The W3C Visibility API allows a resource to request that a user agent guarantee to display its viewport in an unmodified manner and report on its success or failure in meeting this guarantee. Additionally, the API document defines a mechanism for requesting visibility protection and receiving notifications if events are delivered to a resource that is not meeting its visibility contract.
The following is a list of SDKs from our SDK directory that matched your search term. Though your definition of an SDK may differ, in our world, we define SDKs as platform- specific tools for consuming existing APIs of the sort we list in our API directory. For example, the Ruby SDK for consuming the Twitter Ads API. If you think an SDK, API, or other asset is missing from our directory, be sure to check our guidelines for making contributions to ProgrammableWeb.