FileDropTarget.h

/* 
 *      Copyright (C) 2003-2005 Gabest
 *      http://www.gabest.org
 *
 *  This Program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2, or (at your option)
 *  any later version.
 *   
 *  This Program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *  GNU General Public License for more details.
 *   
 *  You should have received a copy of the GNU General Public License
 *  along with GNU Make; see the file COPYING.  If not, write to
 *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. 
 *  http://www.gnu.org/copyleft/gpl.html
 *
 */

#pragma once

#include <afxole.h>

class CDropTarget
{
public:
        CDropTarget() {}

        virtual DROPEFFECT OnDragEnter(COleDataObject* pDataObject, DWORD dwKeyState, CPoint point) {return DROPEFFECT_NONE;}
        virtual DROPEFFECT OnDragOver(COleDataObject* pDataObject, DWORD dwKeyState, CPoint point) {return DROPEFFECT_NONE;}
        virtual BOOL OnDrop(COleDataObject* pDataObject, DROPEFFECT dropEffect, CPoint point) {return FALSE;}
        virtual DROPEFFECT OnDropEx(COleDataObject* pDataObject, DROPEFFECT dropDefault, DROPEFFECT dropList, CPoint point) {return (DROPEFFECT)-1;}
        virtual void OnDragLeave() {}
        virtual DROPEFFECT OnDragScroll(DWORD dwKeyState, CPoint point) {return DROPEFFECT_NONE;}
};

// CFileDropTarget command target

class CFileDropTarget : public COleDropTarget
{
//      DECLARE_DYNAMIC(CFileDropTarget)

private:
        CDropTarget* m_pDropTarget;

public:
        CFileDropTarget(CDropTarget* pDropTarget);
        virtual ~CFileDropTarget();

protected:
        DECLARE_MESSAGE_MAP()

        DROPEFFECT OnDragEnter(CWnd* pWnd, COleDataObject* pDataObject, DWORD dwKeyState, CPoint point);
        DROPEFFECT OnDragOver(CWnd* pWnd, COleDataObject* pDataObject, DWORD dwKeyState, CPoint point);
        BOOL OnDrop(CWnd* pWnd, COleDataObject* pDataObject, DROPEFFECT dropEffect, CPoint point);
        DROPEFFECT OnDropEx(CWnd* pWnd, COleDataObject* pDataObject, DROPEFFECT dropDefault, DROPEFFECT dropList, CPoint point);
        void OnDragLeave(CWnd* pWnd);
        DROPEFFECT OnDragScroll(CWnd* pWnd, DWORD dwKeyState, CPoint point);
};

---