Function

AudioServicesGetPropertyInfo(_:_:_:_:_:)

Gets information about a System Sound Services property.

Declaration

func AudioServicesGetPropertyInfo(_ inPropertyID: AudioServicesPropertyID, _ inSpecifierSize: UInt32, _ inSpecifier: UnsafeRawPointer?, _ outPropertyDataSize: UnsafeMutablePointer<UInt32>?, _ outWritable: UnsafeMutablePointer<DarwinBoolean>?) -> OSStatus

Parameters

inPropertyID

The property you want information about.

inSpecifierSize

The size of the buffer pointed to by the inSpecifier parameter. Pass 0 if no specifier buffer is required.

inSpecifier

A pointer to a specifier buffer, if such a buffer is required by the property about which you want information. Pass NULL if no specifier is required.

outPropertyDataSize

On output, the size, in bytes, of the property value. To get the property value, you need a buffer of at least this size.

outWritable

On output, true if the property is writable, or false if the property is read only.

Return Value

A result code.

Discussion

System Sound Services properties are listed and described in System Sound Services Property Identifiers.

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