[SOLVED] Why QPrinter need QtGUI

AcerExtensa

Tell us what do you use and how do you do it! Maybe you have something what peoples with PostScript printers all other the world are looking for...

Pitchou

So, if I undestand what you said... Before Qt4.4, it was possible to use QPrinter to generate a PDF file but now, with Qt I can't print a PDF file with QPrinter if my Linux doesn't have a GUI ? ...

Do you know another way to print a QImage in a PDF file, without using GUI ?

AcerExtensa

QImage and QPrinter inherits QPaintDevice, and QPaintDevice is an GUI Class. So you need QtGUI library if you would like to use this two classes.

Pitchou

I have QtGUI library installed on the OS which is OpenSuse 11. But it's a server OS and it doesn't have server X connexion ...

So, I'm happy :/ My app can't work on the server.

Thanks for your answer.

AcerExtensa

you can still use virtual framebuffer like Xvfb

Pitchou

Thanks AcerExtensa ! XVFB was a good idea and now, the app works well ! :D
This thread can be closed

AcerExtensa

Please add prefix "[SOLVED]" to the left of the topic subject. Thanks!

fernando.lopes

Hi Pitchou.
How did you use XVFB to create the QPrinter?

I need to make a PDF printer in a console application and I get the same error you got.

Pitchou

Hi Fernando, I changed my way. I do not use XVFB anymore because I found a solution to use QPriner without serverX.

My error was to use QApplication, which require a serverX. I found a trick !

When you use QApplication, I think you use it like this :
@QApplication a(argc, argv,);@

Change it to have something like this : @QApplication a(argc, argv, false);@

The false attribute will force the program to work without a serverX and you can use QPrinter without any problem

fernando.lopes

Thank you Pitchou!
It is working now! :D