capturing images from imaging devices

I am at the moment trying to solve a problem that involves imaging .This being a web based application now has a new business need that involves capturing images from imaging devices such as cameras , scanners , web cams . The web application needs to be modified for this new functionality to take effect .The web application was written using the visual studio frame work in the c# programming language . Please do tell if you may know of how to make changes to add an imaging functionality into such an application . in the mean time , i do have a request .I would like to have an application that has been written in c# for the purpose of a web cam sent to my inbox as an attachment to an email , i have been trying to download what is there in the site , but nothing seems to be moving . I would like to use the application as a building block for problem solving as per my imaging issue .