dlls/gdi32/mfdrv/init.c

   1 /*
   2  * Metafile driver initialisation functions
   3  *
   4  * Copyright 1996 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include <stdarg.h>
  22 #include <string.h>
  23
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #include "winnls.h"
  27 #include "gdi_private.h"
  28 #include "mfdrv/metafiledrv.h"
  29 #include "wine/debug.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(metafile);
  32
  33 static BOOL CDECL MFDRV_DeleteDC( PHYSDEV dev );
  34
  35
  36 /**********************************************************************
  37  *           MFDRV_ExtEscape
  38  */
  39 static INT CDECL MFDRV_ExtEscape( PHYSDEV dev, INT nEscape, INT cbInput, LPCVOID in_data,
  40                                   INT cbOutput, LPVOID out_data )
  41 {
  42     METARECORD *mr;
  43     DWORD len;
  44     INT ret;
  45
  46     if (cbOutput) return 0;  /* escapes that require output cannot work in metafiles */
  47
  48     len = sizeof(*mr) + sizeof(WORD) + ((cbInput + 1) & ~1);
  49     mr = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len);
  50     mr->rdSize = len / 2;
  51     mr->rdFunction = META_ESCAPE;
  52     mr->rdParm[0] = nEscape;
  53     mr->rdParm[1] = cbInput;
  54     memcpy(&(mr->rdParm[2]), in_data, cbInput);
  55     ret = MFDRV_WriteRecord( dev, mr, len);
  56     HeapFree(GetProcessHeap(), 0, mr);
  57     return ret;
  58 }
  59
  60
  61 /******************************************************************
  62  *         MFDRV_GetDeviceCaps
  63  *
  64  *A very simple implementation that returns DT_METAFILE
  65  */
  66 static INT CDECL MFDRV_GetDeviceCaps(PHYSDEV dev, INT cap)
  67 {
  68     switch(cap)
  69     {
  70     case TECHNOLOGY:
  71         return DT_METAFILE;
  72     case TEXTCAPS:
  73         return 0;
  74     default:
  75         TRACE(" unsupported capability %d, will return 0\n", cap );
  76     }
  77     return 0;
  78 }
  79
  80
  81 static const DC_FUNCTIONS MFDRV_Funcs =
  82 {
  83     NULL,                            /* pAbortDoc */
  84     MFDRV_AbortPath,                 /* pAbortPath */
  85     NULL,                            /* pAlphaBlend */
  86     NULL,                            /* pAngleArc */
  87     MFDRV_Arc,                       /* pArc */
  88     NULL,                            /* pArcTo */
  89     MFDRV_BeginPath,                 /* pBeginPath */
  90     NULL,                            /* pChoosePixelFormat */
  91     MFDRV_Chord,                     /* pChord */
  92     MFDRV_CloseFigure,               /* pCloseFigure */
  93     NULL,                            /* pCreateBitmap */
  94     NULL,                            /* pCreateDC */
  95     NULL,                            /* pCreateDIBSection */
  96     NULL,                            /* pDeleteBitmap */
  97     MFDRV_DeleteDC,                  /* pDeleteDC */
  98     MFDRV_DeleteObject,              /* pDeleteObject */
  99     NULL,                            /* pDescribePixelFormat */
 100     NULL,                            /* pDeviceCapabilities */
 101     MFDRV_Ellipse,                   /* pEllipse */
 102     NULL,                            /* pEndDoc */
 103     NULL,                            /* pEndPage */
 104     MFDRV_EndPath,                   /* pEndPath */
 105     NULL,                            /* pEnumDeviceFonts */
 106     NULL,                            /* pEnumICMProfiles */
 107     MFDRV_ExcludeClipRect,           /* pExcludeClipRect */
 108     NULL,                            /* pExtDeviceMode */
 109     MFDRV_ExtEscape,                 /* pExtEscape */
 110     MFDRV_ExtFloodFill,              /* pExtFloodFill */
 111     MFDRV_ExtSelectClipRgn,          /* pExtSelectClipRgn */
 112     MFDRV_ExtTextOut,                /* pExtTextOut */
 113     MFDRV_FillPath,                  /* pFillPath */
 114     MFDRV_FillRgn,                   /* pFillRgn */
