mirror of
https://github.com/reactos/wine.git
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0799c1a780
Global replacement of debugtools.h by wine/debug.h.
680 lines
22 KiB
C
680 lines
22 KiB
C
/*
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* icon extracting
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*
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* taken and slightly changed from shell
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* this should replace the icon extraction code in shell32 and shell16 once
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* it needs a serious test for compliance with the native API
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*
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* Copyright 2000 Juergen Schmied
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "config.h"
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#include <string.h>
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#include <stdlib.h> /* abs() */
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#include <sys/types.h>
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#include <unistd.h>
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#include "winbase.h"
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#include "windef.h"
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#include "winerror.h"
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#include "wingdi.h"
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#include "winuser.h"
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#include "wine/winbase16.h"
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#include "cursoricon.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(icon);
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#include "pshpack1.h"
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typedef struct
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{
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BYTE bWidth; /* Width, in pixels, of the image */
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BYTE bHeight; /* Height, in pixels, of the image */
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BYTE bColorCount; /* Number of colors in image (0 if >=8bpp) */
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BYTE bReserved; /* Reserved ( must be 0) */
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WORD wPlanes; /* Color Planes */
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WORD wBitCount; /* Bits per pixel */
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DWORD dwBytesInRes; /* How many bytes in this resource? */
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DWORD dwImageOffset; /* Where in the file is this image? */
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} icoICONDIRENTRY, *LPicoICONDIRENTRY;
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typedef struct
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{
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WORD idReserved; /* Reserved (must be 0) */
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WORD idType; /* Resource Type (RES_ICON or RES_CURSOR) */
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WORD idCount; /* How many images */
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icoICONDIRENTRY idEntries[1]; /* An entry for each image (idCount of 'em) */
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} icoICONDIR, *LPicoICONDIR;
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#include "poppack.h"
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#if 0
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static void dumpIcoDirEnty ( LPicoICONDIRENTRY entry )
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{
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TRACE("width = 0x%08x height = 0x%08x\n", entry->bWidth, entry->bHeight);
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TRACE("colors = 0x%08x planes = 0x%08x\n", entry->bColorCount, entry->wPlanes);
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TRACE("bitcount = 0x%08x bytesinres = 0x%08lx offset = 0x%08lx\n",
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entry->wBitCount, entry->dwBytesInRes, entry->dwImageOffset);
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}
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static void dumpIcoDir ( LPicoICONDIR entry )
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{
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TRACE("type = 0x%08x count = 0x%08x\n", entry->idType, entry->idCount);
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}
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#endif
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/**********************************************************************
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* find_entry_by_id
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*
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* Find an entry by id in a resource directory
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* Copied from loader/pe_resource.c (FIXME: should use exported resource functions)
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*/
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static const IMAGE_RESOURCE_DIRECTORY *find_entry_by_id( const IMAGE_RESOURCE_DIRECTORY *dir,
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WORD id, const void *root )
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{
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const IMAGE_RESOURCE_DIRECTORY_ENTRY *entry;
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int min, max, pos;
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entry = (const IMAGE_RESOURCE_DIRECTORY_ENTRY *)(dir + 1);
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min = dir->NumberOfNamedEntries;
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max = min + dir->NumberOfIdEntries - 1;
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while (min <= max)
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{
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pos = (min + max) / 2;
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if (entry[pos].u1.s2.Id == id)
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return (IMAGE_RESOURCE_DIRECTORY *)((char *)root + entry[pos].u2.s3.OffsetToDirectory);
