Flipping Upside Down Image

Question

Hi, I am currently making a video analysis application and i am using sharpercv (.net wrapper for opencv). I am also using the directshow.net library. I am using a callback fuction to analyse each frame. An intptr to the frame/image is provided. To use the sharpercv function the image has to be converted to a structure that sharpercv understands. I have been told windows handles images upside down. So what is the best way to flip the image stored in the buffer before i try and marshal the data over to the sharpercv structure? Any help is welcome and i hope my rambling makes some sense. Thanks in advance Regards Paul Okesola