IOHIDUserDeviceSetCancelHandler

objc2_io_kit

Function IOHIDUserDeviceSetCancelHandler 

Source 
pub unsafe extern "C-unwind" fn IOHIDUserDeviceSetCancelHandler(
    device: &IOHIDUserDevice,
    handler: dispatch_block_t,
)
👎Deprecated: renamed to IOHIDUserDevice::set_cancel_handler
Available on crate features dispatch2 and hidsystem only.