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if (entry[pos].u1.s2.Id > id) max = pos - 1;
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else min = pos + 1;
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}
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return NULL;
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}
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/**********************************************************************
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* find_entry_default
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*
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* Find a default entry in a resource directory
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* Copied from loader/pe_resource.c (FIXME: should use exported resource functions)
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*/
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static const IMAGE_RESOURCE_DIRECTORY *find_entry_default( const IMAGE_RESOURCE_DIRECTORY *dir,
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const void *root )
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{
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const IMAGE_RESOURCE_DIRECTORY_ENTRY *entry;
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entry = (const IMAGE_RESOURCE_DIRECTORY_ENTRY *)(dir + 1);
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return (IMAGE_RESOURCE_DIRECTORY *)((char *)root + entry->u2.s3.OffsetToDirectory);
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}
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/*************************************************************************
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* USER32_GetResourceTable
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*/
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static DWORD USER32_GetResourceTable(LPBYTE peimage,DWORD pesize,LPBYTE *retptr)
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{
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IMAGE_DOS_HEADER * mz_header;
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TRACE("%p %p\n", peimage, retptr);
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*retptr = NULL;
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mz_header = (IMAGE_DOS_HEADER*) peimage;
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if (mz_header->e_magic != IMAGE_DOS_SIGNATURE)
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{
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if (mz_header->e_cblp == 1) /* .ICO file ? */
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{
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*retptr = (LPBYTE)-1; /* ICONHEADER.idType, must be 1 */
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return 1;
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}
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else
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return 0; /* failed */
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}
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if (mz_header->e_lfanew >= pesize) {
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return 0; /* failed, happens with PKZIP DOS Exes for instance. */
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}
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if (*((DWORD*)(peimage + mz_header->e_lfanew)) == IMAGE_NT_SIGNATURE )
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return IMAGE_NT_SIGNATURE;
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if (*((WORD*)(peimage + mz_header->e_lfanew)) == IMAGE_OS2_SIGNATURE )
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{
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IMAGE_OS2_HEADER * ne_header;
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ne_header = (IMAGE_OS2_HEADER*)(peimage + mz_header->e_lfanew);
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if (ne_header->ne_magic != IMAGE_OS2_SIGNATURE)
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return 0;
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if( (ne_header->ne_restab - ne_header->ne_rsrctab) <= sizeof(NE_TYPEINFO) )
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*retptr = (LPBYTE)-1;
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else
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*retptr = peimage + mz_header->e_lfanew + ne_header->ne_rsrctab;
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return IMAGE_OS2_SIGNATURE;
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}
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return 0; /* failed */
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}
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/*************************************************************************
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* USER32_LoadResource
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*/
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static BYTE * USER32_LoadResource( LPBYTE peimage, NE_NAMEINFO* pNInfo, WORD sizeShift, ULONG *uSize)
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{
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TRACE("%p %p 0x%08x\n", peimage, pNInfo, sizeShift);
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*uSize = (DWORD)pNInfo->length << sizeShift;
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return peimage + ((DWORD)pNInfo->offset << sizeShift);
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}
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/*************************************************************************
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* ICO_LoadIcon
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*/
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static BYTE * ICO_LoadIcon( LPBYTE peimage, LPicoICONDIRENTRY lpiIDE, ULONG *uSize)
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{
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TRACE("%p %p\n", peimage, lpiIDE);
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*uSize = lpiIDE->dwBytesInRes;
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return peimage + lpiIDE->dwImageOffset;
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}