 115     MFDRV_FlattenPath,               /* pFlattenPath */
 116     MFDRV_FrameRgn,                  /* pFrameRgn */
 117     NULL,                            /* pGdiComment */
 118     NULL,                            /* pGetBitmapBits */
 119     NULL,                            /* pGetCharWidth */
 120     NULL,                            /* pGetDIBits */
 121     MFDRV_GetDeviceCaps,             /* pGetDeviceCaps */
 122     NULL,                            /* pGetDeviceGammaRamp */
 123     NULL,                            /* pGetICMProfile */
 124     NULL,                            /* pGetNearestColor */
 125     NULL,                            /* pGetPixel */
 126     NULL,                            /* pGetPixelFormat */
 127     NULL,                            /* pGetSystemPaletteEntries */
 128     NULL,                            /* pGetTextExtentExPoint */
 129     NULL,                            /* pGetTextMetrics */
 130     MFDRV_IntersectClipRect,         /* pIntersectClipRect */
 131     MFDRV_InvertRgn,                 /* pInvertRgn */
 132     MFDRV_LineTo,                    /* pLineTo */
 133     NULL,                            /* pModifyWorldTransform */
 134     MFDRV_MoveTo,                    /* pMoveTo */
 135     MFDRV_OffsetClipRgn,             /* pOffsetClipRgn */
 136     MFDRV_OffsetViewportOrgEx,       /* pOffsetViewportOrgEx */
 137     MFDRV_OffsetWindowOrgEx,         /* pOffsetWindowOrgEx */
 138     MFDRV_PaintRgn,                  /* pPaintRgn */
 139     MFDRV_PatBlt,                    /* pPatBlt */
 140     MFDRV_Pie,                       /* pPie */
 141     MFDRV_PolyBezier,                /* pPolyBezier */
 142     MFDRV_PolyBezierTo,              /* pPolyBezierTo */
 143     NULL,                            /* pPolyDraw */
 144     MFDRV_PolyPolygon,               /* pPolyPolygon */
 145     NULL,                            /* pPolyPolyline */
 146     MFDRV_Polygon,                   /* pPolygon */
 147     MFDRV_Polyline,                  /* pPolyline */
 148     NULL,                            /* pPolylineTo */
 149     NULL,                            /* pRealizeDefaultPalette */
 150     MFDRV_RealizePalette,            /* pRealizePalette */
 151     MFDRV_Rectangle,                 /* pRectangle */
 152     NULL,                            /* pResetDC */
 153     MFDRV_RestoreDC,                 /* pRestoreDC */
 154     MFDRV_RoundRect,                 /* pRoundRect */
 155     MFDRV_SaveDC,                    /* pSaveDC */
 156     MFDRV_ScaleViewportExtEx,        /* pScaleViewportExtEx */
 157     MFDRV_ScaleWindowExtEx,          /* pScaleWindowExtEx */
 158     MFDRV_SelectBitmap,              /* pSelectBitmap */
 159     MFDRV_SelectBrush,               /* pSelectBrush */
 160     MFDRV_SelectClipPath,            /* pSelectClipPath */
 161     MFDRV_SelectFont,                /* pSelectFont */
 162     MFDRV_SelectPalette,             /* pSelectPalette */
 163     MFDRV_SelectPen,                 /* pSelectPen */
 164     NULL,                            /* pSetArcDirection */
 165     NULL,                            /* pSetBitmapBits */
 166     MFDRV_SetBkColor,                /* pSetBkColor */
 167     MFDRV_SetBkMode,                 /* pSetBkMode */
 168     MFDRV_SetDCBrushColor,           /* pSetDCBrushColor*/
 169     MFDRV_SetDCPenColor,             /* pSetDCPenColor*/
 170     NULL,                            /* pSetDIBColorTable */
 171     NULL,                            /* pSetDIBits */
 172     MFDRV_SetDIBitsToDevice,         /* pSetDIBitsToDevice */
 173     NULL,                            /* pSetDeviceClipping */
 174     NULL,                            /* pSetDeviceGammaRamp */
 175     NULL,                            /* pSetLayout */
 176     MFDRV_SetMapMode,                /* pSetMapMode */
 177     MFDRV_SetMapperFlags,            /* pSetMapperFlags */
