title: Set page size using WIA (with scanner)
body: <p>I'm using WIA to acquire images from a scanner with C#. I can scan the papers, but I can't set up the page size correctly, it always defaults to A4 and I need to use Letter or Legal sometimes.</p>
  
  <p>I tried with the WIA_DPS_PAGE_SIZE property, but when I try to set a value, I always get an error, that the value is out of the interval (tried a lot of possible values).</p>
  
  <p>I wan't to be able to use WIA_DPS_PAGE_SIZE = WIA_PAGE_AUTO (for automatic page size), but I can't find anything on the web related to this.</p>
  
  <p>Does anyone know a solution? thanks!</p>