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Weird Printer Command Syntax Error
Message
From
26/08/2013 13:09:36
 
General information
Forum:
Visual FoxPro
Category:
Coding, syntax & commands
Environment versions
Visual FoxPro:
VFP 9 SP1
OS:
Windows XP SP3
Network:
Windows 2003 Server
Database:
Visual FoxPro
Application:
Desktop
Miscellaneous
Thread ID:
01581421
Message ID:
01581442
Views:
39
>Hi Gang!
>
>My fellow worker has this problem.....
>
>They have code which creates a string of data to send to a LaserPrinter using PCl commands.
>
>
>??? ESC + lcStringToPrint
>
>
>lcStringtoPrint is a string of data which has in it the NDC of a drug, the Rx number and the Quantity. The values are converted to ASCII codes to send to printer, so they won't be simple strings of just numbers.
>
>If the Quantity is 50, it prints the barcode.
>
>When it is 60, it throws up a Syntax Error
>
>Normally, about 98% of the time, the barcode prints just fine. But about 2 % of the time, given certain combonations of NDC, Rx and quantity, the barcdode will give a syntax error.
>
>
>Here is a sample of the string in the VFP Debugger....
>
>bad - quantiy of 60
>“Š 6s M |$z \{‹”
>
>good - quantity of 50
>"Š 6s M Nsb >]‹"
>
>Anything look amiss? Any thoughts ??
>
>
>Thanks!


The moment I saw the left brace - I remembered
Gregory
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