 178     MFDRV_SetPixel,                  /* pSetPixel */
 179     NULL,                            /* pSetPixelFormat */
 180     MFDRV_SetPolyFillMode,           /* pSetPolyFillMode */
 181     MFDRV_SetROP2,                   /* pSetROP2 */
 182     MFDRV_SetRelAbs,                 /* pSetRelAbs */
 183     MFDRV_SetStretchBltMode,         /* pSetStretchBltMode */
 184     MFDRV_SetTextAlign,              /* pSetTextAlign */
 185     MFDRV_SetTextCharacterExtra,     /* pSetTextCharacterExtra */
 186     MFDRV_SetTextColor,              /* pSetTextColor */
 187     MFDRV_SetTextJustification,      /* pSetTextJustification */
 188     MFDRV_SetViewportExtEx,          /* pSetViewportExtEx */
 189     MFDRV_SetViewportOrgEx,          /* pSetViewportOrgEx */
 190     MFDRV_SetWindowExtEx,            /* pSetWindowExtEx */
 191     MFDRV_SetWindowOrgEx,            /* pSetWindowOrgEx */
 192     NULL,                            /* pSetWorldTransform */
 193     NULL,                            /* pStartDoc */
 194     NULL,                            /* pStartPage */
 195     MFDRV_StretchBlt,                /* pStretchBlt */
 196     MFDRV_StretchDIBits,             /* pStretchDIBits */
 197     MFDRV_StrokeAndFillPath,         /* pStrokeAndFillPath */
 198     MFDRV_StrokePath,                /* pStrokePath */
 199     NULL,                            /* pSwapBuffers */
 200     NULL,                            /* pUnrealizePalette */
 201     MFDRV_WidenPath                  /* pWidenPath */
 202 };
 203
 204
 205
 206 /**********************************************************************
 207  *           MFDRV_AllocMetaFile
 208  */
 209 static DC *MFDRV_AllocMetaFile(void)
 210 {
 211     DC *dc;
 212     METAFILEDRV_PDEVICE *physDev;
 213
 214     if (!(dc = alloc_dc_ptr( OBJ_METADC ))) return NULL;
 215
 216     physDev = HeapAlloc(GetProcessHeap(),0,sizeof(*physDev));
 217     if (!physDev)
 218     {
 219         free_dc_ptr( dc );
 220         return NULL;
 221     }
 222     if (!(physDev->mh = HeapAlloc( GetProcessHeap(), 0, sizeof(*physDev->mh) )))
 223     {
 224         HeapFree( GetProcessHeap(), 0, physDev );
 225         free_dc_ptr( dc );
 226         return NULL;
 227     }
 228
 229     push_dc_driver( dc, &physDev->dev, &MFDRV_Funcs );
 230
 231     physDev->handles = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, HANDLE_LIST_INC * sizeof(physDev->handles[0]));
 232     physDev->handles_size = HANDLE_LIST_INC;
 233     physDev->cur_handles = 0;
 234
 235     physDev->hFile = 0;
 236
 237     physDev->mh->mtHeaderSize   = sizeof(METAHEADER) / sizeof(WORD);
 238     physDev->mh->mtVersion      = 0x0300;
 239     physDev->mh->mtSize         = physDev->mh->mtHeaderSize;
 240     physDev->mh->mtNoObjects    = 0;
 241     physDev->mh->mtMaxRecord    = 0;
 242     physDev->mh->mtNoParameters = 0;
 243
 244     SetVirtualResolution( physDev->dev.hdc, 0, 0, 0, 0);
 245
 246     return dc;
 247 }
 248
 249
 250 /**********************************************************************
 251  *           MFDRV_DeleteDC
 252  */
 253 static BOOL CDECL MFDRV_DeleteDC( PHYSDEV dev )
 254 {
 255     METAFILEDRV_PDEVICE *physDev = (METAFILEDRV_PDEVICE *)dev;
 256     DWORD index;
 257
 258     HeapFree( GetProcessHeap(), 0, physDev->mh );
 259     for(index = 0; index < physDev->handles_size; index++)
 260         if(physDev->handles[index])
 261             GDI_hdc_not_using_object(physDev->handles[index], dev->hdc);
 262     HeapFree( GetProcessHeap(), 0, physDev->handles );
 263     HeapFree( GetProcessHeap(), 0, physDev );
 264     return TRUE;
 265 }
 266
 267
 268 /**********************************************************************
 269  *           CreateMetaFileW   (GDI32.@)
 270  *
 271  *  Create a new DC and associate it with a metafile. Pass a filename
 272  *  to create a disk-based metafile, NULL to create a memory metafile.
