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Transparent Windows in WPF

Introduction WPF can obviously render transparent elements within its own window, but it also supports rendering the entire window with per-pixel transparency. This feature comes with a few issues, which I'll discuss in this post. Layered Windows Windows

Implementing A Custom BitmapSource

  Windows Imaging Component WPF uses the Windows Imaging Component (WIC) library to process bitmap data. WIC presents a data flow for bitmap processing that is both simple and powerful. The basic interface for bitmap processing in WIC is IWICBitmapSource.

Blurry Bitmaps

Background: resolution independence WPF was designed from the start to be resolution independent. So instead of designing your UI in terms of pixels, you are encouraged to use a physical measuring unit (like inches). When you specify coordinates in WPF,

Multithreaded UI: HostVisual

Background: The WPF Threading Model In general, objects in WPF can only be accessed from the thread that created them. Sometimes this restriction is confused with the UI thread, but this is not true, and it is perfectly fine for objects to live on other