Accelerators that perform scene capture are often unable to interleave 2D drawing operations (such as blits and direct writes) with 3D drawing operations between calls to the IDirect3DDevice::BeginScene and IDirect3DDevice::EndScene methods. Accelerators that have this restriction export the DirectDraw capability bit DDCAPS2_NO2DDURING3DSCENE. Applications should check this capability bit and, if it is present, wait until after the call to IDirect3DDevice::EndScene before calling DirectDraw blit, lock, or GetDC methods on the rendering surface.