Make your Silverlight background transparent

10 Dec

It’s not always that you want your Silverlight application to have a background color. Instead you can use the color from the hosting HTML page – and it’s easy!

In your HTML that hosts the Silverlight object add these parameters and you’re done:

<param name="background" value="transparent" /> 
<param name="windowless" value="true" />

by xamlgeek

2 Responses to “Make your Silverlight background transparent”

  1. Thomas December 10, 2009 at 19:29 #

    These settings will hurt performance.

    Windowless mode is computationally expensive, especially in combination with a transparent plug-in background.

    See the Silverlight blog:
    http://blogs.msdn.com/silverlight_sdk/archive/2008/11/12/limitations-of-windowless-mode-for-silverlight.aspx

    • Thomas Martinsen December 10, 2009 at 21:04 #

      I agree – sometimes it’s just necessary though and depending on the project it can be acceptable.

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