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propertyDataSize(address:qualifier:)

Queries an AudioHardwareObject to find the size of the data for the given property.

Declaration

func propertyDataSize(address: AudioObjectPropertyAddress, qualifier: Data? = nil) throws -> Int

Parameters

  • address:

    An AudioObjectPropertyAddress indicating which property is being queried.

  • qualifier:

    A buffer of data to be used in determining the data of the property being queried. Note that not all properties require qualification, in which case this value will be nil.

Return Value

An Int indicating how many bytes the data for the given property occupies.