The Page Information Structure(IM:XP)

Inside Macintosh: QuickDraw GX Printing Extensions and Drivers /

Chapter 4 - Printing Messages / Printing Messages Reference

The Page Information Structure
The page information structure, of data type gxPageInfoRecord, specifies information about a page that is being printed. It is used with the GXRenderPage message, which is described on page 4-96.
struct gxPageInfoRecord {
   long     docPageNum;
   long     copyNum;
   Boolean  formatChanged;
   Boolean  pageChanged;
   long     internalUse;
};
typedef struct gxPageInfoRecord gxPageInfoRecord;
Field Description

docPageNum
The number of the page about which this structure contains information.
copyNum
The copy number of the page that is being printed.
formatChanged
A Boolean value that is true if this page uses a different format than the previous (most recently printed) page and false if not.
pageChanged
A Boolean value that is true if this page has different contents than the previous (most recently printed) page and false if not.
internalUse
A private field for internal use.