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703 lines
18 KiB
C
703 lines
18 KiB
C
/*
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* Enhanced metafile functions
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* Copyright 1998 Douglas Ridgway
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* 1999 Huw D M Davies
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*/
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#include <string.h>
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#include <assert.h>
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#include "winbase.h"
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#include "wingdi.h"
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#include "wine/winestring.h"
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#include "winerror.h"
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#include "enhmetafile.h"
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#include "debugtools.h"
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#include "heap.h"
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DEFAULT_DEBUG_CHANNEL(enhmetafile)
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/****************************************************************************
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* EMF_Create_HENHMETAFILE
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*/
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HENHMETAFILE EMF_Create_HENHMETAFILE(ENHMETAHEADER *emh, HFILE hFile, HANDLE
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hMapping )
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{
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HENHMETAFILE hmf = GDI_AllocObject( sizeof(ENHMETAFILEOBJ),
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ENHMETAFILE_MAGIC );
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ENHMETAFILEOBJ *metaObj = (ENHMETAFILEOBJ *)GDI_HEAP_LOCK( hmf );
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metaObj->emh = emh;
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metaObj->hFile = hFile;
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metaObj->hMapping = hMapping;
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GDI_HEAP_UNLOCK( hmf );
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return hmf;
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}
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/****************************************************************************
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* EMF_Delete_HENHMETAFILE
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*/
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static BOOL EMF_Delete_HENHMETAFILE( HENHMETAFILE hmf )
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{
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ENHMETAFILEOBJ *metaObj = (ENHMETAFILEOBJ *)GDI_GetObjPtr( hmf,
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ENHMETAFILE_MAGIC );
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if(!metaObj) return FALSE;
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if(metaObj->hMapping) {
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UnmapViewOfFile( metaObj->emh );
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CloseHandle( metaObj->hMapping );
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CloseHandle( metaObj->hFile );
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} else
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HeapFree( SystemHeap, 0, metaObj->emh );
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return GDI_FreeObject( hmf );
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}
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/******************************************************************
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* EMF_GetEnhMetaHeader
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*
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* Returns ptr to ENHMETAHEADER associated with HENHMETAFILE
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* Should be followed by call to EMF_ReleaseEnhMetaHeader
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*/
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static ENHMETAHEADER *EMF_GetEnhMetaHeader( HENHMETAFILE hmf )
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{
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ENHMETAFILEOBJ *metaObj = (ENHMETAFILEOBJ *)GDI_GetObjPtr( hmf,
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ENHMETAFILE_MAGIC );
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TRACE("hmf %04x -> enhmetaObj %p\n", hmf, metaObj);
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return metaObj ? metaObj->emh : NULL;
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}
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/******************************************************************
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* EMF_ReleaseEnhMetaHeader
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*
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* Releases ENHMETAHEADER associated with HENHMETAFILE
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*/
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static BOOL EMF_ReleaseEnhMetaHeader( HENHMETAFILE hmf )
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{
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return GDI_HEAP_UNLOCK( hmf );
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}
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/*****************************************************************************
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* EMF_GetEnhMetaFile
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*
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*/
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static HENHMETAFILE EMF_GetEnhMetaFile( HFILE hFile )
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{
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ENHMETAHEADER *emh;
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HANDLE hMapping;
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hMapping = CreateFileMappingA( hFile, NULL, PAGE_READONLY, 0, 0, NULL );
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emh = MapViewOfFile( hMapping, FILE_MAP_READ, 0, 0, 0 );
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if (emh->iType != EMR_HEADER || emh->dSignature != ENHMETA_SIGNATURE) {
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WARN("Invalid emf header type 0x%08lx sig 0x%08lx.\n",
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emh->iType, emh->dSignature);
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UnmapViewOfFile( emh );
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CloseHandle( hMapping );
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return 0;
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}
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return EMF_Create_HENHMETAFILE( emh, hFile, hMapping );
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}
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/*****************************************************************************
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* GetEnhMetaFileA (GDI32.174)
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*
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*
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*/
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HENHMETAFILE WINAPI GetEnhMetaFileA(
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LPCSTR lpszMetaFile /* filename of enhanced metafile */
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)
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{
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HENHMETAFILE hmf;
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HFILE hFile;
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hFile = CreateFileA(lpszMetaFile, GENERIC_READ, FILE_SHARE_READ, 0,
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OPEN_EXISTING, 0, 0);
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if (hFile == INVALID_HANDLE_VALUE) {
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WARN("could not open %s\n", lpszMetaFile);
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return 0;
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}
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hmf = EMF_GetEnhMetaFile( hFile );
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if(!hmf)
