本库只保留了 DDHotKey 的基本功能：

• 绑定全局快捷键
• 取消绑定全局快捷键

摘录一段注册全局快捷键的代码（使用了 Carbon）：

@implementation HotKey

OSStatus HotKeyHandler(EventHandlerCallRef nextHandler, EventRef theEvent, void *userData) { AppDelegate *delegate = [[NSApplication sharedApplication]delegate]; [delegate displayMenu]; return noErr; }

• (void) register { EventHotKeyRef gMyHotKeyRef; EventHotKeyID gMyHotKeyID; EventTypeSpec eventType; eventType.eventClass = kEventClassKeyboard; eventType.eventKind = kEventHotKeyPressed;

  InstallApplicationEventHandler(&HotKeyHandler, 1, &eventType, NULL, NULL);

  gMyHotKeyID.signature='htk1'; gMyHotKeyID.id=1;

  RegisterEventHotKey(kVK_ANSI_M, cmdKey+shiftKey, gMyHotKeyID, GetApplicationEventTarget(), 0, &gMyHotKeyRef); }

@end

DDHotKey 的GitHub地址：https://github.com/davedelong/DDHotKey