@@ -135,10 +135,11 @@
 #ifndef OF_WINDOWS
 	void (*_Nullable _SIGHUPHandler)(id, SEL);
 	void (*_Nullable _SIGUSR1Handler)(id, SEL);
 	void (*_Nullable _SIGUSR2Handler)(id, SEL);
 #endif
+	OFSandbox *_Nullable _activeSandbox;
 }
 
 #ifdef OF_HAVE_CLASS_PROPERTIES
 @property (class, readonly, nullable, nonatomic)
     OFApplication *sharedApplication;
@@ -169,10 +170,15 @@
  * @brief The delegate of the application.
  */
 @property OF_NULLABLE_PROPERTY (assign, nonatomic)
     id <OFApplicationDelegate> delegate;
 
+/*!
+ * @brief The sandbox currently active for this application.
+ */
+@property OF_NULLABLE_PROPERTY (readonly, nonatomic) OFSandbox *activeSandbox;
+
 /*!
  * @brief Returns the only OFApplication instance in the application.
  *
  * @return The only OFApplication instance in the application
  */