title: Image Property Tag Constant
body: <p>I'd like to use the <a href="http://msdn.microsoft.com/en-us/library/ms534413(VS.85).aspx" rel="nofollow noreferrer">image property tag constants</a> defined in GDI+ from .NET.</p>
  
  <p>I wonder whether these constant values (<strong>e.g. PropertyTagGpsVer constant</strong>) are exposed in any of the Base Class Library?</p>
  
  <p>I have tried looking around System.Drawing.Imaging namespace to no avail.</p>