PATH Mac OS 8 and 9 Developer Documentation > Text and Other International Services > Apple Type Services for Unicode Imaging (ATSUI) > Apple Type Services for Unicode Imaging Reference

     

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Hit-Testing

• ATSUPositionToOffset obtains the edge offset(s) that correspond to the glyph nearest a mouse-down event.

• ATSUOffsetToPosition obtains the caret position(s) that correspond to an edge offset.