VAR & Video Memory

I know that I can get AGP memory without initialize OpenGL, but what about video memory?
it’s the same? What happen If I alloc some amount of vidmem, and then change the video mode? as far as I know, the entire contents of the vidmem are lost… (that’s why I integrate the VAR allocator with the graphic object)…

And before wglFreeMemoryNV:

. Should I disable the extension?
. Should I call glVertexArrayRange (NULL, 0)
(to disable the buffer/pointer)

well… thanks again…

  • Royconejo.

Note: This message is out of context, I’ve copied this from my last topic: http://www.opengl.org/discussion_boards/ubb/Forum3/HTML/002108.html