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Function Description:
Retrieves the scan data into the buffer. Returns the length of characters. It also returns the
barcode type if type is not NULL. Return 0 means that the buffer is too short to hold the
data.
USI_GetData should be called when SM_DATAREADY message is received. Or call
USI_ResetData to discard the data. Both of them will reset the data buffer so that next
scan data can come in.
If the data buffer is not empty and a new scan data occurs, it will be discarded and an
error message SM_ERROR with code of SERR_DATALOST will be sent.
Function call:
UINT USI_GetData(LPBYTE buffer, UINT len, UINT* type);
Parameter: (input)
len : UINT : Len specifies the maximum length of the buffer.
Parameter: (output)
buffer : LPBYTE : Data buffer for storing scanned data
type : UINT : barcode type which is defined on
USI.H. Please refer to below list
BCT_CODE_39 // Code 39
BCT_CODABAR // CodaBar
BCT_CODE_128 // Code 128
BCT_INTERLEAVED_2OF5 // Interleaves 2 of 5
BCT_CODE_93 // Code 93
BCT_UPC_A // UPC A
BCT_UPC_A_2SUPPS // UPC A with 2
Supps
BCT_UPC_A_5SUPPS // UPC A with 5
Supps
BCT_UPC_E0 // UPC E
BCT_UPC_E0_2SUPPS // UPC E with 2 Supps
BCT_UPC_E0_5SUPPS // UPC E with 5 Supps
BCT_EAN_8 // EAN 8
BCT_EAN_8_2SUPPS // EAN 8 with 2
Supps
BCT_EAN_8_5SUPPS // EAN 8 with 5
Supps
BCT_EAN_13 // EAN 13
BCT_EAN_13_2SUPPS // EAN 13 with 2 Supps
BCT_EAN_13_5SUPPS // EAN 13 with 5 Supps
BCT_MSI_PLESSEY // MSI Plessey
BCT_EAN_128 // EAN 128
BCT_UPC_E1 // UPC
E1
BCT_UPC_E1_2SUPPS // UPC E1 with 2 Supps
BCT_UPC_E1_5SUPPS // UPC E1 with 5 Supps
BCT_TRIOPTIC_CODE_39 // TRIOPTIC CODE 39
BCT_BOOKLAND_EAN // Bookland EAN
BCT_COUPON_CODE // Coupon Code
BCT_STANDARD_2OF5 // Standard 2 of 5
BCT_CODE_11_TELPEN // Code 11 Telpen
BCT_CODE_32 // Code 32
BCT_DELTA_CODE // Delta Code
BCT_LABEL_CODE // Label Code IV
& V
BCT_PLESSEY_CODE // Plessey Code
BCT_TOSHIBA_CODE // Toshiba Code
China Postal Code