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CloseHandle( hFile );
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return hmf;
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}
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/*****************************************************************************
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* GetEnhMetaFile32W (GDI32.180)
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*/
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HENHMETAFILE WINAPI GetEnhMetaFileW(
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LPCWSTR lpszMetaFile) /* filename of enhanced metafile */
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{
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HENHMETAFILE hmf;
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HFILE hFile;
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hFile = CreateFileW(lpszMetaFile, GENERIC_READ, FILE_SHARE_READ, 0,
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OPEN_EXISTING, 0, 0);
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if (hFile == INVALID_HANDLE_VALUE) {
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WARN("could not open %s\n", debugstr_w(lpszMetaFile));
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return 0;
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}
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hmf = EMF_GetEnhMetaFile( hFile );
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if(!hmf)
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CloseHandle( hFile );
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return hmf;
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}
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/*****************************************************************************
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* GetEnhMetaFileHeader (GDI32.178)
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*
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* If _buf_ is NULL, returns the size of buffer required.
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* Otherwise, copy up to _bufsize_ bytes of enhanced metafile header into
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* _buf.
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*/
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UINT WINAPI GetEnhMetaFileHeader(
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HENHMETAFILE hmf, /* enhanced metafile */
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UINT bufsize, /* size of buffer */
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LPENHMETAHEADER buf /* buffer */
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)
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{
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LPENHMETAHEADER emh;
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if (!buf) return sizeof(ENHMETAHEADER);
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emh = EMF_GetEnhMetaHeader(hmf);
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if(!emh) return FALSE;
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memmove(buf, emh, MIN(sizeof(ENHMETAHEADER), bufsize));
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EMF_ReleaseEnhMetaHeader(hmf);
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return MIN(sizeof(ENHMETAHEADER), bufsize);
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}
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/*****************************************************************************
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* GetEnhMetaFileDescription32A (GDI32.176)
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*/
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UINT WINAPI GetEnhMetaFileDescriptionA(
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HENHMETAFILE hmf, /* enhanced metafile */
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UINT size, /* size of buf */
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LPSTR buf /* buffer to receive description */
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)
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{
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LPENHMETAHEADER emh = EMF_GetEnhMetaHeader(hmf);
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INT first;
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if(!emh) return FALSE;
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if(emh->nDescription == 0 || emh->offDescription == 0) {
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EMF_ReleaseEnhMetaHeader(hmf);
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return 0;
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}
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if (!buf || !size ) {
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EMF_ReleaseEnhMetaHeader(hmf);
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return emh->nDescription;
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}
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first = lstrlenW( (WCHAR *) ((char *) emh + emh->offDescription));
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lstrcpynWtoA(buf, (WCHAR *) ((char *) emh + emh->offDescription), size);
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buf += first + 1;
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lstrcpynWtoA(buf, (WCHAR *) ((char *) emh + emh->offDescription+2*(first+1)),
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size - first - 1);
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EMF_ReleaseEnhMetaHeader(hmf);
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return MIN(size, emh->nDescription);
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}
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/*****************************************************************************
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* GetEnhMetaFileDescription32W (GDI32.177)
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*
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* Copies the description string of an enhanced metafile into a buffer
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* _buf_.
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*
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* If _buf_ is NULL, returns size of _buf_ required. Otherwise, returns
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* number of characters copied.
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*/
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UINT WINAPI GetEnhMetaFileDescriptionW(
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HENHMETAFILE hmf, /* enhanced metafile */
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UINT size, /* size of buf */
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LPWSTR buf /* buffer to receive description */
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)
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{
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LPENHMETAHEADER emh = EMF_GetEnhMetaHeader(hmf);
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if(!emh) return FALSE;
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if(emh->nDescription == 0 || emh->offDescription == 0) {
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EMF_ReleaseEnhMetaHeader(hmf);
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return 0;
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}
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if (!buf || !size ) {
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EMF_ReleaseEnhMetaHeader(hmf);
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return emh->nDescription;
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}
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memmove(buf, (char *) emh + emh->offDescription,
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MIN(size,emh->nDescription));
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EMF_ReleaseEnhMetaHeader(hmf);
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return MIN(size, emh->nDescription);
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}
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/****************************************************************************
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* SetEnhMetaFileBits (GDI32.315)
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*
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* Creates an enhanced metafile by copying _bufsize_ bytes from _buf_.
