Wt

I want to show my dialog in the top right corner of the page:

Wt::WDialog *dialog = new Wt::WDialog;
dialog->setOffsets(20, Wt::Top | Wt::Right);
dialog->show();

Then it shows in correct position, but when I try to drag my dialog, it 'jumps' to the left side of the page.

I use Wt 3.3.1