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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

GXUnloadTag

You can use the GXUnloadTag function to unload a tag from memory.

void GXUnloadTag(gxTag target);

target

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

DESCRIPTION

The GXUnloadTag function moves a tag object from the active graphics client heap to disk storage. When you or QuickDraw GX use the GXUnloadTag function to unload a tag 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 GXLoadTag function to reload the object from disk storage to memory, QuickDraw GX uses the stub to find the stored tag object.

ERRORS, WARNINGS, AND NOTICES

Errors

out_of_memory

tag_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 GXLoadTag function is described in the previous section.