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*/
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HENHMETAFILE WINAPI SetEnhMetaFileBits(UINT bufsize, const BYTE *buf)
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{
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ENHMETAHEADER *emh = HeapAlloc( SystemHeap, 0, bufsize );
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memmove(emh, buf, bufsize);
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return EMF_Create_HENHMETAFILE( emh, 0, 0 );
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}
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/*****************************************************************************
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* GetEnhMetaFileBits (GDI32.175)
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*
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*/
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UINT WINAPI GetEnhMetaFileBits(
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HENHMETAFILE hmf,
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UINT bufsize,
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LPBYTE buf
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) {
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return 0;
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}
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/*****************************************************************************
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* PlayEnhMetaFileRecord (GDI32.264)
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*
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* Render a single enhanced metafile record in the device context hdc.
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*
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* RETURNS
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* TRUE on success, FALSE on error.
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* BUGS
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* Many unimplemented records.
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*/
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BOOL WINAPI PlayEnhMetaFileRecord(
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HDC hdc, /* device context in which to render EMF record */
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LPHANDLETABLE handletable, /* array of handles to be used in rendering record */
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const ENHMETARECORD *mr, /* EMF record to render */
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UINT handles /* size of handle array */
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)
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{
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int type;
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TRACE(
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"hdc = %08x, handletable = %p, record = %p, numHandles = %d\n",
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hdc, handletable, mr, handles);
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if (!mr) return FALSE;
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type = mr->iType;
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TRACE(" type=%d\n", type);
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switch(type)
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{
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case EMR_HEADER:
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{
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/* ENHMETAHEADER *h = (LPENHMETAHEADER) mr; */
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break;
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}
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case EMR_EOF:
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break;
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case EMR_GDICOMMENT:
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/* application defined and processed */
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break;
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case EMR_SETMAPMODE:
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{
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DWORD mode = mr->dParm[0];
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SetMapMode(hdc, mode);
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break;
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}
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case EMR_SETBKMODE:
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{
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DWORD mode = mr->dParm[0];
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SetBkMode(hdc, mode);
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break;
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}
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case EMR_SETBKCOLOR:
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{
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DWORD mode = mr->dParm[0];
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SetBkColor(hdc, mode);
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break;
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}
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case EMR_SETPOLYFILLMODE:
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{
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DWORD mode = mr->dParm[0];
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SetPolyFillMode(hdc, mode);
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break;
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}
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case EMR_SETROP2:
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{
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DWORD mode = mr->dParm[0];
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SetROP2(hdc, mode);
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break;
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}
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case EMR_SETSTRETCHBLTMODE:
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{
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DWORD mode = mr->dParm[0];
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SetStretchBltMode(hdc, mode);
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break;
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}
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case EMR_SETTEXTALIGN:
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{
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DWORD align = mr->dParm[0];
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SetTextAlign(hdc, align);
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break;
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}
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case EMR_SETTEXTCOLOR:
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{
