AudioHardwareGetProperty

objc2_core_audio

Function AudioHardwareGetProperty 

Source 
pub unsafe extern "C-unwind" fn AudioHardwareGetProperty(
    in_property_id: AudioHardwarePropertyID,
    io_property_data_size: NonNull<u32>,
    out_property_data: NonNull<c_void>,
) -> i32
👎Deprecated
Available on crate features AudioHardware and AudioHardwareDeprecated only.
Expand description

Queries an the AudioSystemObject to get the data of the given property and places it in the provided buffer.

Note that the same functionality is provided by the function AudioObjectGetPropertyData().

Parameter inPropertyID: The AudioHardwarePropertyID of the property to query.

Parameter ioPropertyDataSize: A UInt32 which on entry indicates the size of the buffer pointed to by outData and on exit indicates how much of the buffer was used.

Parameter outPropertyData: The buffer into which the AudioSystemObject will put the data for the given property.

Returns: An OSStatus indicating success or failure.

§Safety

  • io_property_data_size must be a valid pointer.
  • out_property_data must be a valid pointer.