1 /*****************************************************************************
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2 * dragdrop.h: drag and drop management
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3 *****************************************************************************
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4 * Copyright (C) 2002 VideoLAN
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6 * Authors: Olivier Teuliere <ipkiss@via.ecp.fr>
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8 * This program is free software; you can redistribute it and/or modify
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9 * it under the terms of the GNU General Public License as published by
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10 * the Free Software Foundation; either version 2 of the License, or
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11 * (at your option) any later version.
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13 * This program is distributed in the hope that it will be useful,
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14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 * GNU General Public License for more details.
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18 * You should have received a copy of the GNU General Public License
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19 * along with this program; if not, write to the Free Software
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20 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
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21 *****************************************************************************/
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25 //---------------------------------------------------------------------------
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28 #define WM_OLEDROP WM_USER + 1
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29 //---------------------------------------------------------------------------
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31 class TDropTarget : public IDropTarget
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34 __fastcall TDropTarget( HWND HForm );
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35 __fastcall ~TDropTarget();
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38 /* IUnknown methods */
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39 STDMETHOD(QueryInterface)( REFIID riid, void FAR* FAR* ppvObj );
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40 STDMETHOD_(ULONG, AddRef)();
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41 STDMETHOD_(ULONG, Release)();
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43 /* IDropTarget methods */
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44 STDMETHOD(DragEnter)( LPDATAOBJECT pDataObj, DWORD grfKeyState,
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45 POINTL pt, DWORD *pdwEffect );
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46 STDMETHOD(DragOver)( DWORD grfKeyState, POINTL pt, DWORD *pdwEffect );
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47 STDMETHOD(DragLeave)();
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48 STDMETHOD(Drop)( LPDATAOBJECT pDataObj, DWORD grfKeyState,
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49 POINTL pt, DWORD *pdwEffect );
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52 unsigned long References;
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55 /* helper function */
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56 void __fastcall HandleDrop( HDROP HDrop );
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58 //---------------------------------------------------------------------------
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