read_messageT_read_messageReadMessageReadMessageread_message (算子)
名称
read_messageT_read_messageReadMessageReadMessageread_message — 从文件中读取消息。
签名
void ReadMessage(const HTuple& FileName, const HTuple& GenParamName, const HTuple& GenParamValue, HTuple* MessageHandle)
void HMessage::HMessage(const HString& FileName, const HTuple& GenParamName, const HTuple& GenParamValue)
void HMessage::HMessage(const HString& FileName, const HString& GenParamName, const HString& GenParamValue)
void HMessage::HMessage(const char* FileName, const char* GenParamName, const char* GenParamValue)
void HMessage::HMessage(const wchar_t* FileName, const wchar_t* GenParamName, const wchar_t* GenParamValue)
(
Windows only)
void HMessage::ReadMessage(const HString& FileName, const HTuple& GenParamName, const HTuple& GenParamValue)
void HMessage::ReadMessage(const HString& FileName, const HString& GenParamName, const HString& GenParamValue)
void HMessage::ReadMessage(const char* FileName, const char* GenParamName, const char* GenParamValue)
void HMessage::ReadMessage(const wchar_t* FileName, const wchar_t* GenParamName, const wchar_t* GenParamValue)
(
Windows only)
static void HOperatorSet.ReadMessage(HTuple fileName, HTuple genParamName, HTuple genParamValue, out HTuple messageHandle)
public HMessage(string fileName, HTuple genParamName, HTuple genParamValue)
public HMessage(string fileName, string genParamName, string genParamValue)
void HMessage.ReadMessage(string fileName, HTuple genParamName, HTuple genParamValue)
void HMessage.ReadMessage(string fileName, string genParamName, string genParamValue)
描述
read_messageread_messageReadMessageReadMessageReadMessageread_message reads a message that has been stored with
write_messagewrite_messageWriteMessageWriteMessageWriteMessagewrite_message。The default HALCON file extension for a message is 'hmsg'.
执行信息
- 多线程类型：独立（即使使用独占算子也能并行运行）。
- 多线程作用域：全局（可从任何线程调用）。
- 未采用并行化处理。
此算子返回一个句柄。请注意，即使该句柄被用作特定算子的输入参数，这些算子仍可能改变此句柄类型的实例状态。
参数
FileNameFileNameFileNameFileNamefileNamefile_name (输入控制) filename.read → HTuplestrHTupleHtuple (string) (string) (HString) (char*)
File name.
File extension:
.hmsg
GenParamNameGenParamNameGenParamNameGenParamNamegenParamNamegen_param_name (输入控制) attribute.name(-array) → HTupleMaybeSequence[str]HTupleHtuple (string) (string) (HString) (char*)
Name of the generic parameter.
默认值：
[]
值列表：
'name'"name""name""name""name""name"
GenParamValueGenParamValueGenParamValueGenParamValuegenParamValuegen_param_value (输入控制) attribute.name(-array) → HTupleMaybeSequence[Union[int, float, str]]HTupleHtuple (string / integer / real) (string / int / long / double) (HString / Hlong / double) (char* / Hlong / double)
Value of the generic parameter.
默认值：
[]
MessageHandleMessageHandleMessageHandleMessageHandlemessageHandlemessage_handle (输出控制) message → HMessage, HTupleHHandleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)
Message handle.
元素数量：
MessageHandle == 1
Assertion:
MessageHandle != 0
结果
如果参数有效，算子 read_messageread_messageReadMessageReadMessageReadMessageread_message 返回值 2 ( H_MSG_TRUE )。如有必要，则抛出异常。
可能的前趋
write_messagewrite_messageWriteMessageWriteMessageWriteMessagewrite_message
另见
write_messagewrite_messageWriteMessageWriteMessageWriteMessagewrite_message,
serialize_handleserialize_handleSerializeHandleSerializeHandleSerializeHandleserialize_handle,
deserialize_handledeserialize_handleDeserializeHandleDeserializeHandleDeserializeHandledeserialize_handle
模块
基础