Return Codes

Return Code	Reason
dmNoErr	Operation has completed without error.
dmDeviceNotFound	The device is not available.
dmTimecodeNotFound	The device cannot read the timecode from the media, or there is none to be read.
dmBadTimecode	The device has timecode but it doesn’t trust it.
dmCantRecord	The device is unable to record to the media.
dmUserAborted	The operation has stopped because the user cancelled.
dmLastErrorSet	The device controller set the last error string using the Error Suite.
dmExportToTapeFinished	The device controller is signaling the end of the export to tape operation.
dmTapeWriteProtected	Return value during Export To Tape if tape is write protected.
dmNoTape	Return value during Export To Tape if there is no tape in the deck.
dmLastInfoSet	The device controller set the last info string using the Error Suite.
dmLastWarningSet	The device controller set the last warning string using the Error Suite.
dmHasNoOptions	Return during dsHasOptions to disable the device controller options button..
dmUnknownError	The device controller set the last error string using the Error Suite.
dmUnsupported	The selector is not recognized, or unsupported.
dmGeneralError	Unspecified error.