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

Line Height Constant

You use this constant to specify that ATSUI use the natural line ascent and descent values dictated by the font and pixel size to determine line ascent and descent. You can set the line ascent text layout attribute for a line or an entire text layout object by passing the kATSULineAscentTag tag to the functions ATSUSetLineControls and ATSUSetLayoutControls, respectively. You can set the line descent text layout attribute for a line or an entire text layout object by passing the kATSULineDescentTag tag to the functions ATSUSetLineControls and ATSUSetLayoutControls, respectively.

enum { kATSUseLineHeight= 0x7FFFFFFF, };

Constant description

kATSUseLineHeight: Specifies that ATSUI use the natural line ascent and descent values dictated by the font and pixel size to determine line ascent and descent in a line or entire text layout object.

VERSION NOTES

Available beginning with ATSUI 1.0.