I need to write application which read data from the card and input this data where the cursor is. si this program will act as input device.
This application will apply to all application which are running while this application is running. So how can talk with windos to do so. My all input to all application which are currently runing will be from that program which read from the card if i open a word processor while my application is running and i put card to card reader the data from the card have to appear on the word proccessor where cursor is

 

 

See InputMethod