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API Printing - Orientation (Again)

Ok, after trashing my system and the computer, I'm ready to try again.

A while ago I asked for code to change the page orientation.  I was given some code here:
http://www.experts-exchange.com/Programming/Programming_Languages/Visual_Basic/Q_21113934.html

I tested the above code on an HP and it worked fine (so I awarded points).  After which I tried it on the actual printer I would use (a Zebra Label printer) and the code trashed everything so bad I had to remove and reinstall the printer in the Start/Settings/Printers list.

The Zebra Label printer does support landscape printing.  I can change the orientation in the printer's properties and print a test page and everything works well.  But I need to do this within code.

As before I can't using the Printers collection because I cannot gaurantee that the target machine(s) will have the Zebra printer in their collection.

Any ideas on some working code?
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Clif
Asked:
Clif
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Erick37Commented:
Can you make the printer object work reliably when the zebra printer is added (via Add Printer)?
If so, then is it possible for your users to be required to add the printer before using your application?

If not, have you had any success with using the printing API's - that is, do you only need help with the orientation part, or are you looking for a complete solution?

Finally, does your application open a print dialog, or is the printing taking place unattended or automatically?

Sorry for so many questions :]
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ClifAuthor Commented:
As part of the customer's requirements, I cannot force the users to add the printer.

I have had success using the API's for printing.  I can OpenPrinter() and ClosePrinter().  More importantly (for fonts) I can CreateDC(), send a font to the printer ant TextOut().  All the API's seem to work except for changing the orientation.

The application does not open a print dialog per se.  There is a printer selection screen that pops up, but I create that screen.  A print dialog screen would only have those printers which are in the collection or present a list of the hundreds of printers in the company's network.  The customer only wants the users presented with the list of printers specific to the job at hand, in this specific case, the label printers.
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ClifAuthor Commented:
I discovered how to add (and remove) a printer on the fly.
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