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4. Scanner3.DLL – Backward compatible API for PT930/PT930S’s Scanner3.dll
“Scanner3.lib” and “scanner3.h” are necessary files for VC programming to compile application. You can
find it from standard LIB and INCLUDE folder after installed SDK.
4.1. Enable
Decoder
Function Description:
This function will open COM2 port, create a thread to get any barcode input from
Decoder Chip, and then store input data in the system buffer. Application can use
function 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 OK
4.2. Disable
Decoder
Function Description:
This function will close COM2 port and then remove thread which is created by
PT_EnableBarcode()
Function call:
VOID PT_DisableBarcode( VOID );
4.3. Check barcode input
Function Description:
This function is used to check whether there is available barcode data on system
buffer 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.
