Get previous item in outline

In the previous section, we defined an overloaded version of GetNextItem()
which returns the next item in the outline as if the outline were completely
expanded. We now define its counterpart: GetPrevItem(). This function uses
the GetLastItem() defined in an earlier section.


// GetNextItem  – Get previous item
as if outline was completely expanded

// Returns             
– The item immediately above the reference item

// hItem               
– The reference item

HTREEITEM CTreeCtrlX::GetPrevItem( HTREEITEM hItem )



        hti = GetPrevSiblingItem(hItem);

        if( hti == NULL )

hti = GetParentItem(hItem);


hti = GetLastItem(hti);

        return hti;


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