e absolute mouse area inside the rectangle (0, 0) to (width - 1, height - 1).<br  />
 Optinally this method creates a queue that stores absolute positions generated by <a class="el" href="classfabgl_1_1_mouse_af43b281ab7ec8480fc8ea6092f01a12a.html#af43b281ab7ec8480fc8ea6092f01a12a" title="Updates absolute position from the specified mouse delta event.">updateAbsolutePosition()</a>.<br  />
 This method must be called one time to initialize absolute positioning.<br  />
</p>
<dl class="params"><dt>Parameters</