   how to StretchRect in managed pool?
  In DirectX, I can StretchRect between D3DPOOL_DEFAULT,but how can I stretch between managed pool? or from managed pool to default pool?I want to upload a texture into a managed pool, and scale it smaller into another texture, either managed or in video memory.I tried GetDC() of the two texture then StretchBlt(hdcSource, hdcDest), the texture is scaled, but somehow lots of color noise comes out,though the formats of textures are the same.   