How can I used QPrinter with QPrinter::HighResolution to save png file

Qt Enthusiast

artwaw

Hi,
more convenient way would be to use i.e. QImage::save() if you think png. QPrinter might be convenient when you wish for pdf.
However to completely answer your question please refer to QPrinter documentation - you could print on QPainter and then use it together with QPicture or other format to save the data as png.

Qt Enthusiast

@artwaw

Since I tried it did not work .could you write a sample code

What does QPrinter::HighResolution does . how does it increases the levelOfDetail in QGraphicsView

jsulm

@Qt-Enthusiast said in How can I used QPrinter with QPrinter::HighResolution to save png file:

Since I tried it did not work

What did you try? What did not work?

QPrinter::HighResolution: http://doc.qt.io/qt-5/qprinter.html
"On Windows, sets the printer resolution to that defined for the printer in use. For PDF printing, sets the resolution of the PDF driver to 1200 dpi."

Qt Enthusiast

but I can save the image in png format with

QPrinter printer(QPrinter::HighResolution);
printer.setCreator(PRODUCT_NAME);
printer.setOutputFileName(nm);
QPainter painter(&printer);
render(&painter);

Please let me know what I am missing

jsulm

@Qt-Enthusiast I'm lost now. It is really hard to understand your questions.
Why do you try to save image using QPrinter?! Why don't you do it as @artwaw suggested?
"Please let me know what I am missing" - you should store images like @artwaw suggested not via QPrinter...