How to get readable text on glass (wpf)

Question

Here are two screenshots:

Full screen window on a white background:
http://trotsenko.com.ua/stackoverflow/2010_01_13%20Glass%20Window%20over%20a%20white%20background.png

The same window with full glass in the background:
http://trotsenko.com.ua/stackoverflow/2010_01_13%20The%20same%20Glass%20Window%20over%20a%20Black%20background.png

Question : in WPF , how can I use TextBlockit so that it can be read on glass?

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I already tried <DropShadowEffect ShadowDepth="0" BlurRadius="20" Color="White"/>without acceptable success. (Maybe I did something wrong?)

I failed with <OuterGlowBitmapEffect/>(I think because the bitmap effects are now outdated. Did I do something wrong?)

Answer 1

, DrawThemeTextEx() dwmapi.dll, , WPF. , , WinForms.