git.oblomov.eu Git - wine/blob - dlls/sane.ds/ds_image.c

   1 /*
   2  * Copyright 2000 Corel Corporation
   3  * Copyright 2006 CodeWeavers, Aric Stewart
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  */
  19
  20 #include "config.h"
  21
  22 #include <stdarg.h>
  23
  24 #include "sane_i.h"
  25 #include "wingdi.h"
  26 #include "winuser.h"
  27 #include "wine/debug.h"
  28
  29 WINE_DEFAULT_DEBUG_CHANNEL(twain);
  30
  31 /* DG_IMAGE/DAT_IMAGEINFO/MSG_GET */
  32 TW_UINT16 SANE_ImageInfoGet (pTW_IDENTITY pOrigin,
  33                               TW_MEMREF pData)
  34 {
  35 #ifndef SONAME_LIBSANE
  36     return TWRC_FAILURE;
  37 #else
  38     TW_UINT16 twRC = TWRC_SUCCESS;
  39     pTW_IMAGEINFO pImageInfo = (pTW_IMAGEINFO) pData;
  40     SANE_Status status;
  41     SANE_Int resolution;
  42
  43     TRACE("DG_IMAGE/DAT_IMAGEINFO/MSG_GET\n");
  44
  45     if (activeDS.currentState != 6 && activeDS.currentState != 7)
  46     {
  47         twRC = TWRC_FAILURE;
  48         activeDS.twCC = TWCC_SEQERROR;
  49     }
  50     else
  51     {
  52         if (activeDS.currentState == 6)
  53         {
  54             /* return general image description information about the image about to be transferred */
  55             status = psane_get_parameters (activeDS.deviceHandle, &activeDS.sane_param);
  56             TRACE("Getting parameters\n");
  57             if (status != SANE_STATUS_GOOD)
  58             {
  59                 WARN("psane_get_parameters: %s\n", psane_strstatus (status));
  60                 psane_cancel (activeDS.deviceHandle);
  61                 activeDS.sane_started = FALSE;
  62                 activeDS.twCC = TWCC_OPERATIONERROR;
  63                 return TWRC_FAILURE;
  64             }
  65             activeDS.sane_param_valid = TRUE;
  66         }
  67
  68         if (sane_option_get_int(activeDS.deviceHandle, "resolution", &resolution) == SANE_STATUS_GOOD)
  69             pImageInfo->XResolution.Whole = pImageInfo->YResolution.Whole = resolution;
  70         else
  71             pImageInfo->XResolution.Whole = pImageInfo->YResolution.Whole = -1;
  72         pImageInfo->XResolution.Frac = 0;
  73         pImageInfo->YResolution.Frac = 0;
  74         pImageInfo->ImageWidth = activeDS.sane_param.pixels_per_line;
  75         pImageInfo->ImageLength = activeDS.sane_param.lines;
  76
  77         TRACE("Bits per Sample %i\n",activeDS.sane_param.depth);
  78         TRACE("Frame Format %i\n",activeDS.sane_param.format);
  79
  80         if (activeDS.sane_param.format == SANE_FRAME_RGB )
  81         {
  82             pImageInfo->BitsPerPixel = activeDS.sane_param.depth * 3;
  83             pImageInfo->Compression = TWCP_NONE;
  84             pImageInfo->Planar = TRUE;
  85             pImageInfo->SamplesPerPixel = 3;
  86             pImageInfo->BitsPerSample[0] = activeDS.sane_param.depth;
  87             pImageInfo->BitsPerSample[1] = activeDS.sane_param.depth;
  88             pImageInfo->BitsPerSample[2] = activeDS.sane_param.depth;
  89             pImageInfo->PixelType = TWPT_RGB;
  90         }
  91         else if (activeDS.sane_param.format == SANE_FRAME_GRAY)
  92         {
  93             pImageInfo->BitsPerPixel = activeDS.sane_param.depth;
  94             pImageInfo->Compression = TWCP_NONE;
  95             pImageInfo->Planar = TRUE;
  96             pImageInfo->SamplesPerPixel = 1;
  97             pImageInfo->BitsPerSample[0] = activeDS.sane_param.depth;
  98             if (activeDS.sane_param.depth == 1)
  99                 pImageInfo->PixelType = TWPT_BW;
 100             else
 101                 pImageInfo->PixelType = TWPT_GRAY;
 102         }
 103         else
