get_io_device_paramT_get_io_device_paramGetIoDeviceParamGetIoDeviceParam (Operator)
Name
get_io_device_paramT_get_io_device_paramGetIoDeviceParamGetIoDeviceParam — Query settings of an I/O device instance.
Signature
Description
get_io_device_paramget_io_device_paramGetIoDeviceParamGetIoDeviceParamGetIoDeviceParam queries configuration settings of a
specific device instance. The query parameters are passed in
GenParamNameGenParamNameGenParamNameGenParamNamegenParamName, the corresponding configuration values are
returned in GenParamValueGenParamValueGenParamValueGenParamValuegenParamValue. IODeviceHandleIODeviceHandleIODeviceHandleIODeviceHandleIODeviceHandle specifies
the device returned in open_io_deviceopen_io_deviceOpenIoDeviceOpenIoDeviceOpenIoDevice.
Please check the directory 'doc/html/reference/io'"doc/html/reference/io""doc/html/reference/io""doc/html/reference/io""doc/html/reference/io" for
documentation about your specific I/O device interface, where all
supported device specific parameters are listed.
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
IODeviceHandleIODeviceHandleIODeviceHandleIODeviceHandleIODeviceHandle (input_control) io_device → HIODevice, HTupleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)
Handle of the opened I/O device.
GenParamNameGenParamNameGenParamNameGenParamNamegenParamName (input_control) attribute.name(-array) → HTupleHTupleHtuple (string) (string) (HString) (char*)
Parameter names.
Default value:
'param_name'
"param_name"
"param_name"
"param_name"
"param_name"
Suggested values: 'io_device_name'"io_device_name""io_device_name""io_device_name""io_device_name", 'param_name'"param_name""param_name""param_name""param_name"
GenParamValueGenParamValueGenParamValueGenParamValuegenParamValue (output_control) attribute.value(-array) → HTupleHTupleHtuple (string / integer / real) (string / int / long / double) (HString / Hlong / double) (char* / Hlong / double)
Parameter values.
Result
If the parameters are valid, the operator
get_io_device_paramget_io_device_paramGetIoDeviceParamGetIoDeviceParamGetIoDeviceParam 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_deviceopen_io_deviceOpenIoDeviceOpenIoDeviceOpenIoDevice,
set_io_device_paramset_io_device_paramSetIoDeviceParamSetIoDeviceParamSetIoDeviceParam
Possible Successors
open_io_channelopen_io_channelOpenIoChannelOpenIoChannelOpenIoChannel
See also
open_io_deviceopen_io_deviceOpenIoDeviceOpenIoDeviceOpenIoDevice,
query_io_interfacequery_io_interfaceQueryIoInterfaceQueryIoInterfaceQueryIoInterface,
set_io_device_paramset_io_device_paramSetIoDeviceParamSetIoDeviceParamSetIoDeviceParam
Module
Foundation