With QPrinter::HighResolution not printing

Question

I implement the ability to print reports in my project. Reports are presented as HTML content. I use for print QWebEnginePage. I need high resolution print output for reports:

QPrinter printer = new QPrinter(QPrinter::HighResolution);

But when printing with the "print" function, print fails, with message in debug:

QImage: out of memory, returning null image

When printing with ScreenResolution, everything is fine, but the result is poor quality. Version Qt - 5.10.1

score 0 · Answer 1 · answered Mar 04 '18 at 22:09

0

Probably you are indeed running out of memory. Try to convert your web page into something that renders better, e.g. PDF and print the PDF instead.

answered Mar 04 '18 at 22:09

Jens

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It is possible to print the PDF, with Qt libraries? – soaup Mar 05 '18 at 02:01
I thought there was but I was wrong, PDFium is interesting, but this means loading PDF into a QImage again - which is not what we want here. – Jens Mar 05 '18 at 14:14
There is no such problem on version 5.8 – soaup Mar 06 '18 at 01:32

With QPrinter::HighResolution not printing

1 Answers1