Looking for a windows C# developer. We need a class library to do Twain scanning. No third party tools. Must have List of possible scanners. You will need to be able to select a twain scanning device. It will need to tell you if paper is in the scanner if scanner has that ability. Scan single or duplex. Then save images to multiple formats. Will need small test app with it. We are currently using an Ambir 490i. We are currently using .Net framework 4.5.