787 is how much inches in millimeter...
What am I doing wrong?
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