 104         {
 105             ERR("Unhandled source frame type %i\n",activeDS.sane_param.format);
 106             twRC = TWRC_FAILURE;
 107             activeDS.twCC = TWCC_SEQERROR;
 108         }
 109     }
 110
 111     return twRC;
 112 #endif
 113 }
 114
 115 /* DG_IMAGE/DAT_IMAGELAYOUT/MSG_GET */
 116 TW_UINT16 SANE_ImageLayoutGet (pTW_IDENTITY pOrigin,
 117                                 TW_MEMREF pData)
 118 {
 119 #ifndef SONAME_LIBSANE
 120     return TWRC_FAILURE;
 121 #else
 122     TW_IMAGELAYOUT *img = (TW_IMAGELAYOUT *) pData;
 123     SANE_Fixed tlx_current;
 124     SANE_Fixed tly_current;
 125     SANE_Fixed brx_current;
 126     SANE_Fixed bry_current;
 127     SANE_Status status;
 128
 129     TRACE("DG_IMAGE/DAT_IMAGELAYOUT/MSG_GET\n");
 130
 131     status = sane_option_probe_scan_area(activeDS.deviceHandle, "tl-x", &tlx_current, NULL, NULL, NULL, NULL);
 132     if (status == SANE_STATUS_GOOD)
 133         status = sane_option_probe_scan_area(activeDS.deviceHandle, "tl-y", &tly_current, NULL, NULL, NULL, NULL);
 134
 135     if (status == SANE_STATUS_GOOD)
 136         status = sane_option_probe_scan_area(activeDS.deviceHandle, "br-x", &brx_current, NULL, NULL, NULL, NULL);
 137
 138     if (status == SANE_STATUS_GOOD)
 139         status = sane_option_probe_scan_area(activeDS.deviceHandle, "br-y", &bry_current, NULL, NULL, NULL, NULL);
 140
 141     if (status != SANE_STATUS_GOOD)
 142     {
 143         activeDS.twCC = sane_status_to_twcc(status);
 144         return TWRC_FAILURE;
 145     }
 146
 147     convert_sane_res_to_twain(SANE_UNFIX(tlx_current), SANE_UNIT_MM, &img->Frame.Left, TWUN_INCHES);
 148     convert_sane_res_to_twain(SANE_UNFIX(tly_current), SANE_UNIT_MM, &img->Frame.Top, TWUN_INCHES);
 149     convert_sane_res_to_twain(SANE_UNFIX(brx_current), SANE_UNIT_MM, &img->Frame.Right, TWUN_INCHES);
 150     convert_sane_res_to_twain(SANE_UNFIX(bry_current), SANE_UNIT_MM, &img->Frame.Bottom, TWUN_INCHES);
 151
 152     img->DocumentNumber = 1;
 153     img->PageNumber = 1;
 154     img->FrameNumber = 1;
 155
 156     activeDS.twCC = TWCC_SUCCESS;
 157     return TWRC_SUCCESS;
 158 #endif
 159 }
 160
 161 /* DG_IMAGE/DAT_IMAGELAYOUT/MSG_GETDEFAULT */
 162 TW_UINT16 SANE_ImageLayoutGetDefault (pTW_IDENTITY pOrigin,
 163                                        TW_MEMREF pData)
 164 {
 165     FIXME ("stub!\n");
 166
 167     return TWRC_FAILURE;
 168 }
 169
 170 /* DG_IMAGE/DAT_IMAGELAYOUT/MSG_RESET */
 171 TW_UINT16 SANE_ImageLayoutReset (pTW_IDENTITY pOrigin,
 172                                   TW_MEMREF pData)
 173 {
 174     FIXME ("stub!\n");
 175
 176     return TWRC_FAILURE;
 177 }
 178
 179 #ifdef SONAME_LIBSANE
 180 static TW_UINT16 set_one_imagecoord(const char *option_name, TW_FIX32 val, BOOL *changed)
 181 {
 182     double d = val.Whole + ((double) val.Frac / 65536.0);
 183     int set_status = 0;
 184     SANE_Status status;
 185     status = sane_option_set_fixed(activeDS.deviceHandle, option_name,
 186              SANE_FIX((d * 254) / 10), &set_status);
 187     if (status != SANE_STATUS_GOOD)
 188     {
 189         activeDS.twCC = sane_status_to_twcc(status);
 190         return TWRC_FAILURE;
 191     }
 192     if (set_status & SANE_INFO_INEXACT)
 193         *changed = TRUE;
 194     return TWRC_SUCCESS;
 195 }
 196 #endif
 197
 198 /* DG_IMAGE/DAT_IMAGELAYOUT/MSG_SET */
 199 TW_UINT16 SANE_ImageLayoutSet (pTW_IDENTITY pOrigin,
 200                                 TW_MEMREF pData)
 201 {
 202 #ifndef SONAME_LIBSANE
 203     return TWRC_FAILURE;
 204 #else
 205     TW_IMAGELAYOUT *img = (TW_IMAGELAYOUT *) pData;
 206     BOOL changed = FALSE;
 207     TW_UINT16 twrc;
 208
