Hi Chris,
You connect to the printer with a regular
cPrinterName = GETPRINTER()
SET PRINTER TO NAME (cPrinterName)
Then you open the printer
SET PRINTER ON
And all commandlines starting with ??? get sent directly, without conversion of
the Windows drivers.
thus:
#DEFINE CR CHR(13)+CHR(10)
??? "^XA" + CR
??? "^CF0,60" + CR
??? "^FO50,50^GB100,100,100^FS" + CR
SET PRINTER OFF
SET PRINTER TO
One caveat: The ??? command also translates embedded strings between curly
braces:
??? "This is a printer control string: {27}Q{100} to set the right margin"
If you need to print that left curly bracket in real, then you need to do a
"{{}"
wOOdy
-----Original Message-----
From: ProFox <[email protected]> On Behalf Of Chris Davis
Sent: Monday, November 13, 2023 12:27 PM
To: ProFox Email List <[email protected]>
Subject: ZPL
Hi All
Would anyone have any suggestions of how best to approach sending ZPL commands
to a compatible printer?
If the printer is on the network I can get this to work using ChilKat such as
https://www.example-code.com/foxpro/socket_connect.asp
But I have also found that you can get ZPL to a printer that is connected via
USB or network using the Generic / Text Only Driver ... this works with a
simple example from
https://labelary.com/viewer.html
but if the commands become more extensive (maybe because an image has been
included) then this method goes wrong I think because the driver is doing
something relating to page size? But not sure.
If possible I would like a native VFP method of connecting to either a USB or
Network connected ZPL printer and be able to send whatever I like ... thoughts?
TIA
Chris Davis
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