How to unassign master page

Question

Hello everyone. How are you?
I'd like to assig none master spread to the page.
But, I didn't kow how to unassign it.
I find the clue in the API manual.
keyword is kApplyMasterSpreadCmdBoss, IID_IAPPLYMASTERCMDDATA
virtual void Set
UIDRef
UIDRef
UIDRef
[pure virtual]
Set the UIDRef of the master spread to use for applying to the page (or master pages) in the item list of the kApplyMasterSpreadCmdBoss.
If a page has an applied master, that master will draw before the contents of the page draw on top. Note that a master page may also have another master applied to it. Use kInvalidUID to apply the "None" master to a page.
so, i try it.
ErrorCode AlbumCreatePageitem::ApplyNoneMasterSpread( IDocument * document, UIDList &SpreadList )
ErrorCode status = kFailure;
do {
   * MasterSpread를 지정할 페이지에 Apply
  InterfacePtr<ICommand> iApplyMasterSpreadCmd(CmdUtils::CreateCommand(kApplyMasterSpreadCmdBoss));
  if (iApplyMasterSpreadCmd == nil){
   ASSERT(iApplyMasterSpreadCmd);
   TdpsLog::logging("ApplyMasterSpread","iApplyMasterSpreadCmd is nil");
   break;
  iApplyMasterSpreadCmd->SetItemList( SpreadList );
  InterfacePtr<IApplyMasterCmdData> iApplyMasterCmdData (iApplyMasterSpreadCmd, IID_IAPPLYMASTERCMDDATA  );
  if (iApplyMasterCmdData == nil){
   ASSERT(iApplyMasterCmdData);
   TdpsLog::logging("ApplyMasterSpread","iApplyMasterCmdData is nil");
   break;
  UIDRef masterUIDRef(::GetDataBase( document ), kInvalidUID);
  TdpsLog::logging("ApplyNoneMasterSpread","try set()");
  iApplyMasterCmdData->Set( (UIDRef)kInvalidUID, masterUIDRef, masterUIDRef );
  TdpsLog::logging("ApplyNoneMasterSpread","ok");
  // process the command
  status = CmdUtils::ProcessCommand(iApplyMasterSpreadCmd);
  if (status != kSuccess) {
   TdpsLog::logging("ApplyMasterSpread","ProcessCommand() Failure");
} while (0);
return status;
This over program not work only core dump.
Could you help me?
Thank you
Jung.

Answer 1

Thanks your reply.
I'm very happy..
Have a good day..
Jung.