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DWORD color = mr->dParm[0];
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SetTextColor(hdc, color);
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break;
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}
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case EMR_SAVEDC:
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{
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SaveDC(hdc);
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break;
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}
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case EMR_RESTOREDC:
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{
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RestoreDC(hdc, mr->dParm[0]);
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break;
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}
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case EMR_INTERSECTCLIPRECT:
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{
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INT left = mr->dParm[0], top = mr->dParm[1], right = mr->dParm[2],
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bottom = mr->dParm[3];
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IntersectClipRect(hdc, left, top, right, bottom);
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break;
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}
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case EMR_SELECTOBJECT:
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{
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DWORD obj = mr->dParm[0];
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SelectObject(hdc, (handletable->objectHandle)[obj]);
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break;
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}
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case EMR_DELETEOBJECT:
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{
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DWORD obj = mr->dParm[0];
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DeleteObject( (handletable->objectHandle)[obj]);
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(handletable->objectHandle)[obj] = 0;
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break;
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}
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case EMR_SETWINDOWORGEX:
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{
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DWORD x = mr->dParm[0], y = mr->dParm[1];
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SetWindowOrgEx(hdc, x, y, NULL);
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break;
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}
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case EMR_SETWINDOWEXTEX:
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{
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DWORD x = mr->dParm[0], y = mr->dParm[1];
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SetWindowExtEx(hdc, x, y, NULL);
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break;
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}
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case EMR_SETVIEWPORTORGEX:
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{
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DWORD x = mr->dParm[0], y = mr->dParm[1];
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SetViewportOrgEx(hdc, x, y, NULL);
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break;
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}
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case EMR_SETVIEWPORTEXTEX:
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{
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DWORD x = mr->dParm[0], y = mr->dParm[1];
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SetViewportExtEx(hdc, x, y, NULL);
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break;
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}
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case EMR_CREATEPEN:
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{
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DWORD obj = mr->dParm[0];
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(handletable->objectHandle)[obj] =
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CreatePenIndirect((LOGPEN *) &(mr->dParm[1]));
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break;
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}
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case EMR_EXTCREATEPEN:
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{
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DWORD obj = mr->dParm[0];
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DWORD style = mr->dParm[1], brush = mr->dParm[2];
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LOGBRUSH *b = (LOGBRUSH *) &mr->dParm[3];
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FIXME("Some ExtCreatePen args not handled\n");
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(handletable->objectHandle)[obj] =
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ExtCreatePen(style, brush, b, 0, NULL);
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break;
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}
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case EMR_CREATEBRUSHINDIRECT:
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{
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DWORD obj = mr->dParm[0];
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(handletable->objectHandle)[obj] =
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CreateBrushIndirect((LOGBRUSH *) &(mr->dParm[1]));
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break;
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}
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case EMR_EXTCREATEFONTINDIRECTW:
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{
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DWORD obj = mr->dParm[0];
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(handletable->objectHandle)[obj] =
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CreateFontIndirectW((LOGFONTW *) &(mr->dParm[1]));
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break;
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}
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case EMR_MOVETOEX:
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{
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DWORD x = mr->dParm[0], y = mr->dParm[1];
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MoveToEx(hdc, x, y, NULL);
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break;
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}
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case EMR_LINETO:
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{
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DWORD x = mr->dParm[0], y = mr->dParm[1];
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LineTo(hdc, x, y);
