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macOS module

CFRunLoopObserverIsValid

procedureforeignSource
CFRunLoopObserverIsValid :: (observer: CFRunLoopObserverRef) -> Boolean #foreign

Parameters

observer: CFRunLoopObserverRef

Returns

Boolean

See also

CFRunLoopObserverGetTypeIDCFRunLoopObserverInvalidateCFRunLoopPerformBlockCFRunLoopRemoveObserver