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POSending printer specific commands
 

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    <p>I have an issue here, which I am trying to encode magnetic stripe data to an Fargo DTC400 printer, in the specifications it says I need to send the following string commands from example notepad, wordpad etc etc : </p> <pre><code>~1%TRACK NUMBER ONE? ~2;123456789? ~3;123456789? </code></pre> <p>this example encodes the string in track one, and the numbers 123456789 in both track 2 and 3.. this works from Notepad.exe.</p> <p><strong>EDIT:</strong> Current delphi code I use works on another printer: </p> <pre><code>procedure SendQuote(MyCommand : AnsiString); var PTBlock : TPassThrough; begin PTBlock.nLen := Length(MyCommand); StrPCopy(@PTBlock.SData, MyCommand); Escape(printer.handle, PASSTHROUGH, 0, @PTBlock, nil); end; </code></pre> <p>when I am trying to encode this string from my own application I get trouble, it seems the printer is totally ignoring my commands, when I choose print to file, I can read the binary data and see my string in the printed file, when I try to print to file from example notepad.exe I get just rubish binary data and cannot find my strings at all...</p> <p>so I wonder what does notepad do to send this string command which I dont ?</p> <p>hope someone can shed light on this because I have been eager to implement fargo support in my application for a longer period of time . </p> <p>thanks</p> <p><strong>Update.</strong> the following code is ancient but it does the job, however is there another way I can use this with the Passthrough code above?</p> <pre><code>var POutput: TextFile; k: Integer; begin with TPrintDialog.Create(self) do try if Execute then begin AssignPrn(POutput); Rewrite(POutput); Writeln(POutput,'~1%TESTENCODER?'); Writeln(POutput,'~2;123456789?'); Writeln(POutput,'~2;987654321?'); CloseFile(POutput); end; finally free; end end; </code></pre>
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    1. COThis is a programming questions website. Please tell me what you're doing in your Delphi code. How are you printing? Don't make us guess what you're doing wrong. Show us how you print. I would have tested writing to a raw printer port like this. See this link for Raw Printing info. http://www.efg2.com/Lab/Library/Delphi/Printing/index.html
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    2. COyeah I forgot to paste the code I use, sorry :) I updated it now
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    3. COWhat's wrong with using the `TextFile` output ? Seems like a clear and simple solution.
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