XPS Viewer and Printing to MS XPS Document Writer

Discussion in 'Windows Vista General Discussion' started by Don Andre, Apr 3, 2007.

  1. Don Andre

    Don Andre Guest

    Hello all,

    If I Open an XPS file in XPS viewer in Vista and Print to XPS file using
    Microsoft XPS Document Writer, is that a direct XPS Print path?

    Does it involve intermediate conversion to GDI+ and then to XPS?

    If I Print to Global Graphics XPS Driver from XPS viewer, does it send the
    XPS directly as Spool or there is any intermediate conversion to GDI+ and
    then to XPS.

    Thanks in advance for any pointers.



    Don.
     
    Don Andre, Apr 3, 2007
    #1
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  2. According to what I've been able to discover, the XPS Document Viewer is a
    WPF application (Windows Presentation Foundation see
    http://msdn2.microsoft.com/en-us/library/ms754130.aspx) and thus uses the
    MXDC (Microsoft XPS Document Converter) using bypass for sending output to
    the XPS Document Writer - there will not be GDI conversion.

    I'm curious, why would you open an XPS Document in the XPS Document Viewer,
    then "print" using the XPS Document Writer? You're going to get another XPS
    Document, which "should be" functionally equivalent to the original, if not
    identical.

    Not sure what you mean by the "Global Graphics XPS Driver", but the XPS
    Document Viewer will use the WPF Printing API to send output to a driver
    that is an XPS driver - there won't be intermediate GDI conversion.

    I visited the Global Graphics web site (e.g.
    http://www.globalgraphics.com/xps/implementation.html), but could find
    specifically a "Global Graphics XPS Driver". Based on the information at
    this page, if Global Graphics says their "driver" is an XPS driver, then
    presumably there will not be GDI conversion IF the application using it is a
    WPF application. Note however, that if the target printer is not an "XPS
    printer", the driver will have to convert the XPS document to the language
    the printer knows about (e.g. HP PCL or Postscript, IBM's AFP) - this
    appears to be at least one of Global Graphics specialties.

    If you use an application that uses GDI (i.e. an application that has not
    been built or modified to use WPF) to send output to any XPS driver, there
    will be GDI to XPS conversion. Most existing applications use GDI. WPF
    (Windows Presentation Foundation see
    http://msdn2.microsoft.com/en-us/library/ms754130.aspx) is a new set of APIs
    (introduced with .Net Framework Version 3) that applications can use for
    display as well as printing, but they have to written (or modified) to use
    that API set instead of the GDI API set.
     
    Bruce Sanderson, Apr 7, 2007
    #2
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