/* * Ole 2 Create functions implementation * * Copyright (C) 1999-2000 Abey George * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include #include #define COBJMACROS #define NONAMELESSUNION #define NONAMELESSSTRUCT #include "windef.h" #include "winbase.h" #include "wingdi.h" #include "winuser.h" #include "wine/debug.h" #include "ole2.h" #include "olestd.h" #include "winreg.h" WINE_DEFAULT_DEBUG_CHANNEL(ole); #define MAX_CLIPFORMAT_NAME 80 /****************************************************************************** * OleQueryCreateFromData [OLE32.@] * * Author : Abey George * Checks whether an object can become an embedded object. * the clipboard or OLE drag and drop. * Returns : S_OK - Format that supports Embedded object creation are present. * OLE_E_STATIC - Format that supports static object creation are present. * S_FALSE - No acceptable format is available. */ HRESULT WINAPI OleQueryCreateFromData(LPDATAOBJECT pSrcDataObject) { IEnumFORMATETC *pfmt; FORMATETC fmt; CHAR szFmtName[MAX_CLIPFORMAT_NAME]; BOOL bFoundStatic = FALSE; HRESULT hr = IDataObject_EnumFormatEtc(pSrcDataObject, DATADIR_GET, &pfmt); if (hr == S_OK) hr = IEnumFORMATETC_Next(pfmt, 1, &fmt, NULL); while (hr == S_OK) { GetClipboardFormatNameA(fmt.cfFormat, szFmtName, MAX_CLIPFORMAT_NAME-1); /* first, Check for Embedded Object, Embed Source or Filename */ if (!strcmp(szFmtName, CF_EMBEDDEDOBJECT) || !strcmp(szFmtName, CF_EMBEDSOURCE) || !strcmp(szFmtName, CF_FILENAME)) return S_OK; /* Check for Metafile, Bitmap or DIB */ if (fmt.cfFormat == CF_METAFILEPICT || fmt.cfFormat == CF_BITMAP || fmt.cfFormat == CF_DIB) bFoundStatic = TRUE; hr = IEnumFORMATETC_Next(pfmt, 1, &fmt, NULL); } /* Found a static format, but no embed format */ if (bFoundStatic) return OLE_S_STATIC; return S_FALSE; } /****************************************************************************** * OleCreateFromData [OLE32.@] * * Author : Abey George * Creates an embedded object from data transfer object retrieved from * the clipboard or OLE drag and drop. * Returns : S_OK - Embedded object was created successfully. * OLE_E_STATIC - OLE can create only a static object * DV_E_FORMATETC - No acceptable format is available (only error return code) * TODO : CF_FILENAME, CF_EMBEDEDOBJECT formats. Parameter renderopt is currently ignored. */ HRESULT WINAPI OleCreateFromData(LPDATAOBJECT pSrcDataObject, REFIID riid, DWORD renderopt, LPFORMATETC pFormatEtc, LPOLECLIENTSITE pClientSite, LPSTORAGE pStg, LPVOID* ppvObj) { IEnumFORMATETC *pfmt; FORMATETC fmt; CHAR szFmtName[MAX_CLIPFORMAT_NAME]; STGMEDIUM std; HRESULT hr; HRESULT hr1; hr = IDataObject_EnumFormatEtc(pSrcDataObject, DATADIR_GET, &pfmt); if (hr == S_OK) { memset(&std, 0, sizeof(STGMEDIUM)); hr = IEnumFORMATETC_Next(pfmt, 1, &fmt, NULL); while (hr == S_OK) { GetClipboardFormatNameA(fmt.cfFormat, szFmtName, MAX_CLIPFORMAT_NAME-1); /* first, Check for Embedded Object, Embed Source or Filename */ /* TODO: Currently checks only for Embed Source. */ if (!strcmp(szFmtName, CF_EMBEDSOURCE)) { std.tymed = TYMED_HGLOBAL; if ((hr1 = IDataObject_GetData(pSrcDataObject, &fmt, &std)) == S_OK) { ILockBytes *ptrILockBytes = 0; IStorage *pStorage = 0; IOleObject *pOleObject = 0; IPersistStorage *pPersistStorage = 0; CLSID clsID; /* Create ILock bytes */ hr1 = CreateILockBytesOnHGlobal(std.u.hGlobal, FALSE, &ptrILockBytes); /* Open storage on the ILock bytes */ if (hr1 == S_OK) hr1 = StgOpenStorageOnILockBytes(ptrILockBytes, NULL, STGM_SHARE_EXCLUSIVE, NULL, 0, &pStorage); /* Get Class ID from the opened storage */ if (hr1 == S_OK) hr1 = ReadClassStg(pStorage, &clsID); /* Create default handler for Persist storage */ if (hr1 == S_OK) hr1 = OleCreateDefaultHandler(&clsID, NULL, &IID_IPersistStorage, (LPVOID*)&pPersistStorage); /* Load the storage to Persist storage */ if (hr1 == S_OK) hr1 = IPersistStorage_Load(pPersistStorage, pStorage); /* Query for IOleObject */ if (hr1 == S_OK) hr1 = IPersistStorage_QueryInterface(pPersistStorage, &IID_IOleObject, (LPVOID*)&pOleObject); /* Set client site with the IOleObject */ if (hr1 == S_OK) hr1 = IOleObject_SetClientSite(pOleObject, pClientSite); IPersistStorage_Release(pPersistStorage); /* Query for the requested interface */ if (hr1 == S_OK) hr1 = IPersistStorage_QueryInterface(pPersistStorage, riid, ppvObj); IPersistStorage_Release(pPersistStorage); IStorage_Release(pStorage); if (hr1 == S_OK) return S_OK; } /* Return error */ return DV_E_FORMATETC; } hr = IEnumFORMATETC_Next(pfmt, 1, &fmt, NULL); } } return DV_E_FORMATETC; } /****************************************************************************** * OleDuplicateData [OLE32.@] * * Duplicates clipboard data. * * PARAMS * hSrc [I] Handle of the source clipboard data. * cfFormat [I] The clipboard format of hSrc. * uiFlags [I] Flags to pass to GlobalAlloc. * * RETURNS * Success: handle to the duplicated data. * Failure: NULL. */ HANDLE WINAPI OleDuplicateData(HANDLE hSrc, CLIPFORMAT cfFormat, UINT uiFlags) { HANDLE hDst = NULL; TRACE("(%p,%x,%x)\n", hSrc, cfFormat, uiFlags); if (!uiFlags) uiFlags = GMEM_MOVEABLE; switch (cfFormat) { case CF_ENHMETAFILE: hDst = CopyEnhMetaFileW(hSrc, NULL); break; case CF_METAFILEPICT: hDst = CopyMetaFileW(hSrc, NULL); break; case CF_PALETTE: { LOGPALETTE * logpalette; UINT nEntries = GetPaletteEntries(hSrc, 0, 0, NULL); if (!nEntries) return NULL; logpalette = HeapAlloc(GetProcessHeap(), 0, FIELD_OFFSET(LOGPALETTE, palPalEntry[nEntries])); if (!logpalette) return NULL; if (!GetPaletteEntries(hSrc, 0, nEntries, logpalette->palPalEntry)) { HeapFree(GetProcessHeap(), 0, logpalette); return NULL; } logpalette->palVersion = 0x300; logpalette->palNumEntries = (WORD)nEntries; hDst = CreatePalette(logpalette); HeapFree(GetProcessHeap(), 0, logpalette); break; } case CF_BITMAP: { LONG size; BITMAP bm; if (!GetObjectW(hSrc, sizeof(bm), &bm)) return NULL; size = GetBitmapBits(hSrc, 0, NULL); if (!size) return NULL; bm.bmBits = HeapAlloc(GetProcessHeap(), 0, size); if (!bm.bmBits) return NULL; if (GetBitmapBits(hSrc, size, bm.bmBits)) hDst = CreateBitmapIndirect(&bm); HeapFree(GetProcessHeap(), 0, bm.bmBits); break; } default: { SIZE_T size = GlobalSize(hSrc); LPVOID pvSrc = NULL; LPVOID pvDst = NULL; /* allocate space for object */ if (!size) return NULL; hDst = GlobalAlloc(uiFlags, size); if (!hDst) return NULL; /* lock pointers */ pvSrc = GlobalLock(hSrc); if (!pvSrc) { GlobalFree(hDst); return NULL; } pvDst = GlobalLock(hDst); if (!pvDst) { GlobalUnlock(hSrc); GlobalFree(hDst); return NULL; } /* copy data */ memcpy(pvDst, pvSrc, size); /* cleanup */ GlobalUnlock(hDst); GlobalUnlock(hSrc); } } TRACE("returning %p\n", hDst); return hDst; }