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/*************************************************************************
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* ICO_GetIconDirectory
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*
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* Reads .ico file and build phony ICONDIR struct
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* see http://www.microsoft.com/win32dev/ui/icons.htm
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*/
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#define HEADER_SIZE (sizeof(CURSORICONDIR) - sizeof (CURSORICONDIRENTRY))
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#define HEADER_SIZE_FILE (sizeof(icoICONDIR) - sizeof (icoICONDIRENTRY))
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static BYTE * ICO_GetIconDirectory( LPBYTE peimage, LPicoICONDIR* lplpiID, ULONG *uSize )
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{
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CURSORICONDIR * lpcid; /* icon resource in resource-dir format */
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CURSORICONDIR * lpID; /* icon resource in resource format */
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int i;
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TRACE("%p %p\n", peimage, lplpiID);
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lpcid = (CURSORICONDIR*)peimage;
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if( lpcid->idReserved || (lpcid->idType != 1) || (!lpcid->idCount) )
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return 0;
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/* allocate the phony ICONDIR structure */
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*uSize = lpcid->idCount * sizeof(CURSORICONDIRENTRY) + HEADER_SIZE;
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if( (lpID = (CURSORICONDIR*)HeapAlloc(GetProcessHeap(),0, *uSize) ))
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{
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/* copy the header */
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lpID->idReserved = lpcid->idReserved;
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lpID->idType = lpcid->idType;
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lpID->idCount = lpcid->idCount;
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/* copy the entries */
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for( i=0; i < lpcid->idCount; i++ )
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{
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memcpy((void*)&(lpID->idEntries[i]),(void*)&(lpcid->idEntries[i]), sizeof(CURSORICONDIRENTRY) - 2);
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lpID->idEntries[i].wResId = i;
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}
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*lplpiID = (LPicoICONDIR)peimage;
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return (BYTE *)lpID;
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}
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return 0;
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}
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/*************************************************************************
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* ICO_ExtractIconExW [internal]
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*
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* NOTES
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* nIcons = 0: returns number of Icons in file
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*
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* returns
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* failure:0; success: icon handle or nr of icons (nIconIndex-1)
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*/
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static HRESULT ICO_ExtractIconExW(
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LPCWSTR lpszExeFileName,
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HICON * RetPtr,
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INT nIconIndex,
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UINT nIcons,
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UINT cxDesired,
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UINT cyDesired )
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{
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HGLOBAL hRet = E_FAIL;
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LPBYTE pData;
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DWORD sig;
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HFILE hFile;
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UINT16 iconDirCount = 0,iconCount = 0;
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LPBYTE peimage;
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HANDLE fmapping;
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ULONG uSize;
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DWORD fsizeh,fsizel;
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TRACE("(file %s,start %d,extract %d\n", debugstr_w(lpszExeFileName), nIconIndex, nIcons);
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hFile = CreateFileW( lpszExeFileName, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0 );
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if (hFile == INVALID_HANDLE_VALUE) return hRet;
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fsizel = GetFileSize(hFile,&fsizeh);
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/* Map the file */
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fmapping = CreateFileMappingA( hFile, NULL, PAGE_READONLY | SEC_COMMIT, 0, 0, NULL );
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CloseHandle( hFile );
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if (!fmapping)
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{
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WARN("CreateFileMapping error %ld\n", GetLastError() );
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return hRet;
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}
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if ( !(peimage = MapViewOfFile(fmapping,FILE_MAP_READ,0,0,0)))
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{
