How to make a preview?

[TomASS]

Hi, I'm using a QPrinter to print my docs.

QPrinter printer;

printer.setFullPage(true);
printer.setPageSize(QPrinter::A4);
QPrintDialog dlg( &printer );
if( dlg.exec() != QDialog::Accepted ) return;

printer.setFullPage(true);
printer.setPageSize(QPrinter::A4);
QPrintDialog dlg( &printer );
if( dlg.exec() != QDialog::Accepted ) return;

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I'ld like to make a preview?
The only idea as I have is print to PDF, but it is not elegant