Legacy Document

Important: The information in this document is obsolete and should not be used for new development.

Inside Macintosh: Imaging With QuickDraw /

Chapter 6 - Offscreen Graphics Worlds / Offscreen Graphics Worlds Reference

Routines / Creating, Altering, and Disposing of Offscreen Graphics Worlds

DisposeScreenBuffer
The DisposeGWorld procedure uses the DisposeScreenBuffer procedure when disposing of an offscreen graphics world; generally, applications do not need to use DisposeScreenBuffer.
PROCEDURE DisposeScreenBuffer (offscreenPixMap: PixMapHandle);
offscreenPixMap
A handle to an existing offscreen PixMap record.

DESCRIPTION
The DisposeScreenBuffer procedure disposes of the memory allocated for the base address of an offscreen pixel image.

ASSEMBLY-LANGUAGE INFORMATION
The trap macro and routine selector for the DisposeScreenBuffer procedure are
Trap macro Selector
_QDExtensions $00040011