class="parameter"><code>params</code></em>.  For active variables not backed
            by a buffer object, -1 is written to <em class="parameter"><code>params</code></em>, regardless of the variable
            type.
        </p>
        <p>
            For the property <code class="constant">GL_MATRIX_STRIDE</code>, a single integer identifying the stride
            between columns of a column-major matrix or rows of a row-major matrix is
            written to <em class="parameter"><code>params</code><