 273  *
 274  * PARAMS
 275  *  filename [I] Filename of disk metafile
 276  *
 277  * RETURNS
 278  *  A handle to the metafile DC if successful, NULL on failure.
 279  */
 280 HDC WINAPI CreateMetaFileW( LPCWSTR filename )
 281 {
 282     HDC ret;
 283     DC *dc;
 284     METAFILEDRV_PDEVICE *physDev;
 285     HANDLE hFile;
 286
 287     TRACE("%s\n", debugstr_w(filename) );
 288
 289     if (!(dc = MFDRV_AllocMetaFile())) return 0;
 290     physDev = (METAFILEDRV_PDEVICE *)dc->physDev;
 291
 292     if (filename)  /* disk based metafile */
 293     {
 294         physDev->mh->mtType = METAFILE_DISK;
 295         if ((hFile = CreateFileW(filename, GENERIC_WRITE, 0, NULL,
 296                                 CREATE_ALWAYS, 0, 0)) == INVALID_HANDLE_VALUE) {
 297             free_dc_ptr( dc );
 298             return 0;
 299         }
 300         if (!WriteFile( hFile, physDev->mh, sizeof(*physDev->mh), NULL,
 301                         NULL )) {
 302             free_dc_ptr( dc );
 303             return 0;
 304         }
 305         physDev->hFile = hFile;
 306
 307         /* Grow METAHEADER to include filename */
 308         physDev->mh = MF_CreateMetaHeaderDisk(physDev->mh, filename, TRUE);
 309     }
 310     else  /* memory based metafile */
 311         physDev->mh->mtType = METAFILE_MEMORY;
 312
 313     TRACE("returning %p\n", physDev->dev.hdc);
 314     ret = physDev->dev.hdc;
 315     release_dc_ptr( dc );
 316     return ret;
 317 }
 318
 319 /**********************************************************************
 320  *          CreateMetaFileA   (GDI32.@)
 321  *
 322  * See CreateMetaFileW.
 323  */
 324 HDC WINAPI CreateMetaFileA(LPCSTR filename)
 325 {
 326     LPWSTR filenameW;
 327     DWORD len;
 328     HDC hReturnDC;
 329
 330     if (!filename) return CreateMetaFileW(NULL);
 331
 332     len = MultiByteToWideChar( CP_ACP, 0, filename, -1, NULL, 0 );
 333     filenameW = HeapAlloc( GetProcessHeap(), 0, len*sizeof(WCHAR) );
 334     MultiByteToWideChar( CP_ACP, 0, filename, -1, filenameW, len );
 335
 336     hReturnDC = CreateMetaFileW(filenameW);
 337
 338     HeapFree( GetProcessHeap(), 0, filenameW );
 339
 340     return hReturnDC;
 341 }
 342
 343
 344 /**********************************************************************
 345  *          MFDRV_CloseMetaFile
 346  */
 347 static DC *MFDRV_CloseMetaFile( HDC hdc )
 348 {
 349     DC *dc;
 350     METAFILEDRV_PDEVICE *physDev;
 351
 352     TRACE("(%p)\n", hdc );
 353
 354     if (!(dc = get_dc_ptr( hdc ))) return NULL;
 355     if (dc->header.type != OBJ_METADC)
 356     {
 357         release_dc_ptr( dc );
 358         return NULL;
 359     }
 360     if (dc->refcount != 1)
 361     {
 362         FIXME( "not deleting busy DC %p refcount %u\n", hdc, dc->refcount );
 363         release_dc_ptr( dc );
 364         return NULL;
 365     }
 366     physDev = (METAFILEDRV_PDEVICE *)dc->physDev;
 367
 368     /* Construct the end of metafile record - this is documented
 369      * in SDK Knowledgebase Q99334.
