Metrologic Optimus S Programming Manual page 63

Decode
Purpose To perform barcode decoding.
Syntax int Decode (void);
Example while (1) { if (Decode()) break;}
Description Once the scanner port is initialized by calling InitScanner1(), call this routine to
perform barcode decoding.
Return If successful, it returns an integer whose value equals to the string length of the
decoded data.
Otherwise, it returns 0.
HaltScanner1, InitScanner1
See Also
HaltScanner1
Purpose To stop the scanner port from operating.
Syntax void HaltScanner1 (void);
Example HaltScanner1();
Once the scanner port is stopped from operating by this routine, it cannot be
Description
restarted unless it is initialized again by calling InitScanner1().
It is recommended that the scanner port should be stopped if the barcode
decoding is not required for a long period of time.
Return None
See Also Decode, InitScanner1
InitScanner1
Purpose To initialize the scanner port.
Syntax void InitScanner1 (void);
Example InitScanner1();
while (1) {if (Decode()) break;}
Chapter 3 Terminal Specific Function Library
This routine should be called constantly in user's program loops when
barcode decoding is required.
If the barcode decoding is not required for a long period of time, it is
recommended that the scanner port should be stopped by calling
HaltScanner1().
If the Decode function decodes successfully, the decoded data will be
placed in the string variable CodeBuf[] with a string terminating character
appended. And integer variable CodeLen, as well as the character variable
CodeType will reflect the length and code type of the decoded data
respectively.
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