Inside Macintosh: QuickDraw GX Environment and Utilities /

Chapter 8 - QuickDraw GX Mathematics / QuickDraw GX Mathematics Reference

Mapping Functions / Manipulating and Applying Mappings

CopyToMapping

You can use the CopyToMapping function to copy a mapping from one location to another location.

gxMapping *CopyToMapping(gxMapping *target, 
                        const gxMapping *source);

target

A pointer to the destination mapping. On return, it is a copy of the source mapping.

source

A pointer to the mapping to be copied.

function result

A pointer to the copied mapping, which is also the target mapping.

DESCRIPTION

The CopyToMapping function copies the mapping pointed to by the source parameter into the location pointed to by the target parameter. Note that it may be faster in C to simply copy the gxMapping structure into another gxMapping structure than to call this function.

ERRORS, WARNINGS, AND NOTICES

Errors

mapping_is_nil