Assembly: WindowsBase (in WindowsBase.dll)
Classes that derive from Freezable should call the method before they attempt to access any members that are not dependency properties. The WritePreamble method should be called before any such members are written to.
This method effectively does nothing more than call VerifyAccess.
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.