turn off print dialog box for a kiosk app

Hi Microsoft/ Windows experts..

I want to turn off the print dialog box on my pc windows xp and 7 because I have a Kiosk application so, Users need to print without print dialog box.. the kiosk has their default printer, so letters , tickets need to print when they hit or press print button.. no need to choose the printer , because kioks has only one printer each one.. so, please put or create a solution for this.. add-on or activex or a function to disable or turn off the print dialog box.. please..

Also, I need the command to call the print button that prints directly but on my web page button .. because on kiosk we hide the tool bar..

Thanks.