Cancels the resolution of a host.
- iOS 2.0+
- macOS 10.3+
- Mac Catalyst 13.0+Beta
- tvOS 9.0+
The host for which a resolution is to be cancelled. This value must not be
A value of type
CFHostInfoType specifying the type of resolution that is to be cancelled. See
CFHostInfoType for possible values.
This function cancels the asynchronous or synchronous resolution specified by
info for the host specified by
This function is thread safe.
An opaque reference representing an CFHost object.
Values indicating the type of data that is to be resolved or the type of data that was resolved.
Gets the Core Foundation type identifier for the CFHost opaque type.
Associates a client context and a callback function with a CFHost object or disassociates a client context and callback function that were previously set.
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