The following error return codes are returned from NDI procedures and messages.
| Value | Description |
|---|---|
| OK | Success |
| ERR_NDI_ERROR | General NDI error |
| ERR_NDI_INVALID_HNDI | Invalid NDI handle |
| ERR_NDI_INVALID_DEVICE_INFO | Invalid DEVICE_INFO pointer |
| ERR_NDI_INVALID_DRIVER_PROC | Invalid external driver procedure (could not load the DLL or find the exported function name) |
| ERR_NDI_LOW_MEM | Not enough memory to complete the given action |
| ERR_NDI_REG_API | Error accessing the registry |
| ERR_NDI_NOTBOUND | The two NDI objects are not bound or the binding does not exist |
| ERR_NDI_NO_MATCH | The specified interfaces do not match |
| ERR_NDI_INVALID_NETCLASS | The network class is invalid |
| ERR_NDI_CANCEL | The user canceled the dialog or operation |