read_encrypted_itemT_read_encrypted_itemReadEncryptedItemReadEncryptedItemread_encrypted_item (算子名称)
名称
read_encrypted_itemT_read_encrypted_itemReadEncryptedItemReadEncryptedItemread_encrypted_item — Read an encrypted item from a file.
参数签名
def read_encrypted_item(file_name: str) -> HHandle
描述
The operator 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 the operator write_encrypted_itemwrite_encrypted_itemWriteEncryptedItemWriteEncryptedItemWriteEncryptedItemwrite_encrypted_item.
The default HALCON file extension for encrypted item is '.henc'.
运行信息
- Multithreading type: reentrant (runs in parallel with non-exclusive operators).
- Multithreading scope: global (may be called from any thread).
- Processed without parallelization.
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
The operator read_encrypted_itemread_encrypted_itemReadEncryptedItemReadEncryptedItemReadEncryptedItemread_encrypted_item returns the value 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