Dispatcher::DisableProcessing Method ()
Disables processing of the Dispatcher queue.
Assembly: WindowsBase (in WindowsBase.dll)
Return Value
Type: System.Windows.Threading::DispatcherProcessingDisabledA structure used to re-enable dispatcher processing.
Disabling dispatcher processing is an advanced method that is intended to eliminate the chance of unrelated reentrancy.
The effects of disabling processing are as follows:
CLR locks will not pump messages internally.
DispatcherFrame objects are not allowed to be pushed.
Message processing is not permitted.
The DispatcherProcessingDisabled structure that DisableProcessing returns when it is called can be used to re-enable dispatcher processing. Calling Dispose on the DispatcherProcessingDisabled structure re-enables processing.
DisableProcessing can only be called on the thread the Dispatcher is associated with.
The following example shows how to disable dispatcher processing and re-enable dispatcher processing. DisableProcessing is called in a using statement. DisableProcessing returns a DispatcherProcessingDisabled structure that is used as the object to be disposed when the using block finishes. When Dispose is called on the DispatcherProcessingDisabled structure, dispatcher processing is re-enabled.
Available since 3.0