CMDIFrameWndEx::CanCovertControlBarToMDIChild
Called by the framework to determine whether the frame window can convert docking panes to tabbed documents
virtual BOOL CanCovertControlBarToMDIChild();
Return Value
Returns TRUE if the frame window can convert docking panes to tabbed documents; otherwise returns FALSE.
Remarks
Override this method in a derived class and return TRUE to enable the conversion of docking panes to tabbed documents. Alternatively, you can set CMDIFrameWndEx::m_bCanCovertControlBarToMDIChild to TRUE.
Requirements
Header: afxMDIFrameWndEx.h