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Inside Macintosh: QuickDraw GX Environment and Utilities /

Chapter 2 - QuickDraw GX Memory Management / QuickDraw GX Memory Management Reference

Functions / Loading and Unloading Objects

GXUnloadTransform

You can use the GXUnloadTransform function to unload a transform from memory.

void GXUnloadTransform(gxTransform target);

target

A reference to the transform object to be unloaded from memory.

DESCRIPTION

The GXUnloadTransform function moves a transform object from the active graphics client heap to disk storage. When you or QuickDraw GX use the GXUnloadTransform function to unload a transform object from memory to disk storage, QuickDraw GX stores its location in a 4-byte stub in the active graphics client heap. When you use the GXLoadTransform function to reload the object from disk storage to memory, QuickDraw GX uses the stub to find the stored transform object.

ERRORS, WARNINGS, AND NOTICES

Errors

out_of_memory

transform_is_nil

SEE ALSO

For additional information about loading objects from disk storage to memory and unloading objects from memory to disk storage, see the section "Loading and Unloading Objects" beginning on page 2-12.

The GXLoadTransform function is described in the previous section.