lass="Identifier">Vec2f</span>         <span class="Comment">## the new mouse position</span>
    
  <span class="Keyword">of</span> <span class="Identifier">iekMouseEnter</span><span class="Other">,</span> <span class="Identifier">iekMouseLeave</span><span class="Other">:</span>
    <span class="Keyword">nil</span>
  <span class="Keyword">of</span> <span class="Identifier">iekMouseScroll</span><span class="Other">:</span>
      <span class="Identifier">scrollPos</span><span class="Operator">*</span><span c