ADC Home > Reference Library > Technical Q&As > Legacy Documents > Printing >

Legacy Documentclose button

Important: This document is part of the Legacy section of the ADC Reference Library. This information should not be used for new development.

Current information on this Reference Library topic can be found here:

ParamErr from PrClosePage

Q: When I'm printing and I call PrClosePage after the end of the page, I get a paramErr (-50) error. What's that mean?

A: There are two ways to get this error. The most common is to pass a bad GrafPort to PrClosePage. If you don't pass back the port you got from PrOpenPage, then you will (rightfully) get an error.

The second way to get a paramErr from PrClosePage is more esoteric. If you've hidded the menu bar before printing, and leave it hidden, some drivers will report a paramErr when PrClosePage is called. What's happening is that somewhere deep in the Print Manager, one of the Print Manager routines is calling a QD function with the Menu Bar's rectangle as the parameter. This QuickDraw function sees the empty rectangle (because you've hidden the menu bar), and sets QDError to paramErr. The driver checks QDError when it's done printing, sees the error, and sets PrError to the error.


Note:
this only happens on 68K machines, not on PPCs, although 68k QuickDraw in general does less error checking, and seldom sets QDError.

[Dec 07 1995]

Did this document help you?
Yes: Tell us what works for you.
It’s good, but: Report typos, inaccuracies, and so forth.
It wasn’t helpful: Tell us what would have helped.