Posted by LordOfBikes on Aug 13, 2014; 10:05pm
URL: https://forum.librecad.org/Printing-A0-to-PDF-crashes-librecad-on-windows-tp5710273p5710303.html

Dongxu,

I think I've fixed "Export as PDF" with my latest commits.

Qt itself can handle export to PDF, the problem was QPrinterDialog. I found it in the Qt source codes. The Windows and QSX version of QPrinterDialog returns Rejected if the format is not equal to QPrinter::NativeFormat. So printing was abandoned. It worked on Linux because of native OS support for Print to PDF.

I generally tested the code on Windows, I exported an A0 drawing with test code, but have to check the commited version on Windows tomorrow.

If this works on Windows, this could be the solution for the threads original issue too. When export to PDF within LC works, it is not necessary to print on a virtual PDF printer like PDF creator or FreePDF which could also have been the cause of the exception.

Armin