Paxar Gold 6037EX manual N G e t S c a n n e d D a t a

s c n G e t S c a n n e d D a t a

Description

Retrieves the scanner buffer’s contents as a null-terminated string, placing them in a programmer-defined application buffer. If the scanner buffer is empty, this function does not activate the trigger to start a scan. This function works with each scanner.

If there is any chance the scanned bar code

contains a binary zero, do not use this function. Instead, use scnGetch and scnScannerHit in a loop until the scan is complete.

Use scnGets to retrieve the scanner buffer’s contents and activate the scanner when the buffer is empty.

Syntax

short far scnGetScannedData(char far *lpszData);

Parameters

lpszData A pointer to a programmer-defined application buffer where the function places the scanner buffer’s contents. This buffer must be one byte longer than the largest string that you may scan.

Return Values

0	No data available.
-1	Checksum, time-out, or communications error.
-2	Decoding fault. The scanner scanned the bar code, but
	the printer could not decode it.
-9	Scanner is disabled.

Function Reference 4-63