THPDFOCRTextLayerStatus Type
THPDFOCRTextLayerStatus = (
otlsNotRun,
otlsSucceeded,
otlsInvalidOptions,
otlsEngineError,
otlsBudgetExceeded,
otlsCancelled,
otlsCommitError
);otlsSucceeded 涵盖已提交的图层和没有接受单词的有效运行
所有失败值返回 False 并保留操作前的已加载对象图