Citizen CT-801II Series, Programming Manual

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CITIZEN UWP POS Print SDK - Programming Manual
3.3.14. DisplayDataAsync method
Syntax
Task<int> DisplayDataAsync (byte[] data)
Parameter
The meanings and settable values of the parameters are as follows.
Element Meaning Settable range
data Send data
Description
This method is used to transmit byte data as it is to the device.
Be careful not to affect other methods when using it.
Return value
Return CDP_SUCCESS (0) in success. Please refer to " 3.3.1 Return value "" for the error code except it.
Example
// Execute self test
res = await display.DisplayData(new byte[]{0x1f, 0x40});