"vgui_toolkit.cxx, line 117: no implementation of flush supplied"

now when I look into the code of vgui_mfc I see that flush is no more then

void vgui_mfc::flush()
{
  glFlush();
  run_till_idle();
}

I added this exact thing to vgui_qt and it seems to work now

am I doing something wrong by doing this? or was this thing just looked over?

--
Grtz
Rowin Heymans