Inside Macintosh: QuickDraw GX Printing Extensions and Drivers /

Chapter 5 - Printing Functions for Message Overrides / Printing Functions Reference

Functions / Handling Error Conditions in a Message Override

GXCleanupStartPage

You can use the GXCleanupStartPage function to notify QuickDraw GX that it needs to clean up any actions that it took after receiving a GXStartPage message from your printing extension or printer driver.

void GXCleanupStartPage (void);

DESCRIPTION

You need to call the GXCleanupStartPage function if you encounter an error in your override of the GXStartPage message and you have already forwarded the message.

When you call GXCleanupStartPage, QuickDraw GX sends the GXCleanupStartPage message, which allows all of the message handlers to reverse any actions that they took in their overrides of the GXStartPage message, such as allocating storage or modifying state information.

SEE ALSO

The GXStartPage and GXCleanupStartPage messages are described in the chapter "Printing Messages."

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