arameter"><code>programInterface</code></em> of program object
            <em class="parameter"><code>program</code></em>.  For each resource, values for <em class="parameter"><code>propCount</code></em> properties specified
            by the array <em class="parameter"><code>props</code></em> are returned.  <em class="parameter"><code>propCount</code></em> may not be zero.
            An error is generated if any value
            in <em class="parameter"><code>props</code></em> is not one of the propert