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Hello

Please teach it about UnsubclassWindow.
I want to perform a change of a tab.

I delete pTabOld in UnsubclassWindow.
However, old pTabOld is displayed.

pTabOld->SetRedraw( FALSE );
pTabOld->EnableWindow( FALSE );
RemoveAnchor ( pTabOld->m_hWnd );
HWND hWnd = pTabOld->UnsubclassWindow( );

CExtTabPageContainerWnd * pNewTab = new CExtTabPageContainerWnd;
if (! pNewTab->SubclassDlgItem ( IDC_MULTILIST2 , this )){
return ;
}

We recommend you use two tab page container windows and avoid window unsubclassing because you may encounter some difficulties. Each tab page container window keeps internal data about tab page windows. This information must also be moved from the unsubclassed tab page container class into the subclassed one.

Hello

　I make each tab resource domain.
And I change it if necessary.
　In this way I think.
Is it good?

----------------------------------------------------------------------
AddAnchor( IDC_TAB_LISTA , __RDA_LT, __RDA_RT );
AddAnchor( IDC_TAB_LISTB , __RDA_LT, __RDA_RT );

GetDlgItem( IDC_TAB_LISTA )->ShowWindow( SW_SHOW );
GetDlgItem( IDC_TAB_LISTB )->ShowWindow( SW_HIDE );
----------------------------------------------------------------------

Thank You

Your code looks correct but it is not completely clear what you actually need to do. So please give us more details. If you send us a test project, that would be helpful.