The display height of the item in pixels.
<button> <caption> <checkboxes> <clock> <dropdown> <image> <instruct> <listbox> <openended> <picture> <radiobuttons> <shape> <slider> <slidertrial> <text> <textbox> <video>
Use the heightpct attribute to get the width as a percentage of the canvas width.
The following displays the value of height in a text stimulus:
<text sometext>
/ items= ("height = <% text.foo.heightpx %>")
</text>
The following displays the value of height in an instruction page:
<page somepage>
height = <% defaults.heightpx %>
</page>