Check if the object is disposed or not.
@returns true if the object is dispose, false otherwise.
Disposable pattern, this method must be overloaded by derived types in order to clean up hardware related resources.
@returns false if the object is already dispose, true otherwise. Your implementation must call super.dispose() and check for a false return and return immediately if it's the case.
Check if a given set of properties are dirty or not.
@return true if at least one property is dirty, false if none of them are.
|flags||number||a ORed combination of Prim2DPropInfo.flagId values|