read_encrypted_itemT_read_encrypted_itemReadEncryptedItemReadEncryptedItemread_encrypted_item (算子名称)
名称
read_encrypted_itemT_read_encrypted_itemReadEncryptedItemReadEncryptedItemread_encrypted_item — 从文件中读取一个加密项。
参数签名
def read_encrypted_item(file_name: str) -> HHandle
描述
该算子 read_encrypted_itemread_encrypted_itemReadEncryptedItemReadEncryptedItemReadEncryptedItemread_encrypted_item reads the file FileNameFileNameFileNameFileNamefileNamefile_name and
creates a new encrypted item in EncryptedItemHandleEncryptedItemHandleEncryptedItemHandleEncryptedItemHandleencryptedItemHandleencrypted_item_handle that is an
identical copy of the saved item. The file FileNameFileNameFileNameFileNamefileNamefile_name must have been
created by 该算子 write_encrypted_itemwrite_encrypted_itemWriteEncryptedItemWriteEncryptedItemWriteEncryptedItemwrite_encrypted_item.
The default HALCON file extension for encrypted item is '.henc'.
运行信息
- 多线程类型:可重入(与非独占操作符并行运行)。
- 多线程作用域:全局(可以从任何线程调用)。
- 未经并行化处理。
This operator returns a handle. Note that the state of an instance of this handle type may be changed by specific operators even though the handle is used as an input parameter by those operators.
参数表
FileNameFileNameFileNameFileNamefileNamefile_name (input_control) filename.read → HTuplestrHTupleHtuple (string) (string) (HString) (char*)
Name of the file.
Default:
'encrypted_item.henc'
"encrypted_item.henc"
"encrypted_item.henc"
"encrypted_item.henc"
"encrypted_item.henc"
"encrypted_item.henc"
File extension:
.bin
EncryptedItemHandleEncryptedItemHandleEncryptedItemHandleEncryptedItemHandleencryptedItemHandleencrypted_item_handle (output_control) encrypted_item → HEncryptedItem, HTupleHHandleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)
Handle of the encrypted item.
结果
该算子 read_encrypted_itemread_encrypted_itemReadEncryptedItemReadEncryptedItemReadEncryptedItemread_encrypted_item 返回值 2 (
H_MSG_TRUE)
if the
named file was found and correctly read. Otherwise, an exception is raised.
可能的后置算子
decrypt_serialized_itemdecrypt_serialized_itemDecryptSerializedItemDecryptSerializedItemDecryptSerializedItemdecrypt_serialized_item
参考其它
write_encrypted_itemwrite_encrypted_itemWriteEncryptedItemWriteEncryptedItemWriteEncryptedItemwrite_encrypted_item,
encrypt_serialized_itemencrypt_serialized_itemEncryptSerializedItemEncryptSerializedItemEncryptSerializedItemencrypt_serialized_item
模块
Foundation