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18  */
19 
20 #ifndef INCLUDED_SHELL_INC_INTERNAL_COLUMNINFO_HXX
21 #define INCLUDED_SHELL_INC_INTERNAL_COLUMNINFO_HXX
22 
23 #include <shlobj.h>
24 
25 
26 class CColumnInfo : public IColumnProvider
27 {
28 public:
29     CColumnInfo(long RefCnt = 1);
30     virtual ~CColumnInfo();
31 
32 
33     // IUnknown methods
34 
35 
36     virtual COM_DECLSPEC_NOTHROW HRESULT STDMETHODCALLTYPE QueryInterface(
37             REFIID riid,
38             void __RPC_FAR *__RPC_FAR *ppvObject) override;
39 
40     virtual COM_DECLSPEC_NOTHROW ULONG STDMETHODCALLTYPE AddRef() override;
41 
42     virtual COM_DECLSPEC_NOTHROW ULONG STDMETHODCALLTYPE Release() override;
43 
44 
45     // IColumnProvider
46 
47 
48     virtual COM_DECLSPEC_NOTHROW HRESULT STDMETHODCALLTYPE Initialize(LPCSHCOLUMNINIT psci) override;
49 
50     virtual COM_DECLSPEC_NOTHROW HRESULT STDMETHODCALLTYPE GetColumnInfo(DWORD dwIndex, SHCOLUMNINFO *psci) override;
51 
52     virtual COM_DECLSPEC_NOTHROW HRESULT STDMETHODCALLTYPE GetItemData(
53         LPCSHCOLUMNID pscid, LPCSHCOLUMNDATA pscd, VARIANT *pvarData) override;
54 
55 private:
56     long    m_RefCnt;
57 };
58 
59 #endif
60 
61 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
62