 209     TRACE("DG_IMAGE/DAT_IMAGELAYOUT/MSG_SET\n");
 210     TRACE("Frame: [Left %x.%x|Top %x.%x|Right %x.%x|Bottom %x.%x]\n",
 211             img->Frame.Left.Whole, img->Frame.Left.Frac,
 212             img->Frame.Top.Whole, img->Frame.Top.Frac,
 213             img->Frame.Right.Whole, img->Frame.Right.Frac,
 214             img->Frame.Bottom.Whole, img->Frame.Bottom.Frac);
 215
 216     twrc = set_one_imagecoord("tl-x", img->Frame.Left, &changed);
 217     if (twrc != TWRC_SUCCESS)
 218         return (twrc);
 219
 220     twrc = set_one_imagecoord("tl-y", img->Frame.Top, &changed);
 221     if (twrc != TWRC_SUCCESS)
 222         return (twrc);
 223
 224     twrc = set_one_imagecoord("br-x", img->Frame.Right, &changed);
 225     if (twrc != TWRC_SUCCESS)
 226         return (twrc);
 227
 228     twrc = set_one_imagecoord("br-y", img->Frame.Bottom, &changed);
 229     if (twrc != TWRC_SUCCESS)
 230         return (twrc);
 231
 232     activeDS.twCC = TWCC_SUCCESS;
 233     return changed ? TWRC_CHECKSTATUS : TWRC_SUCCESS;
 234 #endif
 235 }
 236
 237 /* DG_IMAGE/DAT_IMAGEMEMXFER/MSG_GET */
 238 TW_UINT16 SANE_ImageMemXferGet (pTW_IDENTITY pOrigin,
 239                                  TW_MEMREF pData)
 240 {
 241 #ifndef SONAME_LIBSANE
 242     return TWRC_FAILURE;
 243 #else
 244     TW_UINT16 twRC = TWRC_SUCCESS;
 245     pTW_IMAGEMEMXFER pImageMemXfer = (pTW_IMAGEMEMXFER) pData;
 246     SANE_Status status = SANE_STATUS_GOOD;
 247
 248     TRACE ("DG_IMAGE/DAT_IMAGEMEMXFER/MSG_GET\n");
 249
 250     if (activeDS.currentState < 6 || activeDS.currentState > 7)
 251     {
 252         twRC = TWRC_FAILURE;
 253         activeDS.twCC = TWCC_SEQERROR;
 254     }
 255     else
 256     {
 257         LPBYTE buffer;
 258         int buff_len = 0;
 259         int consumed_len = 0;
 260         LPBYTE ptr;
 261         int rows;
 262
 263         /* Transfer an image from the source to the application */
 264         if (activeDS.currentState == 6)
 265         {
 266
 267             /* trigger scanning dialog */
 268             activeDS.progressWnd = ScanningDialogBox(NULL,0);
 269
 270             ScanningDialogBox(activeDS.progressWnd,0);
 271
 272             if (! activeDS.sane_started)
 273             {
 274                 status = psane_start (activeDS.deviceHandle);
 275                 if (status != SANE_STATUS_GOOD)
 276                 {
 277                     WARN("psane_start: %s\n", psane_strstatus (status));
 278                     psane_cancel (activeDS.deviceHandle);
 279                     activeDS.twCC = TWCC_OPERATIONERROR;
 280                     return TWRC_FAILURE;
 281                 }
 282                 activeDS.sane_started = TRUE;
 283             }
 284
 285             status = psane_get_parameters (activeDS.deviceHandle,
 286                     &activeDS.sane_param);
 287             activeDS.sane_param_valid = TRUE;
 288
 289             if (status != SANE_STATUS_GOOD)
 290             {
 291                 WARN("psane_get_parameters: %s\n", psane_strstatus (status));
 292                 psane_cancel (activeDS.deviceHandle);
 293                 activeDS.sane_started = FALSE;
 294                 activeDS.twCC = TWCC_OPERATIONERROR;
 295                 return TWRC_FAILURE;
 296             }
 297
 298             TRACE("Acquiring image %dx%dx%d bits (format=%d last=%d) from sane...\n"
 299               , activeDS.sane_param.pixels_per_line, activeDS.sane_param.lines,
 300               activeDS.sane_param.depth, activeDS.sane_param.format,
 301               activeDS.sane_param.last_frame);
 302
 303             activeDS.currentState = 7;
 304         }
 305
 306         /* access memory buffer */
