From 4 to 40 inches: Developing Windows Applications across Multiple Form Factors

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Windows applications can run on phones, tablets, PCs and beyond. Designing and building your application to take advantage of different screen sizes and resolutions is critical to making beautiful, engaging applications that your customers will love across all their devices.

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    The Discussion

    • User profile image
      Hidekazu Fukui

      When I see the design guide of Windows Store App, 320px or 20px gap are seen in that document. I think that fixed px idea doesn't go with your idea of effective resolution and so on.Do you have any plan to update the document? And don't you have any plan to improve desktop app?

    • User profile image

      Hi Hidekazu. the 320px / 20px gap mentioned in the Windows Design docs is "effective resolution" (aka "view resolution"). All the pixel values in XAML and HTML are in effective resolution :). Sorry, I don't have any expertise on desktop apps; Steve Wright had a talk on desktop apps and high-DPI support (

    • User profile image

      I did notice a change in scale factor, for 8.0 it was 1.5 (@2:53), for 8.1 it became 2.3 (@3:59)

      Edit: now watched it completely, and you mentioned the change with XAML apps where the scale factor for a Lumia 920 type of device changed by .8 due to effective resolution change, but that doesn't explain the scale factor change after Silverlight 8.0 => 8.1 conversion. A bug?


    • User profile image

      Thanks for the talk.  This has explained an easier approach to cross platform development.

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