Greetings,
some people say directdraw (2d) and opengl does in no cercumstances work toghether. Other people say it may work to directly render to a direct draw surface using opengl.
Nobody knows on what it depends as it seems…
However i’ve found a library called MGL that allows to directly render to a direct draw surface. (sounds too good to be true 
) Here’s a link to it: http://www.scitechsoft.com/dp_mgl.html
Althought i hav’nt tested it yet, i thought i better let you know because there are a lot of people that mess around with direct draw and opengl…