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Freezable.ReadPreamble Method

  • Reference

Definition

Namespace:
System.Windows
Assembly:
WindowsBase.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Ensures that the Freezable is being accessed from a valid thread. Inheritors of Freezable must call this method at the beginning of any API that reads data members that are not dependency properties.

C# 
protected void ReadPreamble();

Notes to Inheritors

Classes that derive from Freezable should call the ReadPreamble() 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().

Applies to

Product Versions
.NET Framework 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
Windows Desktop 3.0, 3.1, 5, 6, 7, 8, 9, 10

See also