Mount.guessContentType
void guessContentType(bool forceRescan, gio.cancellable.Cancellable cancellable = null, gio.types.AsyncReadyCallback callback = null)Tries to guess the type of content stored on mount. Returns one or more textual identifiers of well-known content types (typically prefixed with "x-content/"), e.g. x-content/image-dcf for camera memory cards. See the
shared-mime-infospecification for more on x-content types.
This is an asynchronous operation (see [gio.mount.Mount.guessContentTypeSync] for the synchronous version), and is finished by calling [gio.mount.Mount.guessContentTypeFinish] with the mount and #GAsyncResult data returned in the callback.
Parameters
forceRescan | Whether to force a rescan of the content. Otherwise a cached result will be used if available |
cancellable | optional #GCancellable object, null to ignore |
callback | a #GAsyncReadyCallback |