AudioSessionGetProperty

objc2_audio_toolbox

Function AudioSessionGetProperty 

Source 
pub unsafe extern "C-unwind" fn AudioSessionGetProperty(
    in_id: AudioSessionPropertyID,
    io_data_size: *mut u32,
    out_data: *mut c_void,
) -> i32
👎Deprecated: no longer supported
Available on crate feature AudioSession only.
Expand description

Get the value of a property.

This function can be called to get the value for a property of the AudioSession. Valid properties are listed in an enum above.

Parameter inID: The AudioSessionPropertyID for which we want to get the value.

Parameter ioDataSize: The size of the data payload. On entry it should contain the size of the memory pointed to by outData. On exit it will contain the actual size of the data.

Parameter outData: The data for the property will be copied here.

Returns: kAudioSessionNoError if the operation was successful. If the property is a write-only property or only available by way of property listeners, kAudioSessionUnsupportedPropertyError will be returned. Other error codes listed under AudioSession Error Constants also apply to this function.

§Safety

  • io_data_size must be a valid pointer.
  • out_data must be a valid pointer.