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WARN("MapViewOfFile error %ld\n", GetLastError() );
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CloseHandle( fmapping );
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return hRet;
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}
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CloseHandle( fmapping );
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sig = USER32_GetResourceTable(peimage,fsizel,&pData);
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/* ico file */
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if( sig==IMAGE_OS2_SIGNATURE || sig==1 ) /* .ICO file */
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{
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BYTE *pCIDir = 0;
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NE_TYPEINFO *pTInfo = (NE_TYPEINFO*)(pData + 2);
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NE_NAMEINFO *pIconStorage = NULL;
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NE_NAMEINFO *pIconDir = NULL;
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LPicoICONDIR lpiID = NULL;
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TRACE("-- OS2/icon Signature (0x%08lx)\n", sig);
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if( pData == (BYTE*)-1 )
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{
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/* FIXME: pCIDir is allocated on the heap - memory leak */
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pCIDir = ICO_GetIconDirectory(peimage, &lpiID, &uSize); /* check for .ICO file */
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if( pCIDir )
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{
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iconDirCount = 1; iconCount = lpiID->idCount;
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TRACE("-- icon found %p 0x%08lx 0x%08x 0x%08x\n", pCIDir, uSize, iconDirCount, iconCount);
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}
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}
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else while( pTInfo->type_id && !(pIconStorage && pIconDir) )
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{
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if( pTInfo->type_id == NE_RSCTYPE_GROUP_ICON ) /* find icon directory and icon repository */
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{
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iconDirCount = pTInfo->count;
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pIconDir = ((NE_NAMEINFO*)(pTInfo + 1));
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TRACE("\tfound directory - %i icon families\n", iconDirCount);
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}
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if( pTInfo->type_id == NE_RSCTYPE_ICON )
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{
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iconCount = pTInfo->count;
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pIconStorage = ((NE_NAMEINFO*)(pTInfo + 1));
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TRACE("\ttotal icons - %i\n", iconCount);
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}
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pTInfo = (NE_TYPEINFO *)((char*)(pTInfo+1)+pTInfo->count*sizeof(NE_NAMEINFO));
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}
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if( (pIconStorage && pIconDir) || lpiID ) /* load resources and create icons */
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{
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if( nIcons == 0 )
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{
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hRet = iconDirCount;
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}
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else if( nIconIndex < iconDirCount )
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{
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UINT16 i, icon;
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if( nIcons > iconDirCount - nIconIndex )
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nIcons = iconDirCount - nIconIndex;
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for( i = nIconIndex; i < nIconIndex + nIcons; i++ )
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{
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/* .ICO files have only one icon directory */
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if( lpiID == NULL ) /* *.ico */
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pCIDir = USER32_LoadResource( peimage, pIconDir + i, *(WORD*)pData, &uSize );
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RetPtr[i-nIconIndex] = LookupIconIdFromDirectoryEx( pCIDir, TRUE, cxDesired, cyDesired, 0);
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}
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for( icon = nIconIndex; icon < nIconIndex + nIcons; icon++ )
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{
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pCIDir = NULL;
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if( lpiID )
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pCIDir = ICO_LoadIcon( peimage, lpiID->idEntries + RetPtr[icon-nIconIndex], &uSize);
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else
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for( i = 0; i < iconCount; i++ )
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if( pIconStorage[i].id == (RetPtr[icon-nIconIndex] | 0x8000) )
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pCIDir = USER32_LoadResource( peimage, pIconStorage + i,*(WORD*)pData, &uSize );
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if( pCIDir )
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RetPtr[icon-nIconIndex] = (HICON) CreateIconFromResourceEx(pCIDir,uSize,TRUE,0x00030000, cxDesired, cyDesired, LR_DEFAULTCOLOR);
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else
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RetPtr[icon-nIconIndex] = 0;
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}
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hRet = S_OK;
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}
