Is it possible to find out if a twain scanner is indeed connected or powered on before calling the acquire command? Imageen finds the twain driver regardless if the scanner is indeed active. I would like to be able to check its status before i try to acquire an image.
The first problem to solve is to determine if the Printer/Scanner is online. Unfortunately baised on web searches it appears that there is no way to do this unless a job has been sent to the printer before calling the function.
Hi, I think there are a way to find if scanner is power on and connected, by checking if scanner is in the list of connected sub device, you have to use windows api to get this list and then check if the name of your scanner is in the list or not.
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twain question
Posted - Oct 29 2012 : 10:39:57
