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Hi:

I’d like to have the cabability of showing / hiding the mdi tab bar when using a CExtTabMdiWnd.  The tab bar would be hidden in two cases:

 1)  Only one document is open.  In this case, it would look like an SDI application.

 2)  In full screen mode.

One possibility that would work would be similar to the CManagedTabPageContainer in the TabPages example.  I could override the OnFlatTabWndGetSize function to return 0 when I want to hide the tabs. 

There are twp problems with this:

 -  I don’t have the flexibility of using other styles of windows like CExtTabMdiOneNoteWnd (for example)

-   It just seems liike this should be easier!

 

Thanks,

Bob Sabiston

 

The visibility of the mdi tab window is managed automatically by the CExtTabMdiWnd::OnTabWndSyncVisibility virtual method. So, just override this method in a CExtTabMdiWnd-derived class like as follows:

class CMyExtTabMdiWnd : public CExtTabMdiOneNoteWnd 
{
public:
    CMyExtTabMdiWnd() 
        : CExtTabMdiOneNoteWnd()
        , m_bVisible( true )
    {
    }
    void SetVisibility(bool bVisible=true)
    {
        m_bVisible = bVisible;
    } 
    bool GetVisibility()
    {
        return m_bVisible;
    } 
protected:    
    bool m_bVisible;
    virtual void OnTabWndSyncVisibility ()
    {
        ShowWindow( 
            m_bVisible && ItemGetCount() > 0
                ? SW_SHOW 
                : SW_HIDE 
                );
    }
}; // class CMyExtTabMdiWnd

After calling the CMyExtTabMdiWnd::SetVisibility method, do not forget to call the RecalcLayout method of the frame window.