2 * Ole 2 Create functions implementation
4 * Copyright (C) 1999-2000 Abey George
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 #include "wine/debug.h"
30 WINE_DEFAULT_DEBUG_CHANNEL(ole);
32 #define MAX_CLIPFORMAT_NAME 80
34 /******************************************************************************
35 * OleQueryCreateFromData [OLE32.117]
37 * Author : Abey George
38 * Checks whether an object can become an embedded object.
39 * the clipboard or OLE drag and drop.
40 * Returns : S_OK - Format that supports Embedded object creation are present.
41 * OLE_E_STATIC - Format that supports static object creation are present.
42 * S_FALSE - No acceptable format is available.
45 HRESULT WINAPI OleQueryCreateFromData(LPDATAOBJECT pSrcDataObject)
49 CHAR szFmtName[MAX_CLIPFORMAT_NAME];
50 BOOL bFoundStatic = FALSE;
52 HRESULT hr = IDataObject_EnumFormatEtc(pSrcDataObject, DATADIR_GET, &pfmt);
55 hr = IEnumFORMATETC_Next(pfmt, 1, &fmt, NULL);
59 GetClipboardFormatNameA(fmt.cfFormat, szFmtName, MAX_CLIPFORMAT_NAME-1);
61 /* first, Check for Embedded Object, Embed Source or Filename */
63 if (!strcmp(szFmtName, CF_EMBEDDEDOBJECT) || !strcmp(szFmtName, CF_EMBEDSOURCE) || !strcmp(szFmtName, CF_FILENAME))
66 /* Check for Metafile, Bitmap or DIB */
68 if (fmt.cfFormat == CF_METAFILEPICT || fmt.cfFormat == CF_BITMAP || fmt.cfFormat == CF_DIB)
71 hr = IEnumFORMATETC_Next(pfmt, 1, &fmt, NULL);
74 /* Found a static format, but no embed format */
82 /******************************************************************************
83 * OleCreateFromData [OLE32.92]
85 * Author : Abey George
86 * Creates an embedded object from data transfer object retrieved from
87 * the clipboard or OLE drag and drop.
88 * Returns : S_OK - Embedded object was created successfully.
89 * OLE_E_STATIC - OLE can create only a static object
90 * DV_E_FORMATETC - No acceptable format is available (only error return code)
91 * TODO : CF_FILENAME, CF_EMBEDEDOBJECT formats. Parameter renderopt is currently ignored.
94 HRESULT WINAPI OleCreateFromData(LPDATAOBJECT pSrcDataObject, REFIID riid,
95 DWORD renderopt, LPFORMATETC pFormatEtc,
96 LPOLECLIENTSITE pClientSite, LPSTORAGE pStg,
101 CHAR szFmtName[MAX_CLIPFORMAT_NAME];
106 hr = IDataObject_EnumFormatEtc(pSrcDataObject, DATADIR_GET, &pfmt);
110 memset(&std, 0, sizeof(STGMEDIUM));
112 hr = IEnumFORMATETC_Next(pfmt, 1, &fmt, NULL);
115 GetClipboardFormatNameA(fmt.cfFormat, szFmtName, MAX_CLIPFORMAT_NAME-1);
117 /* first, Check for Embedded Object, Embed Source or Filename */
118 /* TODO: Currently checks only for Embed Source. */
120 if (!strcmp(szFmtName, CF_EMBEDSOURCE))
122 std.tymed = TYMED_HGLOBAL;
124 if ((hr1 = IDataObject_GetData(pSrcDataObject, &fmt, &std)) == S_OK)
126 ILockBytes *ptrILockBytes = 0;
127 IStorage *pStorage = 0;
128 IOleObject *pOleObject = 0;
129 IPersistStorage *pPersistStorage = 0;
132 /* Create ILock bytes */
134 hr1 = CreateILockBytesOnHGlobal(std.u.hGlobal, FALSE, &ptrILockBytes);
136 /* Open storage on the ILock bytes */
139 hr1 = StgOpenStorageOnILockBytes(ptrILockBytes, NULL, STGM_SHARE_EXCLUSIVE, NULL, 0, &pStorage);
141 /* Get Class ID from the opened storage */
144 hr1 = ReadClassStg(pStorage, &clsID);
146 /* Create default handler for Persist storage */
149 hr1 = OleCreateDefaultHandler(&clsID, NULL, &IID_IPersistStorage, (LPVOID*)&pPersistStorage);
151 /* Load the storage to Persist storage */
154 hr1 = IPersistStorage_Load(pPersistStorage, pStorage);
156 /* Query for IOleObject */
159 hr1 = IPersistStorage_QueryInterface(pPersistStorage, &IID_IOleObject, (LPVOID*)&pOleObject);
161 /* Set client site with the IOleObject */
164 hr1 = IOleObject_SetClientSite(pOleObject, pClientSite);
166 IPersistStorage_Release(pPersistStorage);
167 /* Query for the requested interface */
170 hr1 = IPersistStorage_QueryInterface(pPersistStorage, riid, ppvObj);
172 IPersistStorage_Release(pPersistStorage);
174 IStorage_Release(pStorage);
182 return DV_E_FORMATETC;
185 hr = IEnumFORMATETC_Next(pfmt, 1, &fmt, NULL);
189 return DV_E_FORMATETC;