control_io_channelT_control_io_channelControlIoChannelControlIoChannel (Operator)
Name
control_io_channelT_control_io_channelControlIoChannelControlIoChannel — Perform an action on I/O channels.
Signature
Description
control_io_channelcontrol_io_channelControlIoChannelControlIoChannelControlIoChannel 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'"doc/html/reference/io""doc/html/reference/io""doc/html/reference/io""doc/html/reference/io".
Execution Information
- Multithreading type: reentrant (runs in parallel with non-exclusive operators).
- Multithreading scope: global (may be called from any thread).
- Processed without parallelization.
Parameters
IOChannelHandleIOChannelHandleIOChannelHandleIOChannelHandleIOChannelHandle (input_control) io_channel(-array) → HIOChannel, HTupleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)
Handles of the opened I/O channels.
ParamActionParamActionParamActionParamActionparamAction (input_control) string → HTupleHTupleHtuple (string) (string) (HString) (char*)
Name of the action to perform.
ParamArgumentParamArgumentParamArgumentParamArgumentparamArgument (input_control) string-array → HTupleHTupleHtuple (string / integer / real) (string / int / long / double) (HString / Hlong / double) (char* / Hlong / double)
List of arguments for the action.
Default value: []
GenParamValueGenParamValueGenParamValueGenParamValuegenParamValue (output_control) string-array → HTupleHTupleHtuple (string / integer / real) (string / int / long / double) (HString / Hlong / double) (char* / Hlong / double)
List of values returned by the action.
Result
If the parameters are valid, the operator control_io_channelcontrol_io_channelControlIoChannelControlIoChannelControlIoChannel
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_infoGetExtendedErrorInfoGetExtendedErrorInfoGetExtendedErrorInfo.
Possible Predecessors
open_io_channelopen_io_channelOpenIoChannelOpenIoChannelOpenIoChannel
Module
Foundation