2

i am new C++ QT programmer,i want to print multi pdf files via my printer device(or network printer),i searched and find this tutorial: Qt Handling PDF file but i can't compile MuPDF and Poppler and use these third-party libs in my application.my pdf file encrypted too and must print file from memory. is way to print pdf file via my printer device?

heshmat askari
  • 21
  • 4
  • Is it forbidden to use any third party program ? You may invoke ghostscript which understands PDF and supports a lot of output languages. – Oncaphillis Oct 25 '14 at 11:46
  • yes,my boss forbidden me to use third-library,can i print ghostscript file via printer device directly?can i convert my pdf file to ghostscript file easyly? – heshmat askari Oct 25 '14 at 11:57
  • windows platform(windows xp,7) – heshmat askari Oct 25 '14 at 12:33
  • With ghostscript you would still have to figure out which printer type to serve. I think the most simpole approach would be to invoke acrobat reader see [here](http://stackoverflow.com/questions/619158/adobe-reader-command-line-reference) a specially the /t option. – Oncaphillis Oct 25 '14 at 12:37
  • in realy my pdf is encrypted and must not save in pdf file on disk, for this reason i can't using command line acrobat reader. – heshmat askari Oct 25 '14 at 13:19
  • how can i use ghostscript in QT? – heshmat askari Oct 25 '14 at 13:21
  • Well if you're not allowed to save on disk my guess is that ghostscript won't help you either. The part with the encryption is actually a quite substantial. Ghostscript would just be a PDF translator which generates printer specific output which you might simply copy to the printer of your choosing. – Oncaphillis Oct 25 '14 at 13:25
  • so,what can i do?any idea? – heshmat askari Oct 25 '14 at 13:29
  • don't know if it's possible to pipe a pdf stream into into acrobat reader from your aplication. – Oncaphillis Oct 25 '14 at 13:43

1 Answers1

2

Hello you can use something like this.

QPrinter printer(QPrinter::HighResolution);
printer.setOrientation(QPrinter::Portrait);
QPrintDialog dlg(&printer, this);
dlg.setWindowTitle("Print");

if (dlg.exec() == QDialog::Accepted)
{
    QWidget* widget = new QWidget(his); // this widget is your pdf widget
    QPixmap printPixmap(widget->width(),widget->height());
    widget->render(&printPixmap,QPoint(),QRegion(0,0,widget->width(),widget->height()));
    QPainter painterPixmap(&printer);
    painterPixmap.scale(4,4);
    painterPixmap.drawPixmap(printer.pageRect().topLeft(), printPixmap, printPixmap.rect());
}
Burak Hamuryen
  • 128
  • 6