 370      */
 371
 372     if (!MFDRV_MetaParam0(dc->physDev, META_EOF))
 373     {
 374         free_dc_ptr( dc );
 375         return 0;
 376     }
 377
 378     if (physDev->mh->mtType == METAFILE_DISK)  /* disk based metafile */
 379     {
 380         if (SetFilePointer(physDev->hFile, 0, NULL, FILE_BEGIN) != 0) {
 381             free_dc_ptr( dc );
 382             return 0;
 383         }
 384
 385         physDev->mh->mtType = METAFILE_MEMORY; /* This is what windows does */
 386         if (!WriteFile(physDev->hFile, physDev->mh, sizeof(*physDev->mh),
 387                        NULL, NULL)) {
 388             free_dc_ptr( dc );
 389             return 0;
 390         }
 391         CloseHandle(physDev->hFile);
 392         physDev->mh->mtType = METAFILE_DISK;
 393     }
 394
 395     return dc;
 396 }
 397
 398 /******************************************************************
 399  *           CloseMetaFile   (GDI32.@)
 400  *
 401  *  Stop recording graphics operations in metafile associated with
 402  *  hdc and retrieve metafile.
 403  *
 404  * PARAMS
 405  *  hdc [I] Metafile DC to close
 406  *
 407  * RETURNS
 408  *  Handle of newly created metafile on success, NULL on failure.
 409  */
 410 HMETAFILE WINAPI CloseMetaFile(HDC hdc)
 411 {
 412     HMETAFILE hmf;
 413     METAFILEDRV_PDEVICE *physDev;
 414     DC *dc = MFDRV_CloseMetaFile(hdc);
 415     if (!dc) return 0;
 416     physDev = (METAFILEDRV_PDEVICE *)dc->physDev;
 417
 418     /* Now allocate a global handle for the metafile */
 419
 420     hmf = MF_Create_HMETAFILE( physDev->mh );
 421
 422     physDev->mh = NULL;  /* So it won't be deleted */
 423     free_dc_ptr( dc );
 424     return hmf;
 425 }
 426
 427
 428 /******************************************************************
 429  *         MFDRV_WriteRecord
 430  *
 431  * Warning: this function can change the pointer to the metafile header.
 432  */
 433 BOOL MFDRV_WriteRecord( PHYSDEV dev, METARECORD *mr, DWORD rlen)
 434 {
 435     DWORD len, size;
 436     METAHEADER *mh;
 437     METAFILEDRV_PDEVICE *physDev = (METAFILEDRV_PDEVICE *)dev;
 438
 439     switch(physDev->mh->mtType)
 440     {
 441     case METAFILE_MEMORY:
 442         len = physDev->mh->mtSize * 2 + rlen;
 443         /* reallocate memory if needed */
 444         size = HeapSize( GetProcessHeap(), 0, physDev->mh );
 445         if (len > size)
 446         {
 447             /*expand size*/
 448             size += size / 2 + rlen;
 449             mh = HeapReAlloc( GetProcessHeap(), 0, physDev->mh, size);
 450             if (!mh) return FALSE;
 451             physDev->mh = mh;
 452             TRACE("Reallocated metafile: new size is %d\n",size);
 453         }
 454         memcpy((WORD *)physDev->mh + physDev->mh->mtSize, mr, rlen);
 455         break;
 456     case METAFILE_DISK:
 457         TRACE("Writing record to disk\n");
 458         if (!WriteFile(physDev->hFile, mr, rlen, NULL, NULL))
 459             return FALSE;
 460         break;
 461     default:
 462         ERR("Unknown metafile type %d\n", physDev->mh->mtType );
 463         return FALSE;
 464     }
 465
 466     physDev->mh->mtSize += rlen / 2;
 467     physDev->mh->mtMaxRecord = max(physDev->mh->mtMaxRecord, rlen / 2);
 468     return TRUE;
 469 }
 470
 471
 472 /******************************************************************
 473  *         MFDRV_MetaParam0