 307         if (pImageMemXfer->Memory.Length < activeDS.sane_param.bytes_per_line)
 308         {
 309             psane_cancel (activeDS.deviceHandle);
 310             activeDS.sane_started = FALSE;
 311             activeDS.twCC = TWCC_BADVALUE;
 312             return TWRC_FAILURE;
 313         }
 314
 315         if (pImageMemXfer->Memory.Flags & TWMF_HANDLE)
 316         {
 317             FIXME("Memory Handle, may not be locked correctly\n");
 318             buffer = LocalLock(pImageMemXfer->Memory.TheMem);
 319         }
 320         else
 321             buffer = pImageMemXfer->Memory.TheMem;
 322
 323         memset(buffer,0,pImageMemXfer->Memory.Length);
 324
 325         ptr = buffer;
 326         consumed_len = 0;
 327         rows = pImageMemXfer->Memory.Length / activeDS.sane_param.bytes_per_line;
 328
 329         /* must fill full lines */
 330         while (consumed_len < (activeDS.sane_param.bytes_per_line*rows) &&
 331                 status == SANE_STATUS_GOOD)
 332         {
 333             status = psane_read (activeDS.deviceHandle, ptr,
 334                     (activeDS.sane_param.bytes_per_line*rows) - consumed_len ,
 335                     &buff_len);
 336             consumed_len += buff_len;
 337             ptr += buff_len;
 338         }
 339
 340         if (status == SANE_STATUS_GOOD || status == SANE_STATUS_EOF)
 341         {
 342             pImageMemXfer->Compression = TWCP_NONE;
 343             pImageMemXfer->BytesPerRow = activeDS.sane_param.bytes_per_line;
 344             pImageMemXfer->Columns = activeDS.sane_param.pixels_per_line;
 345             pImageMemXfer->Rows = rows;
 346             pImageMemXfer->XOffset = 0;
 347             pImageMemXfer->YOffset = 0;
 348             pImageMemXfer->BytesWritten = consumed_len;
 349
 350             ScanningDialogBox(activeDS.progressWnd, consumed_len);
 351
 352             if (status == SANE_STATUS_EOF)
 353             {
 354                 ScanningDialogBox(activeDS.progressWnd, -1);
 355                 TRACE("psane_read: %s\n", psane_strstatus (status));
 356                 psane_cancel (activeDS.deviceHandle);
 357                 activeDS.sane_started = FALSE;
 358                 twRC = TWRC_XFERDONE;
 359             }
 360             activeDS.twCC = TWRC_SUCCESS;
 361         }
 362         else if (status != SANE_STATUS_EOF)
 363         {
 364             ScanningDialogBox(activeDS.progressWnd, -1);
 365             WARN("psane_read: %s\n", psane_strstatus (status));
 366             psane_cancel (activeDS.deviceHandle);
 367             activeDS.sane_started = FALSE;
 368             activeDS.twCC = TWCC_OPERATIONERROR;
 369             twRC = TWRC_FAILURE;
 370         }
 371     }
 372
 373     if (pImageMemXfer->Memory.Flags & TWMF_HANDLE)
 374         LocalUnlock(pImageMemXfer->Memory.TheMem);
 375
 376     return twRC;
 377 #endif
 378 }
 379
 380 #ifdef SONAME_LIBSANE
 381 static SANE_Status read_one_line(SANE_Handle h, BYTE *line, int len)
 382 {
 383     int read_len;
 384     SANE_Status status;
 385
 386     for (;;)
 387     {
 388         read_len = 0;
 389         status = psane_read (activeDS.deviceHandle, line, len, &read_len);
 390         if (status != SANE_STATUS_GOOD)
 391             break;
 392
 393         if (read_len == len)
 394             break;
 395
 396         line += read_len;
 397         len -= read_len;
 398     }
 399
 400     return status;
 401 }
 402 #endif
 403
 404 /* DG_IMAGE/DAT_IMAGENATIVEXFER/MSG_GET */
 405 TW_UINT16 SANE_ImageNativeXferGet (pTW_IDENTITY pOrigin,
 406                                     TW_MEMREF pData)
 407 {
 408 #ifndef SONAME_LIBSANE
 409     return TWRC_FAILURE;
 410 #else
 411     TW_UINT16 twRC = TWRC_SUCCESS;
