dll/win32/shell32/CDropTargetHelper.h

   1 /*
   2  *      file system folder
   3  *
   4  *      Copyright 1997                      Marcus Meissner
   5  *      Copyright 1998, 1999, 2002      Juergen Schmied
   6  *      Copyright 2009              Andrew Hill
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23 #ifndef _DRAGDROPHELPER_H_
  24 #define _DRAGDROPHELPER_H_
  25
  26 class CDropTargetHelper :
  27         public CComCoClass<CDropTargetHelper, &CLSID_DragDropHelper>,
  28         public CComObjectRootEx<CComMultiThreadModelNoCS>,
  29         public IDragSourceHelper,
  30         public IDropTargetHelper
  31 {
  32 private:
  33 public:
  34         CDropTargetHelper();
  35         ~CDropTargetHelper();
  36
  37         virtual HRESULT WINAPI InitializeFromBitmap(LPSHDRAGIMAGE pshdi, IDataObject *pDataObject);
  38         virtual HRESULT WINAPI InitializeFromWindow(HWND hwnd, POINT *ppt, IDataObject *pDataObject);
  39
  40         virtual HRESULT WINAPI DragEnter (HWND hwndTarget, IDataObject* pDataObject, POINT* ppt, DWORD dwEffect);
  41         virtual HRESULT WINAPI DragLeave();
  42         virtual HRESULT WINAPI DragOver(POINT *ppt, DWORD dwEffect);
  43         virtual HRESULT WINAPI Drop(IDataObject* pDataObject, POINT* ppt, DWORD dwEffect);
  44         virtual HRESULT WINAPI Show(BOOL fShow);
  45
  46 DECLARE_REGISTRY_RESOURCEID(IDR_DRAGDROPHELPER)
  47 DECLARE_NOT_AGGREGATABLE(CDropTargetHelper)
  48
  49 DECLARE_PROTECT_FINAL_CONSTRUCT()
  50
  51 BEGIN_COM_MAP(CDropTargetHelper)
  52         COM_INTERFACE_ENTRY_IID(IID_IDragSourceHelper, IDragSourceHelper)
  53         COM_INTERFACE_ENTRY_IID(IID_IDropTargetHelper, IDropTargetHelper)
  54 END_COM_MAP()
  55 };
  56
  57 #endif /* _DRAGDROPHELPER_H_ */