accept addContext autoClosedOnTransactionChange buttonPosition canClose clicked closed emitDestructionSignal getDialogContent getDocumentId getStandardButtons helpRequested IButtonPosition isAllowedAlterDocument isAllowedAlterSelection isAllowedAlterView isAutoCloseOnTransactionChange isEscapeButtonEnabled ITaskDialog modifyStandardButtons needsFullSpace open reject setAutoCloseOnTransactionChange setButtonPosition setDocumentId setEscapeButtonEnabled ~ITaskDialog

isAllowedAlterSelection() virtual bool isAllowedAlterSelection ( void  ) const virtual 查询是否允许修改选择 查询是否允许修改选择 返回 布尔值，如果返回true，允许在打开时进行其他命令以修改选择； 如果为 false，则不允许在打开时进行其他命令以修改选择