createDevice method

Syntax

createDevice(deviceId, deviceType, options, callback);

createDevice(deviceId, deviceType, crypto, callback);

Parameter

Supplementary explanation

• When the createDevice method is successfully run, devices except for the printer will be exclusively locked.
• When DEVICE_TYPE_DISPLAY is specified in deviceType, specify local_display in deviceId.
• When DEVICE_TYPE_DT is specified in deviceType, specify local_dt in deviceId.
• When the device object cannot be acquired, null instead of the device object will be passed to the first parameter.
• When the createDevice method is called by specifying an exclusively locked device, DEVICE_IN_USE will be returned.
• While returning from occurrence of ondisconnect event, calling the createDevice method may return DEVICE_IN_USE depending on the call timing. In this case, call the createDevice method repeatedly until a string other than DEVICE_IN_USE is returned.
• If the createDevice method is executed to the same device again after the createDevice method is executed, DEVICE_OPEN_ERROR may occur depending on the processing timing and the connection with the device may be terminated.
• This API will succeed regardless of the connection status of the TM printer (master) and peripheral devices.
• When controlling DM-D30 or DM-D70 from TM-m30 printer, and when controlling DM-D110 or DM-D30 or DM-D70 from TM-T88VI printer, DM-D110 or DM-D30 or DM-D70 is not exclusively locked. Even if the createDevice method is called from the other device specifying the DM-D110 or DM-D30 or DM-D70, “DEVICE_IN_USE” is not returned.
• The encryption function of communication data can be used in the TM-i series and TM-DT series.
• When the connect method is running in the system configuration of TM Printer + DM-D + barcode scanner model, do not enable the options parameter eposprint property.
• In the system configuration of TM Printer + DM-D + barcode scanner model, specify the following deviceId for the deviceType.

• deviceType	deviceId
  DEVICE_TYPE_PRINTER	local_printer
  DEVICE_TYPE_DISPLAY	local_display
  DEVICE_TYPE_SCANNER	local_scanner
  DEVICE_TYPE_GFE	local_TSE