TFPObservedOperation¶
Operation which is reported to an observer.
Declaration¶
Source position: classesh.inc line 172
type
TFPObservedOperation = (ooChange,ooFree,ooAddItem,ooDeleteItem,ooCustom)Values¶
| Value | Description |
|---|---|
| ooChange | The observed object has changed. |
| ooFree | The observed object is being freed. |
| ooAddItem | An item is added to the observed object (generally a list). |
| ooDeleteItem | An item is deleted from the observed object (generally a list). |
| ooCustom | Custom event. |
Description¶
TFPObservedOperation enumerates the possible operations that can be reported to an observer. Which of these operations is reported depends on the implementation of the observed object.
See also¶
| Name | Description |
|---|---|
| IFPObserved | Interface implemented by an object that can be observed. |
| IFPObserver | Interface for an object to observe other objects. |