GetVolumeObjectId Event

Fires when the OS needs the volume object Id and extended information.


class CBFSGetVolumeObjectIdEventParams {
  void *ObjectId();
  int ObjectIdLength();
  void *ExtendedInformation();
  int ExtendedInformationLength();
  int ResultCode();
  void SetResultCode(int iResultCode);
  int EventRetVal();
  void SetEventRetVal(int iRetVal);
// To handle, connect one or more slots to this signal. void GetVolumeObjectId(CBFSGetVolumeObjectIdEventParams *e);
// Or, subclass CBFS and override this emitter function. virtual int FireGetVolumeObjectId(CBFSGetVolumeObjectIdEventParams *e) {...}


This event fires anytime the OS needs to retrieve the volume object Id and extended information for the virtual drive.

To handle this event properly, applications must populate the ObjectId and ExtendedInformation buffers with the most recent values obtained via SetVolumeObjectId.

The ObjectIdLength and ExtendedInformationLength values are specified by the OS; they will always be 16 and 48 bytes, respectively.

Please refer to the Buffer Parameters topic for more information on how to work with memory buffer event parameters.

The ResultCode parameter will always be 0 when the event is fired. If the event cannot be handled in a "successful" manner for some reason (e.g., a resource isn't available, security checks failed, etc.), set it to a non-zero value to report an appropriate error. Please refer to the Error Reporting and Handling topic for more information.

Copyright (c) 2022 Callback Technologies, Inc. - All rights reserved.
CBFS Connect 2020 Qt Edition - Version 20.0 [Build 8348]