AsyncReadConstants

Bit flags for the AsyncReadOptions argument of UserControl.AsyncRead, controlling caching, synchronisation, and offline behaviour for an asynchronous download.

Constant	Value	Description
vbAsyncReadSynchronousDownload	1	The call does not return until the download has finished.
vbAsyncReadOfflineOperation	8	The runtime should not contact the network if the resource is not already cached.
vbAsyncReadForceUpdate	&H10	The cached copy is bypassed and the resource is fetched fresh.
vbAsyncReadResynchronize	&H200	The cached copy is used only after revalidating it against the server.
vbAsyncReadGetFromCacheIfNetFail	&H80000	If the network request fails, fall back to the cached copy if any.