I want to make the iPhone vibrate and I found the code
AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);
but Xcode 4.3.2 reports an error: undeclared identifier kSystemSoundID_Vibrate
What is the problem?
Try:
AudioServicesPlayAlertSound(kSystemSoundID_Vibrate);
EDIT . Also make sure you import AudioToolbox.framework
AudioToolbox.framework
#import <AudioToolbox/AudioToolbox.h>