The horizontal coordinate of the most recent gaze point in eye tracker units.
<eyetracker> <eyetracker> <eyetracker>
This property reports the last horizontal position of the gaze points in the eyetracker's internal coordinate system. For gaze point in display coordinates (i.e., pixels), see the lastx property.
The following displays the value of lastex in a text stimulus:
<text sometext>
/ items= ("height = <% eyetracker.lastex %>")
</text>