control_io_channelT_control_io_channelControlIoChannelControlIoChannelcontrol_io_channel (Operator)
名称
control_io_channelT_control_io_channelControlIoChannelControlIoChannelcontrol_io_channel — 在输入/输出通道上执行操作。
签名
def control_io_channel(iochannel_handle: MaybeSequence[HHandle], action: str, argument: Sequence[Union[int, float, str]]) -> Sequence[Union[int, float, str]]
描述
control_io_channelcontrol_io_channelControlIoChannelControlIoChannelControlIoChannelcontrol_io_channel performs an action on the specified I/O channels.
The supported parameters are interface-specific and listed in the
corresponding documentation of the used I/O interface that can be
found in the directory doc/html/reference/io.
执行信息
- Multithreading type: reentrant (runs in parallel with non-exclusive operators).
- Multithreading scope: global (may be called from any thread).
- Processed without parallelization.
参数
IOChannelHandleIOChannelHandleIOChannelHandleIOChannelHandleIOChannelHandleiochannel_handle (input_control) io_channel(-array) → HIOChannel, HTupleMaybeSequence[HHandle]HTupleHtuple (handle) (IntPtr) (HHandle) (handle)
Handles of the opened I/O channels.
ActionActionActionActionactionaction (input_control) string → HTuplestrHTupleHtuple (string) (string) (HString) (char*)
Name of the action to perform.
ArgumentArgumentArgumentArgumentargumentargument (input_control) string-array → HTupleSequence[Union[int, float, str]]HTupleHtuple (string / integer / real) (string / int / long / double) (HString / Hlong / double) (char* / Hlong / double)
List of arguments for the action.
默认值：
[]
ResultResultResultResultresultresult (output_control) string-array → HTupleSequence[Union[int, float, str]]HTupleHtuple (string / integer / real) (string / int / long / double) (HString / Hlong / double) (char* / Hlong / double)
List of values returned by the action.
结果
If the parameters are valid, the operator control_io_channelcontrol_io_channelControlIoChannelControlIoChannelControlIoChannelcontrol_io_channel
returns the value 2 (
H_MSG_TRUE)
. If necessary an exception is raised. In this
case an extended error information may be set and can be queried with
the operator get_extended_error_infoget_extended_error_infoGetExtendedErrorInfoGetExtendedErrorInfoGetExtendedErrorInfoget_extended_error_info.
可能的前置算子
open_io_channelopen_io_channelOpenIoChannelOpenIoChannelOpenIoChannelopen_io_channel
模块
Foundation