def OnPrint(self, event):
""" Print this prescription """
if self.patient is None:
return
self.session.refresh(self.patient)
temp_file = tempfile.mktemp(".pdf")
generate_prescription(self.session, self.patient, self.txt_doctor.GetValue(), temp_file)
pdf_view = PDFViewer(None, title="Print Preview")
pdf_view.viewer.UsePrintDirect = ``False``
pdf_view.viewer.LoadFile(temp_file)
pdf_view.Show()
