dll/win32/shell32/enumidlist.h

   1 /*
   2  * This library is free software; you can redistribute it and/or
   3  * modify it under the terms of the GNU Lesser General Public
   4  * License as published by the Free Software Foundation; either
   5  * version 2.1 of the License, or (at your option) any later version.
   6  *
   7  * This library is distributed in the hope that it will be useful,
   8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  10  * Lesser General Public License for more details.
  11  *
  12  * You should have received a copy of the GNU Lesser General Public
  13  * License along with this library; if not, write to the Free Software
  14  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  15  */
  16 #ifndef __ENUMIDLIST_H__
  17 #define __ENUMIDLIST_H__
  18
  19 struct ENUMLIST
  20 {
  21         ENUMLIST                                *pNext;
  22         LPITEMIDLIST                    pidl;
  23 };
  24
  25 class IEnumIDListImpl :
  26         public CComObjectRootEx<CComMultiThreadModelNoCS>,
  27         public IEnumIDList
  28 {
  29 private:
  30         ENUMLIST                                *mpFirst;
  31         ENUMLIST                                *mpLast;
  32         ENUMLIST                                *mpCurrent;
  33 public:
  34         IEnumIDListImpl();
  35         ~IEnumIDListImpl();
  36         BOOL AddToEnumList(LPITEMIDLIST pidl);
  37         BOOL DeleteList();
  38         BOOL HasItemWithCLSID(LPITEMIDLIST pidl);
  39         BOOL CreateFolderEnumList(LPCWSTR lpszPath, DWORD dwFlags);
  40
  41         // *** IEnumIDList methods ***
  42         virtual HRESULT STDMETHODCALLTYPE Next(ULONG celt, LPITEMIDLIST *rgelt, ULONG *pceltFetched);
  43         virtual HRESULT STDMETHODCALLTYPE Skip(ULONG celt);
  44         virtual HRESULT STDMETHODCALLTYPE Reset();
  45         virtual HRESULT STDMETHODCALLTYPE Clone(IEnumIDList **ppenum);
  46
  47 BEGIN_COM_MAP(IEnumIDListImpl)
  48         COM_INTERFACE_ENTRY_IID(IID_IEnumIDList, IEnumIDList)
  49 END_COM_MAP()
  50 };
  51
  52 #endif /* ndef __ENUMIDLIST_H__ */