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Foxit PDF SDK
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Public Member Functions | |
| IsEmpty () | |
| Check whether current object is empty or not. More... | |
| Redo () | |
| Redo this item. More... | |
| Undo () | |
| Undo this item. More... | |
This class represents be used to when execute undo/redo operation.
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Check whether current object is empty or not.
When the current object is empty, that means current object is useless.
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Redo this item.
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Undo this item.