Function

CFMessagePortIsValid(_:)

Returns a Boolean value that indicates whether a CFMessagePort object is valid and able to send or receive messages.

Declaration

func CFMessagePortIsValid(_ ms: CFMessagePort!) -> Bool

Parameters

ms

The message port to examine.

Return Value

true if ms can be used for communication, otherwise false.

See Also

Examining a Message Port

func CFMessagePortGetInvalidationCallBack(CFMessagePort!) -> CFMessagePortInvalidationCallBack!

Returns the invalidation callback function for a CFMessagePort object.

func CFMessagePortGetName(CFMessagePort!) -> CFString!

Returns the name with which a CFMessagePort object is registered.

func CFMessagePortIsRemote(CFMessagePort!) -> Bool

Returns a Boolean value that indicates whether a CFMessagePort object represents a remote port.

Beta Software

This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.

Learn more about using Apple's beta software