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}
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}
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/* end ico file */
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/* exe/dll */
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else if( sig == IMAGE_NT_SIGNATURE )
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{
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LPBYTE idata,igdata;
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PIMAGE_DOS_HEADER dheader;
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PIMAGE_NT_HEADERS pe_header;
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PIMAGE_SECTION_HEADER pe_sections;
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const IMAGE_RESOURCE_DIRECTORY *rootresdir,*iconresdir,*icongroupresdir;
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const IMAGE_RESOURCE_DATA_ENTRY *idataent,*igdataent;
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const IMAGE_RESOURCE_DIRECTORY_ENTRY *xresent;
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int i,j;
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dheader = (PIMAGE_DOS_HEADER)peimage;
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pe_header = (PIMAGE_NT_HEADERS)(peimage+dheader->e_lfanew); /* it is a pe header, USER32_GetResourceTable checked that */
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pe_sections = (PIMAGE_SECTION_HEADER)(((char*)pe_header)+sizeof(*pe_header)); /* probably makes problems with short PE headers...*/
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rootresdir = NULL;
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/* search for the root resource directory */
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for (i=0;i<pe_header->FileHeader.NumberOfSections;i++)
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{
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if (pe_sections[i].Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA)
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continue;
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if (fsizel < pe_sections[i].PointerToRawData+pe_sections[i].SizeOfRawData) {
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FIXME("File %s too short (section is at %ld bytes, real size is %ld)\n",
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debugstr_w(lpszExeFileName),
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pe_sections[i].PointerToRawData+pe_sections[i].SizeOfRawData,
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fsizel
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);
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goto end;
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}
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/* FIXME: doesn't work when the resources are not in a separate section */
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if (pe_sections[i].VirtualAddress == pe_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress)
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{
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rootresdir = (PIMAGE_RESOURCE_DIRECTORY)(peimage+pe_sections[i].PointerToRawData);
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break;
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}
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}
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if (!rootresdir)
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{
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WARN("haven't found section for resource directory.\n");
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goto end; /* failure */
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}
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/* search for the group icon directory */
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if (!(icongroupresdir = find_entry_by_id(rootresdir, LOWORD(RT_GROUP_ICONW), rootresdir)))
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{
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WARN("No Icongroupresourcedirectory!\n");
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goto end; /* failure */
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}
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iconDirCount = icongroupresdir->NumberOfNamedEntries + icongroupresdir->NumberOfIdEntries;
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/* only number of icons requested */
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if( nIcons == 0 )
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{
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hRet = iconDirCount;
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goto end; /* success */
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}
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if( nIconIndex < 0 )
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{
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/* search resource id */
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int n = 0;
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int iId = abs(nIconIndex);
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PIMAGE_RESOURCE_DIRECTORY_ENTRY xprdeTmp = (PIMAGE_RESOURCE_DIRECTORY_ENTRY)(icongroupresdir+1);
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while(n<iconDirCount && xprdeTmp)
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{
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if(xprdeTmp->u1.s2.Id == iId)
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{
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nIconIndex = n;
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break;
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}
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n++;
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xprdeTmp++;
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}
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if (nIconIndex < 0)
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{
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WARN("resource id %d not found\n", iId);
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goto end; /* failure */
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}
