Indicates that the default value for the attributed field or parameter is an instance of System.Runtime.InteropServices.DispatchWrapper, where the System.Runtime.InteropServices.DispatchWrapper.WrappedObject is null.
See Also: IDispatchConstantAttribute Members
You can apply this attribute to fields or parameters.
The type library importer uses this attribute to distinguish a default value of type VT_DISPATCH from null.
For more information about constant attributes, see the System.Runtime.CompilerServices.CustomConstantAttribute class.
The classes in System.Runtime.CompilerServices are for compiler writers use only.