Unitech PA500 Programming Manual

Also see for PA500: User manual Specifications Operation manual Quick reference guide User guide

Unitech PA500 Programming Manual Manual pdf 21 page image

-4. Scanner3.DLL – Backward compatible API for PT930/PT930S’s Scanner3.dllNote : For PA500, it need to dynamically load DLL for using Unitech built-in DLL (Unitech will notprovide *.H and *.LIB for compiler), please refer to Chapter 7 for programming guide.4.1. Enable DecoderFunction Description: This function will open COM2 port, create a thread to get any barcode input fromDecoder Chip, and then store input data in the system buffer. Application can usefunction call PT_GetBarcode() to get input data from the system buffer.Function call:INT PT_EnableBarcode(VOID);Return code:=1 Create new thread fail=2 Cannot re-enable=3 Cannot open COM2=4 Upload parameter from Hamster fail=0 OK4.2. Disable DecoderFunction Description:This function will close COM2 port and then remove thread which is created byPT_EnableBarcode()Function call:VOID PT_DisableBarcode( VOID );4.3. Check barcode inputFunction Description:This function is used to check whether there is available barcode data on systembuffer which is successfully decoded by decoder chip.Function call:BOOL PT_CheckBarcode( VOID );Return code:TRUE = There is input data on system buffer.FALSE = There is no data on system buffer.