# A3DCallbackReportError

type `A3DCallbackReportError`

  A callback function the library invokes to report error messages.

  The returned message begins with a unique error code, which you can use for localization. In some cases, the second argument provides additional information about the error. These messages are English only.

  If this callback function is not provided, the library sends error messages to the null device.

  > 2.0

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