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MediaPlayer.WritePreamble Method

Verifies that the MediaPlayer is not frozen and that it is being accessed from a valid threading context.

Namespace:  System.Windows.Media
Assembly:  PresentationCore (in PresentationCore.dll)

protected void WritePreamble()

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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