Some question about function StartPage() in Rastertohp.c

[Michael Sweet]

Zhang xin wrote:
> ...
> if ((!Duplex || (Page & 1)) && header->MediaPosition)

"!Duplex || (Page & 1)" means "not double-sided or on an odd-numbered
page".  "Page & 1" is the same as "Page % 2" but is faster.

In this case, the HP driver needs to send certain commands for the
front side of pages - when printing the back side, different commands
need to be sent.

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______________________________________________________________________
Michael Sweet, Easy Software Products           mike at easysw dot com
Internet Printing and Publishing Software        http://www.easysw.com