Gets the horizontal resolution of this page in dots per inch.
A System.Double that specifies the horizontal resolution of this page in dots per inch.
If the document does not contain a resolution, such as a PDF or XPS document, then the DocumentReader will use the value set in DocumentReaderLoadOptions.Resolution in DpiX and DpiY.
For an example, refer to DocumentReaderPage.
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2