how to access a web service from a mobile POS Device application in c and to store the accessed data in the device to use it (like printing bills for a collection) when it is required.can anyone please give any guidance for the above requirement iam totally new with POS development and i have only reached the first stage of research on available details on POS which i should say was not very successful.any valuable information regarding the same will be great

please provide any useful information on this topic as iam also on the same path of searching info about POS(point of sale) device (arm9) programming in c as i have with me a self diagonising application provided along with sdk of the device which is in c and host operating system is fedora 14 .