 474  */
 475
 476 BOOL MFDRV_MetaParam0(PHYSDEV dev, short func)
 477 {
 478     char buffer[8];
 479     METARECORD *mr = (METARECORD *)&buffer;
 480
 481     mr->rdSize = 3;
 482     mr->rdFunction = func;
 483     return MFDRV_WriteRecord( dev, mr, mr->rdSize * 2);
 484 }
 485
 486
 487 /******************************************************************
 488  *         MFDRV_MetaParam1
 489  */
 490 BOOL MFDRV_MetaParam1(PHYSDEV dev, short func, short param1)
 491 {
 492     char buffer[8];
 493     METARECORD *mr = (METARECORD *)&buffer;
 494
 495     mr->rdSize = 4;
 496     mr->rdFunction = func;
 497     *(mr->rdParm) = param1;
 498     return MFDRV_WriteRecord( dev, mr, mr->rdSize * 2);
 499 }
 500
 501
 502 /******************************************************************
 503  *         MFDRV_MetaParam2
 504  */
 505 BOOL MFDRV_MetaParam2(PHYSDEV dev, short func, short param1, short param2)
 506 {
 507     char buffer[10];
 508     METARECORD *mr = (METARECORD *)&buffer;
 509
 510     mr->rdSize = 5;
 511     mr->rdFunction = func;
 512     *(mr->rdParm) = param2;
 513     *(mr->rdParm + 1) = param1;
 514     return MFDRV_WriteRecord( dev, mr, mr->rdSize * 2);
 515 }
 516
 517
 518 /******************************************************************
 519  *         MFDRV_MetaParam4
 520  */
 521
 522 BOOL MFDRV_MetaParam4(PHYSDEV dev, short func, short param1, short param2,
 523                       short param3, short param4)
 524 {
 525     char buffer[14];
 526     METARECORD *mr = (METARECORD *)&buffer;
 527
 528     mr->rdSize = 7;
 529     mr->rdFunction = func;
 530     *(mr->rdParm) = param4;
 531     *(mr->rdParm + 1) = param3;
 532     *(mr->rdParm + 2) = param2;
 533     *(mr->rdParm + 3) = param1;
 534     return MFDRV_WriteRecord( dev, mr, mr->rdSize * 2);
 535 }
 536
 537
 538 /******************************************************************
 539  *         MFDRV_MetaParam6
 540  */
 541
 542 BOOL MFDRV_MetaParam6(PHYSDEV dev, short func, short param1, short param2,
 543                       short param3, short param4, short param5, short param6)
 544 {
 545     char buffer[18];
 546     METARECORD *mr = (METARECORD *)&buffer;
 547
 548     mr->rdSize = 9;
 549     mr->rdFunction = func;
 550     *(mr->rdParm) = param6;
 551     *(mr->rdParm + 1) = param5;
 552     *(mr->rdParm + 2) = param4;
 553     *(mr->rdParm + 3) = param3;
 554     *(mr->rdParm + 4) = param2;
 555     *(mr->rdParm + 5) = param1;
 556     return MFDRV_WriteRecord( dev, mr, mr->rdSize * 2);
 557 }
 558
 559
 560 /******************************************************************
 561  *         MFDRV_MetaParam8
 562  */
 563 BOOL MFDRV_MetaParam8(PHYSDEV dev, short func, short param1, short param2,
 564                       short param3, short param4, short param5,
 565                       short param6, short param7, short param8)
 566 {
 567     char buffer[22];
 568     METARECORD *mr = (METARECORD *)&buffer;
 569
 570     mr->rdSize = 11;
 571     mr->rdFunction = func;
 572     *(mr->rdParm) = param8;
 573     *(mr->rdParm + 1) = param7;
 574     *(mr->rdParm + 2) = param6;
 575     *(mr->rdParm + 3) = param5;
 576     *(mr->rdParm + 4) = param4;
 577     *(mr->rdParm + 5) = param3;
 578     *(mr->rdParm + 6) = param2;
 579     *(mr->rdParm + 7) = param1;
 580     return MFDRV_WriteRecord( dev, mr, mr->rdSize * 2);
 581 }