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break;
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}
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case EMR_RECTANGLE:
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{
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INT left = mr->dParm[0], top = mr->dParm[1], right = mr->dParm[2],
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bottom = mr->dParm[3];
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Rectangle(hdc, left, top, right, bottom);
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break;
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}
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case EMR_ELLIPSE:
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{
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INT left = mr->dParm[0], top = mr->dParm[1], right = mr->dParm[2],
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bottom = mr->dParm[3];
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Ellipse(hdc, left, top, right, bottom);
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break;
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}
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case EMR_POLYGON16:
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{
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/* 0-3 : a bounding rectangle? */
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INT count = mr->dParm[4];
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FIXME("Some Polygon16 args not handled\n");
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Polygon16(hdc, (POINT16 *)&mr->dParm[5], count);
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break;
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}
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case EMR_POLYLINE16:
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{
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/* 0-3 : a bounding rectangle? */
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INT count = mr->dParm[4];
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FIXME("Some Polyline16 args not handled\n");
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Polyline16(hdc, (POINT16 *)&mr->dParm[5], count);
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break;
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}
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#if 0
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case EMR_POLYPOLYGON16:
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{
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INT polygons = mr->dParm[z];
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LPPOINT16 pts = (LPPOINT16) &mr->dParm[x];
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LPINT16 counts = (LPINT16) &mr->dParm[y];
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PolyPolygon16(hdc, pts, counts, polygons);
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break;
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}
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#endif
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case EMR_STRETCHDIBITS:
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{
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LONG xDest = mr->dParm[4];
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LONG yDest = mr->dParm[5];
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LONG xSrc = mr->dParm[6];
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LONG ySrc = mr->dParm[7];
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LONG cxSrc = mr->dParm[8];
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LONG cySrc = mr->dParm[9];
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DWORD offBmiSrc = mr->dParm[10];
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DWORD offBitsSrc = mr->dParm[12];
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DWORD iUsageSrc = mr->dParm[14];
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DWORD dwRop = mr->dParm[15];
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LONG cxDest = mr->dParm[16];
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LONG cyDest = mr->dParm[17];
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StretchDIBits(hdc,xDest,yDest,cxDest,cyDest,
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xSrc,ySrc,cxSrc,cySrc,
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((char *)mr)+offBitsSrc,
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(const BITMAPINFO *)(((char *)mr)+offBmiSrc),
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iUsageSrc,dwRop);
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break;
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}
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case EMR_EXTTEXTOUTW:
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{
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/* 0-3: ??? */
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DWORD flags = mr->dParm[4];
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/* 5, 6: ??? */
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DWORD x = mr->dParm[7], y = mr->dParm[8];
|
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DWORD count = mr->dParm[9];
|
|
/* 10-16: ??? */
|
|
LPWSTR str = (LPWSTR)& mr->dParm[17];
|
|
/* trailing info: dx array? */
|
|
FIXME("Many ExtTextOut args not handled\n");
|
|
ExtTextOutW(hdc, x, y, flags, /* lpRect */ NULL,
|
|
str, count, /* lpDx */ NULL);
|
|
break;
|
|
}
|
|
|
|
default:
|
|
FIXME("type %d is unimplemented\n", type);
|
|
/* SetLastError(E_NOTIMPL); */
|
|
break;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* EnumEnhMetaFile32 (GDI32.79)
|
|
*
|
|
* Walk an enhanced metafile, calling a user-specified function _EnhMetaFunc_
|
|
* for each
|
|
* record. Returns when either every record has been used or
|
|
* when _EnhMetaFunc_ returns FALSE.
|
|
*
|
|
*
|
|
* RETURNS
|
|
* TRUE if every record is used, FALSE if any invocation of _EnhMetaFunc_
|
|
* returns FALSE.
|
|
*
|
|
* BUGS
|
|
* Ignores rect.
|
|
*/
|
|
BOOL WINAPI EnumEnhMetaFile(
|
|
HDC hdc, /* device context to pass to _EnhMetaFunc_ */
|
|
HENHMETAFILE hmf, /* EMF to walk */
|
|
ENHMFENUMPROC callback, /* callback function */
|
|
LPVOID data, /* optional data for callback function */
|
|
const RECT *rect /* bounding rectangle for rendered metafile */
|
|
)
|
|
{
|
|
BOOL ret = TRUE;
|
|
LPENHMETARECORD p = (LPENHMETARECORD) EMF_GetEnhMetaHeader(hmf);
|
|
INT count;
|
|
HANDLETABLE *ht;
|
|
|
|
if(!p) return FALSE;
|
|
count = ((LPENHMETAHEADER) p)->nHandles;
|
|
ht = HeapAlloc( GetProcessHeap(), 0, sizeof(HANDLETABLE)*count);
|
|
ht->objectHandle[0] = hmf;
|
|
while (ret) {
|
|
ret = (*callback)(hdc, ht, p, count, data);
|
|
if (p->iType == EMR_EOF) break;
|
|
p = (LPENHMETARECORD) ((char *) p + p->nSize);
|
|
}
|
|
HeapFree( GetProcessHeap(), 0, ht);
|
|
EMF_ReleaseEnhMetaHeader(hmf);
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
* PlayEnhMetaFile (GDI32.263)
|
|
*
|
|
* Renders an enhanced metafile into a specified rectangle *lpRect
|
|
* in device context hdc.
