[Qt-interest] Poor printing performance with 4.4.3

[Acenes]

I was able to make a workaround now which will reduce printing time to a 
fair amount:

1. Get network share name of the printer.
2. If no share name found (local printer), print normal.
3. For shared printer, print to file. Then copy the file to the printer 
share name.

This way the printing at 600 DPI lasts about 6 seconds for the network laser 
printer, compared to 75 seconds (!) when printing directly.

Ugly workaround, but at least a temporary solution until Qt gets a better 
printer interface for windows.