HwndHost.Dispose Method (Boolean)
Immediately frees any system resources that the object might hold.
Assembly: PresentationFramework (in PresentationFramework.dll)
This type or member is not available in the Internet security zone.
Derived classes can override this method if they need to do additional cleanup. However, they should also call the base implementation to ensure that all resources are freed. The base implementation does fairly substantial work to free resources that are known to the base class.
If a window is being hosted, it will be destroyed.
The calling thread must be the same as the dispatcher.