The Change Printer plug-in allows you to switch between printers without user interaction using the optShowDlg parameter in the PCCP_ChangePrinter function. If the optShowDlg is “False”, then the function does NOT require the user to press “OK” in the print dialog; the function confirms the print automatically when this parameter is set to "False". Please note that the user will briefly see the print dialog displayed by FileMaker before the function confirms the printing job.