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}
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else
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{
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/* check nIconIndex to be in range */
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if (nIconIndex >= iconDirCount)
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{
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WARN("nIconIndex %d is larger than iconDirCount %d\n",nIconIndex,iconDirCount);
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goto end; /* failure */
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}
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}
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/* assure we don't get too much */
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if( nIcons > iconDirCount - nIconIndex )
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nIcons = iconDirCount - nIconIndex;
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/* starting from specified index */
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xresent = (PIMAGE_RESOURCE_DIRECTORY_ENTRY)(icongroupresdir+1) + nIconIndex;
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for (i=0; i < nIcons; i++,xresent++)
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{
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const IMAGE_RESOURCE_DIRECTORY *resdir;
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/* go down this resource entry, name */
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resdir = (PIMAGE_RESOURCE_DIRECTORY)((DWORD)rootresdir+(xresent->u2.s3.OffsetToDirectory));
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/* default language (0) */
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resdir = find_entry_default(resdir,rootresdir);
|
|
igdataent = (PIMAGE_RESOURCE_DATA_ENTRY)resdir;
|
|
|
|
/* lookup address in mapped image for virtual address */
|
|
igdata = NULL;
|
|
|
|
for (j=0;j<pe_header->FileHeader.NumberOfSections;j++)
|
|
{
|
|
if (igdataent->OffsetToData < pe_sections[j].VirtualAddress)
|
|
continue;
|
|
if (igdataent->OffsetToData+igdataent->Size > pe_sections[j].VirtualAddress+pe_sections[j].SizeOfRawData)
|
|
continue;
|
|
|
|
if (igdataent->OffsetToData-pe_sections[j].VirtualAddress+pe_sections[j].PointerToRawData+igdataent->Size > fsizel) {
|
|
FIXME("overflow in PE lookup (%s has len %ld, have offset %ld), short file?\n",debugstr_w(lpszExeFileName),fsizel,igdataent->OffsetToData-pe_sections[j].VirtualAddress+pe_sections[j].PointerToRawData+igdataent->Size);
|
|
goto end; /* failure */
|
|
}
|
|
igdata = peimage+(igdataent->OffsetToData-pe_sections[j].VirtualAddress+pe_sections[j].PointerToRawData);
|
|
}
|
|
|
|
if (!igdata)
|
|
{
|
|
FIXME("no matching real address for icongroup!\n");
|
|
goto end; /* failure */
|
|
}
|
|
RetPtr[i] = (HICON)LookupIconIdFromDirectoryEx(igdata, TRUE, cxDesired, cyDesired, LR_DEFAULTCOLOR);
|
|
}
|
|
|
|
if (!(iconresdir=find_entry_by_id(rootresdir,LOWORD(RT_ICONW),rootresdir)))
|
|
{
|
|
WARN("No Iconresourcedirectory!\n");
|
|
goto end; /* failure */
|
|
}
|
|
|
|
for (i=0; i<nIcons; i++)
|
|
{
|
|
const IMAGE_RESOURCE_DIRECTORY *xresdir;
|
|
xresdir = find_entry_by_id(iconresdir,RetPtr[i],rootresdir);
|
|
xresdir = find_entry_default(xresdir,rootresdir);
|
|
idataent = (PIMAGE_RESOURCE_DATA_ENTRY)xresdir;
|
|
idata = NULL;
|
|
|
|
/* map virtual to address in image */
|
|
for (j=0;j<pe_header->FileHeader.NumberOfSections;j++)
|
|
{
|
|
if (idataent->OffsetToData < pe_sections[j].VirtualAddress)
|
|
continue;
|
|
if (idataent->OffsetToData+idataent->Size > pe_sections[j].VirtualAddress+pe_sections[j].SizeOfRawData)
|
|
continue;
|
|
idata = peimage+(idataent->OffsetToData-pe_sections[j].VirtualAddress+pe_sections[j].PointerToRawData);
|
|
}
|
|
if (!idata)
|
|
{
|
|
WARN("no matching real address found for icondata!\n");
|
|
RetPtr[i]=0;
|
|
continue;
|
|
}
|
|
RetPtr[i] = (HICON) CreateIconFromResourceEx(idata,idataent->Size,TRUE,0x00030000, cxDesired, cyDesired, LR_DEFAULTCOLOR);
|
|
}
|
|
hRet = S_OK; /* return first icon */
|
|
} /* if(sig == IMAGE_NT_SIGNATURE) */
|
|
|
|
end: UnmapViewOfFile(peimage); /* success */
|
|
return hRet;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* PrivateExtractIconsW [USER32.@]
|
|
*
|
|
* NOTES
|
|
* nIndex = 1: a small and a large icon are extracted.
|
|
* the higher word of sizeXY contains the size of the small icon, the lower
|
|
* word the size of the big icon. phicon points to HICON[2].
|
|
*
|
|
* RETURNS
|
|
* nIcons > 0: HRESULT
|
|
* nIcons = 0: the number of icons
|
|
*/
|
|
|
|
HRESULT WINAPI PrivateExtractIconsW (
|
|
LPCWSTR lpwstrFile,
|
|
int nIndex,
|
|
DWORD sizeX,
|
|
DWORD sizeY,
|
|
HICON * phicon, /* [???] NOTE: HICON* */
|
|
DWORD w, /* [in] NOTE: 0 */
|
|
UINT nIcons,
|
|
DWORD y ) /* [in] NOTE: 0x80 maybe LR_* constant */
|
|
{
|
|
DWORD ret;
|
|
TRACE("%s 0x%08x 0x%08lx 0x%08lx %p 0x%08lx 0x%08x 0x%08lx\n",
|
|
debugstr_w(lpwstrFile),nIndex, sizeX ,sizeY ,phicon,w,nIcons,y );
|
|
|
|
if ((nIcons == 2) && HIWORD(sizeX) && HIWORD(sizeY))
|
|
{
|
|
ret = ICO_ExtractIconExW(lpwstrFile, phicon, nIndex, 1, sizeX & 0xffff, sizeY & 0xffff );
|
|
if (!SUCCEEDED(ret)) return ret;
|
|
ret = ICO_ExtractIconExW(lpwstrFile, phicon+1, nIndex, 1, (sizeX>>16) & 0xffff, (sizeY>>16) & 0xffff );
|
|
} else
|
|
ret = ICO_ExtractIconExW(lpwstrFile, phicon, nIndex, nIcons, sizeX & 0xffff, sizeY & 0xffff );
|
|
return ret;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* PrivateExtractIconsA [USER32.@]
|
|
*/
|
|
|
|
HRESULT WINAPI PrivateExtractIconsA (
|
|
LPCSTR lpstrFile,
|
|
INT nIndex,
|
|
DWORD sizeX,
|
|
DWORD sizeY,
|
|
HICON * phicon,
|
|
DWORD w, /* [in] NOTE: 0 */
|
|
UINT nIcons,
|
|
DWORD y ) /* [in] NOTE: 0x80 */
|
|
{
|
|
DWORD ret;
|
|
INT len = MultiByteToWideChar( CP_ACP, 0, lpstrFile, -1, NULL, 0 );
|
|
LPWSTR lpwstrFile = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
|
|
|
|
MultiByteToWideChar( CP_ACP, 0, lpstrFile, -1, lpwstrFile, len );
|
|
ret = PrivateExtractIconsW(
|
|
lpwstrFile, nIndex, sizeX, sizeY, phicon, w, nIcons, y
|
|
);
|
|
|
|
HeapFree(GetProcessHeap(), 0, lpwstrFile);
|
|
return ret;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* PrivateExtractIconExW [USER32.@]
|
|
* NOTES
|
|
* if nIcons = -1 it returns the number of icons in any case !!!
