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1. INTRODUCTION................................................................................................................. 5
1.1 How to download data from scanner....................................................................................................................... 5
1.2 COM definition for PA500............................................................................................................................................ 6
2. USI.DLL – UNITECH SCANNER INTERFACE DLL........................................................... 7
2.1. Register the application to the USI DLL .................................................................................................................. 7
2.2. Unregister the application from the USI.DLL .........................................................................................................8
2.3. Enable / Disable Scanner............................................................................................................................................. 8
2.4. Reset Scanner................................................................................................................................................................ 8
2.5. Get error code ................................................................................................................................................................ 8
2.6. Returns the system error code.................................................................................................................................. 8
2.7. Get scan data.................................................................................................................................................................. 9
2.8. Get length of scanned data....................................................................................................................................... 10
2.9. Get Symbology name ................................................................................................................................................. 10
2.10. Clear scan data system buffer ............................................................................................................................. 11
2.11. Good read indicator................................................................................................................................................ 11
2.12. Wait for acknowledgement of the last sent command .................................................................................. 11
2.13. Save setting to profiles.......................................................................................................................................... 11
2.14. Save scanner setting into specified file............................................................................................................. 12
2.15. Change scanner setting from specified setting profile................................................................................. 12
2.16. Automatically enable scanner beam with pressing trigger key.................................................................. 12
2.17. Stop auto scanning function................................................................................................................................13
2.18. Check if auto scanning is enable ........................................................................................................................ 13
2.19. Check if Scan2Key.exe program is running or not......................................................................................... 13
2.20. Test if Scan2Key is enabled.................................................................................................................................. 13
2.21. Load/Unload Scan2Key.exe.................................................................................................................................. 13
2.22. Enable/Disable Scan2Key ..................................................................................................................................... 14
2.23. Send scanner command to decoding chip....................................................................................................... 14