igor.mironc...@gmail.com schreef op 23-2-2014 13:24:
Hi.
I want to determine how much pixels in 10 mm.
I use the next calculations:
staticconstqrealfingerSize=0.0393700787*10;
staticconstqrealh=
(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?
Are you sure that the right physicalDpi is returned? That is not a value
you can absolutely rely on.
André
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