|
|
*/
|
|
HRESULT WINAPI PrivateExtractIconExW (
|
|
LPCWSTR lpwstrFile,
|
|
DWORD nIndex,
|
|
HICON * phIconLarge,
|
|
HICON * phIconSmall,
|
|
UINT nIcons )
|
|
{
|
|
DWORD cyicon, cysmicon, cxicon, cxsmicon;
|
|
HRESULT ret = 0;
|
|
|
|
TRACE("%s 0x%08lx %p %p 0x%08x\n",
|
|
debugstr_w(lpwstrFile),nIndex,phIconLarge, phIconSmall, nIcons);
|
|
|
|
if (nIndex == 1 && phIconSmall && phIconLarge)
|
|
{
|
|
HICON hIcon[2];
|
|
cxicon = GetSystemMetrics(SM_CXICON);
|
|
cyicon = GetSystemMetrics(SM_CYICON);
|
|
cxsmicon = GetSystemMetrics(SM_CXSMICON);
|
|
cysmicon = GetSystemMetrics(SM_CYSMICON);
|
|
|
|
ret = PrivateExtractIconsW ( lpwstrFile, nIndex, cxicon | (cxsmicon<<16), cyicon | (cysmicon<<16),
|
|
(HICON*) &hIcon, 0, 2, 0 );
|
|
*phIconLarge = hIcon[0];
|
|
*phIconSmall = hIcon[1];
|
|
return ret;
|
|
}
|
|
|
|
if (nIndex != -1)
|
|
{
|
|
if (phIconSmall)
|
|
{
|
|
/* extract n small icons */
|
|
cxsmicon = GetSystemMetrics(SM_CXSMICON);
|
|
cysmicon = GetSystemMetrics(SM_CYSMICON);
|
|
ret = PrivateExtractIconsW ( lpwstrFile, nIndex, cxsmicon, cysmicon, phIconSmall, 0, nIcons, 0 );
|
|
}
|
|
if (phIconLarge )
|
|
{
|
|
/* extract n large icons */
|
|
cxicon = GetSystemMetrics(SM_CXICON);
|
|
cyicon = GetSystemMetrics(SM_CYICON);
|
|
ret = PrivateExtractIconsW ( lpwstrFile, nIndex, cxicon, cyicon, phIconLarge, 0, nIcons, 0 );
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/* get the number of icons */
|
|
return PrivateExtractIconsW ( lpwstrFile, 0, 0, 0, 0, 0, 0, 0 );
|
|
}
|
|
|
|
/***********************************************************************
|
|
* PrivateExtractIconExA [USER32.@]
|
|
*/
|
|
HRESULT WINAPI PrivateExtractIconExA (
|
|
LPCSTR lpstrFile,
|
|
DWORD nIndex,
|
|
HICON * phIconLarge,
|
|
HICON * phIconSmall,
|
|
UINT nIcons )
|
|
{
|
|
DWORD ret;
|
|
INT len = MultiByteToWideChar( CP_ACP, 0, lpstrFile, -1, NULL, 0 );
|
|
LPWSTR lpwstrFile = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
|
|
|
|
TRACE("%s 0x%08lx %p %p 0x%08x\n", lpstrFile, nIndex, phIconLarge, phIconSmall, nIcons);
|
|
|
|
MultiByteToWideChar( CP_ACP, 0, lpstrFile, -1, lpwstrFile, len );
|
|
ret = PrivateExtractIconExW(lpwstrFile,nIndex,phIconLarge, phIconSmall, nIcons);
|
|
HeapFree(GetProcessHeap(), 0, lpwstrFile);
|
|
return ret;
|
|
}
|
|
|