web page print button and settings

I'm wondering if anyone has had any experience modifying print settings via a web page. My overall goal would be to setup a print button on a web page

<a href="javascript:window.print()">Print This Page</a> 

And at the same time modify the users print settings to print the page from a landscape view. Input on if this is even possibly, or other suggestions would be appreciated. Modifying the page layout isn't really an option. I thought about using a separate style sheet for the printing page but that doesn't help with what I'm actually p开发者_高级运维rinting.

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For security reasons your JavaScript would not have have access to the print setup page.