|
|
*
|
|
* BUGS
|
|
* Almost entirely unimplemented
|
|
*
|
|
*/
|
|
BOOL WINAPI PlayEnhMetaFile(
|
|
HDC hdc, /* DC to render into */
|
|
HENHMETAFILE hmf, /* metafile to render */
|
|
const RECT *lpRect /* rectangle to place metafile inside */
|
|
)
|
|
{
|
|
LPENHMETARECORD p = (LPENHMETARECORD) EMF_GetEnhMetaHeader(hmf);
|
|
INT count;
|
|
HANDLETABLE *ht;
|
|
BOOL ret = FALSE;
|
|
INT savedMode = 0;
|
|
|
|
if(!p) return FALSE;
|
|
count = ((LPENHMETAHEADER) p)->nHandles;
|
|
ht = HeapAlloc( GetProcessHeap(), 0, sizeof(HANDLETABLE) * count);
|
|
if (lpRect) {
|
|
LPENHMETAHEADER h = (LPENHMETAHEADER) p;
|
|
FLOAT xscale = (h->rclBounds.right - h->rclBounds.left) /
|
|
(lpRect->right - lpRect->left);
|
|
FLOAT yscale = (h->rclBounds.bottom - h->rclBounds.top) /
|
|
(lpRect->bottom - lpRect->top);
|
|
XFORM xform;
|
|
xform.eM11 = xscale;
|
|
xform.eM12 = 0;
|
|
xform.eM21 = 0;
|
|
xform.eM22 = yscale;
|
|
xform.eDx = lpRect->left;
|
|
xform.eDy = lpRect->top;
|
|
FIXME("play into rect doesn't work\n");
|
|
savedMode = SetGraphicsMode(hdc, GM_ADVANCED);
|
|
if (!SetWorldTransform(hdc, &xform)) {
|
|
WARN("World transform failed!\n");
|
|
}
|
|
}
|
|
|
|
ht->objectHandle[0] = hmf;
|
|
while (1) {
|
|
PlayEnhMetaFileRecord(hdc, ht, p, count);
|
|
if (p->iType == EMR_EOF) break;
|
|
p = (LPENHMETARECORD) ((char *) p + p->nSize); /* casted so that arithmetic is in bytes */
|
|
}
|
|
HeapFree( GetProcessHeap(), 0, ht );
|
|
EMF_ReleaseEnhMetaHeader(hmf);
|
|
if (savedMode) SetGraphicsMode(hdc, savedMode);
|
|
ret = TRUE; /* FIXME: calculate a more accurate return value */
|
|
return ret;
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* DeleteEnhMetaFile (GDI32.68)
|
|
*
|
|
* Deletes an enhanced metafile and frees the associated storage.
|
|
*/
|
|
BOOL WINAPI DeleteEnhMetaFile(HENHMETAFILE hmf)
|
|
{
|
|
return EMF_Delete_HENHMETAFILE( hmf );
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* CopyEnhMetaFileA (GDI32.21) Duplicate an enhanced metafile
|
|
*
|
|
*
|
|
*/
|
|
HENHMETAFILE WINAPI CopyEnhMetaFileA(
|
|
HENHMETAFILE hmfSrc,
|
|
LPCSTR file)
|
|
{
|
|
ENHMETAHEADER *emrSrc = EMF_GetEnhMetaHeader( hmfSrc ), *emrDst;
|
|
HENHMETAFILE hmfDst;
|
|
|
|
if(!emrSrc) return FALSE;
|
|
if (!file) {
|
|
emrDst = HeapAlloc( SystemHeap, 0, emrSrc->nBytes );
|
|
memcpy( emrDst, emrSrc, emrSrc->nBytes );
|
|
hmfDst = EMF_Create_HENHMETAFILE( emrDst, 0, 0 );
|
|
} else {
|
|
HFILE hFile;
|
|
hFile = CreateFileA( file, GENERIC_WRITE | GENERIC_READ, 0, NULL,
|
|
CREATE_ALWAYS, 0, -1);
|
|
WriteFile( hFile, emrSrc, emrSrc->nBytes, 0, 0);
|
|
hmfDst = EMF_GetEnhMetaFile( hFile );
|
|
}
|
|
EMF_ReleaseEnhMetaHeader( hmfSrc );
|
|
return hmfDst;
|
|
}
|
|
|
|
|
|
/*****************************************************************************
|
|
* GetEnhMetaFilePaletteEntries (GDI32.179)
|
|
*
|
|
* Copy the palette and report size
|
|
*/
|
|
|
|
UINT WINAPI GetEnhMetaFilePaletteEntries(HENHMETAFILE hemf,
|
|
UINT cEntries,
|
|
LPPALETTEENTRY lppe)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
|
|
/******************************************************************
|
|
* SetWinMetaFileBits (GDI32.343)
|
|
*
|
|
* Translate from old style to new style.
|
|
*/
|
|
|
|
HENHMETAFILE WINAPI SetWinMetaFileBits(UINT cbBuffer,
|
|
CONST BYTE *lpbBuffer,
|
|
HDC hdcRef,
|
|
CONST METAFILEPICT *lpmfp
|
|
)
|
|
{
|
|
FIXME("Stub\n");
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
|