public static void AddObserver(this NSObject obj, string key, Action action)
{
obj.AddObserver (helper, (NSString)key, NSKeyValueObservingOptions.New, IntPtr.Zero);
helper.Add (obj,key, action);
}
public static void AddObserver(this NSObject self, NSObject observer, string keypath)
{
self.AddObserver (observer, (NSString) keypath, NSKeyValueObservingOptions.New, IntPtr.Zero);
}
public static void RegisterVtkErrorEvents(this vtkObject obj)
{
obj.AddObserver((uint) EventIds.ErrorEvent, VtkEventCallback);
obj.AddObserver((uint) EventIds.WarningEvent, VtkEventCallback);
}
