Gets the value of a specified audio session property.
- iOS 2.0–7.0Deprecated
The identifier for the audio session property that you want to get the value of.
On input, the memory size for the
outparameter. On output, the actual size of the property value.
On output, the value of the specified audio session property.
A result code. See Result Codes.
Audio session properties are listed and described in Audio Session Property Identifiers.
Some Core Audio property values are C types and others are Core Foundation objects.
If you call this function to retrieve a value that is a Core Foundation object, then this function—despite the use of “Get” in its name—duplicates the object. You are responsible for releasing the object, as described in The Create Rule in Memory Management Programming Guide for Core Foundation.