- 21. INTRODUCTION................................................................................................................. 61.1. HOW TO DOWNLOAD DATA FROM SCANNER ........................................................... 61.2. COM DEFINITION FOR HT660/PA96X/PA982/RH767 ................................................... 71.3. USEFUL SAMPLE PROGRAM ....................................................................................... 71.4. GET SDK FROM UNITECH?........................................................................................... 72. USI.DLL – UNITECH SCANNER INTERFACE DLL........................................................... 82.1. Register the application to the USI DLL .................................................................................................................. 82.2. Unregister the application from the USI.DLL ......................................................................................................... 92.3. Enable / Disable Scanner............................................................................................................................................. 92.4. Reset Scanner ................................................................................................................................................................ 92.5. Get error code ................................................................................................................................................................ 92.6. Returns the system error code .................................................................................................................................. 92.7. Get scan data................................................................................................................................................................ 102.8. Get length of scanned data....................................................................................................................................... 112.9. Get Symbology name ................................................................................................................................................. 112.10. Clear scan data system buffer ............................................................................................................................. 122.11. Good read indicator ................................................................................................................................................ 122.12. Wait for acknowledgement of the last sent command .................................................................................. 122.13. Save setting to profiles .......................................................................................................................................... 122.14. Save scanner setting into specified file............................................................................................................. 132.15. Change scanner setting from specified setting profile ................................................................................. 132.16. Automatically enable scanner beam with pressing trigger key .................................................................. 132.17. Stop auto scanning function ................................................................................................................................ 142.18. Check if auto scanning is enable ........................................................................................................................ 142.19. Check if Scan2Key.exe program is running or not......................................................................................... 142.20. Test if Scan2Key is enabled.................................................................................................................................. 14