CipherLab 9400 Series User Manual page 40

9400 .NET Programming
ReadBarcodeData
Purpose To read data from the barcode without intercepting WM_DECODEDATA.
Syntax int ReadBarcodeData (ref int codeType,
Parameters codeType
[in][out] Pointer to a variable that stores the barcode type.
outBuf
[in][out] Pointer to a buffer where the data is stored.
timeout
[in] The elapsing time before the read operation is stopped, in the range of
1~60 in units of second.
Example for C#
int codeType = 0;
string outBuf = string.Empty;
b1 = Reader.ReaderEngineAPI.ReadBarcodeData(ref codeType, ref outBuf,
3);
Example for VB Dim codeType As Integer
Dim outBuf As String = ""
Reader.ReaderEngineAPI.ReadBarcodeData(codeType, outBuf, 3)
Return Value If successful, it returns the number of bytes obtained (not including the
terminating null character).
Otherwise, it returns 0.
Remarks This function is provided for users who want to scan and retrieve data without
intercepting WM_DECODEDATA. For example, if users want to scan data by
clicking a GUI button, all they need to do is to invoke this function in the
clicking event handler function.
See Also DataOutputSettings
32
Guide
Call GetErrorCode() to find the error condition encountered:
0 E_READER_UNKNOWN_ERROR
-101 E_READER_NOT_INIT
ref string outBuf,
int timeout);