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CITIZEN UWP POS Print SDK - Programming Manual
3.3.
Library interfaces
The following are the interfaces of this SDK.
3.3.1. Return value
Methods to be described later return the value in the list below.
Return value
Description
CDP_SUCCESS (0)
The operation is success.
CDP_E_CONNECTED (1001)
The device is already connected.
CDP_E_DISCONNECT (1002)
The device is not connected.
CDP_E_NOTCONNECT (1003)
Failed connection to the device.
CDP_E_CONNECT_NOTFOUND (1004)
Failed to check the support model after connecting to the device.
CDP_E_CONNECT_OFFLINE (1005)
Failed to check the printer status after connecting to the device.
CDP_E_ILLEGAL (1101)
Unsupported operation with the Device, or an invalid parameter value was
used.
CDP_E_OFFLINE (1102)
The printer is off-line.
CDP_E_FAILURE (1104)
The Service cannot perform the requested procedure.