OpenCVdotnet-Track color movement through a webcam

Question

Hi friends....

i need a big help to track the color through a webcam.
My objective is to track the movement of an object by the webcam and reflect the same movement in appliction.

so i thought if i can track the movement based on a color, then it will be easy.

so simply what i want is; if the color moves left, then application should
output the direction in a textbox saying "Left".
if it is right.....then "Right"

likewise i need all direction.....
My final task is something else...but if you can help me on this base step...then rest i can do my own.

dont forget that this movement should be captured through a web cam......

you can use opencvdotnet library for this.

please somebody reply......

thanks.....

Charith