QPrinter 4.8 supportedResolutions() on Mac os X

[ch.d34]

Hello,

I'm trying to print an image with the QT 4.8 objects.
On my iMac, using xCode, the supportedResolutions function returns to me a single value (300 dpi) but the selected printer (after a QPrintDialog) offers resolutions up to 600dpi.
Is it a classic problem/limitation ?

Do you know how to access the full printer parameters ?

Pfuuu ... Thanks for your help.

Christophe