All methods use the following error reporting:

• All methods return an RRESULT value indicating error/success/warning. All negative RRESULT values indicate an error condition.

Common error codes:

• E_FAIL – Unspecified error
• E_INVALIDARG – One or more arguments are invalid
• E_NOTIMPL – Not implemented
• E_OUTOFMEMORY – Out of memory
• E_UNEXPECTED – Catastrophic failure. Function(s) called at unexpected sequence.
• E_PENDING – The data necessary to complete this operation is not yet available. Object is still busy processing previous request.