Function MIDIDeviceAddEntity 

pub unsafe extern "C-unwind" fn MIDIDeviceAddEntity(
    device: MIDIDeviceRef,
    name: &CFString,
    embedded: bool,
    num_source_endpoints: c_ulong,
    num_destination_endpoints: c_ulong,
    new_entity: NonNull<MIDIEntityRef>,
) -> i32

👎Deprecated

Available on crate features MIDIServices and MIDISetup and objc2-core-foundation only.

Drivers call this function to specify one of the entities that comprise a device.

Non-drivers may call this function as of CoreMIDI 1.1 to add entities to external devices.

Parameter device: The device to which an entity is to be added.

Parameter name: The name of the new entity.

Parameter embedded: True if this entity is inside the device, false if the entity simply consists of external connectors to which other devices can be attached.

Parameter numSourceEndpoints: The number of source endpoints the entity has.

Parameter numDestinationEndpoints: The number of destination endpoints the entity has.

Parameter newEntity: On successful return, points to the newly-created entity.

Returns: An OSStatus result code.

Safety

new_entity must be a valid pointer.