Inside Macintosh: QuickDraw GX Printing Extensions and Drivers /

Chapter 4 - Printing Messages / Printing Messages Reference

Printing Messages / Print Object Messages

GXDefaultJob

QuickDraw GX sends the GXDefaultJob message when an application creates a new job. You can override the GXDefaultJob message to add to or modify the contents of the job object. Your override of the GXDefaultJob message must match the following formal declaration:

OSErr MyDefaultJob (void);

function result

An error code. The value noErr indicates that the operation was successful.

DESCRIPTION

QuickDraw GX sends the GXDefaultJob message when an application calls the GXNewJob function to create a new job object.

You override this message if you need to add additional data to the job object when it is created. After you forward this message down the message chain, you can add your own information to the job object or change information that was placed there by the default implementation.

The default implementation of this message provides the default information for this
job object.

SPECIAL CONSIDERATIONS

You can find an example of an override of the GXDefaultJob message in Listing 3-6 on page 3-28 in the chapter "Printer Drivers."

You never send the GXDefaultJob message yourself.

You must forward the GXDefaultJob message to other message handlers. Always forward it before you add or change job information.

RESULT CODES

gxSegmentLoadFailedErr	A required code segment could not be found, or there was not enough memory to load it.
gxPrUserAbortErr	The user has canceled printing.

SEE ALSO

The GXNewJob function is described in Inside Macintosh: QuickDraw GX Printing.

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