d><a href="http://www.opengl.org/registry/specs/I3D/wgl_swap_frame_usage.txt">I3D_swap_frame_usage</a></td></tr>
<tr><td><br></td><td></td><td></td></tr>
<tr><td class="num">40</td><td>&nbsp;</td><td><a href="http://www.opengl.org/registry/specs/NV/DX_interop.txt">NV_DX_interop</a></td></tr>
<tr><td class="num">41</td><td>&nbsp;</td><td><a href="http://www.opengl.org/registry/specs/NV/DX_interop2.txt">NV_DX_interop2</a></td></tr>
<tr><td class="num">42</td><td>&nbsp;</td><td><a href="http://www.opengl.o