clear_data_code_2d_modelT_clear_data_code_2d_modelClearDataCode2dModelClearDataCode2dModelclear_data_code_2d_model (算子)

名称

clear_data_code_2d_modelT_clear_data_code_2d_modelClearDataCode2dModelClearDataCode2dModelclear_data_code_2d_model — 删除二维数据码模型并释放分配的内存。

签名

描述

算子 clear_data_code_2d_modelclear_data_code_2d_modelClearDataCode2dModelClearDataCode2dModelClearDataCode2dModelclear_data_code_2d_model deletes a 2D data code model that was created by create_data_code_2d_modelcreate_data_code_2d_modelCreateDataCode2dModelCreateDataCode2dModelCreateDataCode2dModelcreate_data_code_2d_model or read_data_code_2d_modelread_data_code_2d_modelReadDataCode2dModelReadDataCode2dModelReadDataCode2dModelread_data_code_2d_model。All memory used by the model is freed. The handle of the model is passed in DataCodeHandleDataCodeHandleDataCodeHandleDataCodeHandledataCodeHandledata_code_handle. After the operator call it is invalid.

For an explanation of the concept of the 2D data code reader see the introduction of chapter Identification / Data Code。

执行信息

• 多线程类型：可重入（与非独占算子并行运行）。
• 多线程作用域：全局（可从任何线程调用）。
• 未采用并行化处理。

此算子修改后续输入参数的状态：

• DataCodeHandleDataCodeHandleDataCodeHandleDataCodeHandledataCodeHandledata_code_handle

在执行此算子时，若该参数值需在多个线程间使用，则必须对其访问进行同步。

参数

结果

算子 clear_data_code_2d_modelclear_data_code_2d_modelClearDataCode2dModelClearDataCode2dModelClearDataCode2dModelclear_data_code_2d_model 返回值 2 ( H_MSG_TRUE) if a valid handle was passed and the referred 2D data code model can be freed correctly.否则，将抛出异常。

另见

create_data_code_2d_modelcreate_data_code_2d_modelCreateDataCode2dModelCreateDataCode2dModelCreateDataCode2dModelcreate_data_code_2d_model, read_data_code_2d_modelread_data_code_2d_modelReadDataCode2dModelReadDataCode2dModelReadDataCode2dModelread_data_code_2d_model

模块

数据码