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Operation which is reported to an observer
Source position: classesh.inc line 161
type TFPObservedOperation = ( |
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ooChange, |
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The observed object has changed. |
ooFree, |
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The observed object is being freed. |
ooAddItem, |
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An item is added to the observed object (generally a list). |
ooDeleteItem, |
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An item is deleted from the observed object (generally a list). |
ooCustom |
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Custom event. |
); |
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.
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Interface implemented by an object that can be observed. |
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Interface for an object to observe other objects. |