how can we write matlab code fr a projection keyboard?

we are planning to implement a projection keyboard as our project.our faculty told us tat we can write code thru matlab bt v r nt successful in finding a code for projection keyboard in matlab.v wud use a sensor or a cam,a projector n any optical source in it.so shud we search fr separate codes??

[Image Analyst]

It's difficult to read, especially for non-English speakers. Please correct spelling so we can understand. Firefox has a built-in spell checker if that helps. From your subject line, it looks like you're looking for this: http://www.mathworks.com/matlabcentral/answers/8026-best-way-s-to-master-matlab