HALCON 20.11.0.0 / HALCON Operator Reference / System / I/O Devices
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control_io_deviceT_control_io_deviceControlIoDeviceControlIoDevicecontrol_io_device (Operator)

Name

control_io_deviceT_control_io_deviceControlIoDeviceControlIoDevicecontrol_io_device — Perform an action on the I/O device.

Signature

control_io_device( : : IODeviceHandle, Action, Argument : Result)

Herror T_control_io_device(const Htuple IODeviceHandle, const Htuple Action, const Htuple Argument, Htuple* Result)

void ControlIoDevice(const HTuple& IODeviceHandle, const HTuple& Action, const HTuple& Argument, HTuple* Result)

HTuple HIODevice::ControlIoDevice(const HString& Action, const HTuple& Argument) const

HTuple HIODevice::ControlIoDevice(const HString& Action, const HString& Argument) const

HTuple HIODevice::ControlIoDevice(const char* Action, const char* Argument) const

HTuple HIODevice::ControlIoDevice(const wchar_t* Action, const wchar_t* Argument) const   (Windows only)

static void HOperatorSet.ControlIoDevice(HTuple IODeviceHandle, HTuple action, HTuple argument, out HTuple result)

HTuple HIODevice.ControlIoDevice(string action, HTuple argument)

HTuple HIODevice.ControlIoDevice(string action, string argument)

def control_io_device(iodevice_handle: HHandle, action: str, argument: MaybeSequence[Union[int, float, str]]) -> Sequence[Union[int, float, str]]

Description

control_io_devicecontrol_io_deviceControlIoDeviceControlIoDeviceControlIoDevicecontrol_io_device performs an action on the I/O device. 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""doc/html/reference/io".

Execution Information

Parameters

IODeviceHandleIODeviceHandleIODeviceHandleIODeviceHandleIODeviceHandleiodevice_handle (input_control)  io_device → HIODevice, HTupleHHandleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)

Handle of the opened I/O device.

ActionActionActionActionactionaction (input_control)  string → HTuplestrHTupleHtuple (string) (string) (HString) (char*)

Name of the action to perform.

ArgumentArgumentArgumentArgumentargumentargument (input_control)  string(-array) → HTupleMaybeSequence[Union[int, float, str]]HTupleHtuple (string / integer / real) (string / int / long / double) (HString / Hlong / double) (char* / Hlong / double)

List of arguments for the action.

Default value: []

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 result values returned by the action.

Result

If the parameters are valid, the operator control_io_devicecontrol_io_deviceControlIoDeviceControlIoDeviceControlIoDevicecontrol_io_device 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.

Possible Predecessors

open_io_deviceopen_io_deviceOpenIoDeviceOpenIoDeviceOpenIoDeviceopen_io_device

Module

Foundation

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