 412     pTW_UINT32 pHandle = (pTW_UINT32) pData;
 413     SANE_Status status;
 414     HANDLE hDIB;
 415     BITMAPINFOHEADER *header = NULL;
 416     int dib_bytes;
 417     int dib_bytes_per_line;
 418     BYTE *line;
 419     RGBQUAD *colors;
 420     int color_size = 0;
 421     int i;
 422     BYTE *p;
 423
 424     TRACE("DG_IMAGE/DAT_IMAGENATIVEXFER/MSG_GET\n");
 425
 426     if (activeDS.currentState != 6)
 427     {
 428         twRC = TWRC_FAILURE;
 429         activeDS.twCC = TWCC_SEQERROR;
 430     }
 431     else
 432     {
 433         /* Transfer an image from the source to the application */
 434         if (! activeDS.sane_started)
 435         {
 436             status = psane_start (activeDS.deviceHandle);
 437             if (status != SANE_STATUS_GOOD)
 438             {
 439                 WARN("psane_start: %s\n", psane_strstatus (status));
 440                 psane_cancel (activeDS.deviceHandle);
 441                 activeDS.twCC = TWCC_OPERATIONERROR;
 442                 return TWRC_FAILURE;
 443             }
 444             activeDS.sane_started = TRUE;
 445         }
 446
 447         status = psane_get_parameters (activeDS.deviceHandle, &activeDS.sane_param);
 448         activeDS.sane_param_valid = TRUE;
 449         if (status != SANE_STATUS_GOOD)
 450         {
 451             WARN("psane_get_parameters: %s\n", psane_strstatus (status));
 452             psane_cancel (activeDS.deviceHandle);
 453             activeDS.sane_started = FALSE;
 454             activeDS.twCC = TWCC_OPERATIONERROR;
 455             return TWRC_FAILURE;
 456         }
 457
 458         if (activeDS.sane_param.format == SANE_FRAME_GRAY)
 459         {
 460             if (activeDS.sane_param.depth == 8)
 461                 color_size = (1 << 8) * sizeof(*colors);
 462             else if (activeDS.sane_param.depth == 1)
 463                 ;
 464             else
 465             {
 466                 FIXME("For NATIVE, we support only 1 bit monochrome and 8 bit Grayscale, not %d\n", activeDS.sane_param.depth);
 467                 psane_cancel (activeDS.deviceHandle);
 468                 activeDS.sane_started = FALSE;
 469                 activeDS.twCC = TWCC_OPERATIONERROR;
 470                 return TWRC_FAILURE;
 471             }
 472         }
 473         else if (activeDS.sane_param.format != SANE_FRAME_RGB)
 474         {
 475             FIXME("For NATIVE, we support only GRAY and RGB, not %d\n", activeDS.sane_param.format);
 476             psane_cancel (activeDS.deviceHandle);
 477             activeDS.sane_started = FALSE;
 478             activeDS.twCC = TWCC_OPERATIONERROR;
 479             return TWRC_FAILURE;
 480         }
 481
 482         TRACE("Acquiring image %dx%dx%d bits (format=%d last=%d bpl=%d) from sane...\n"
 483               , activeDS.sane_param.pixels_per_line, activeDS.sane_param.lines,
 484               activeDS.sane_param.depth, activeDS.sane_param.format,
 485               activeDS.sane_param.last_frame, activeDS.sane_param.bytes_per_line);
 486
 487         dib_bytes_per_line = ((activeDS.sane_param.bytes_per_line + 3) / 4) * 4;
 488         dib_bytes = activeDS.sane_param.lines * dib_bytes_per_line;
 489
 490         hDIB = GlobalAlloc(GMEM_ZEROINIT, dib_bytes + sizeof(*header) + color_size);
 491         if (hDIB)
 492            header = GlobalLock(hDIB);
 493
 494         if (!header)
 495         {
 496             psane_cancel (activeDS.deviceHandle);
 497             activeDS.sane_started = FALSE;
 498             activeDS.twCC = TWCC_LOWMEMORY;
 499             if (hDIB)
 500                 GlobalFree(hDIB);
 501             return TWRC_FAILURE;
 502         }
 503
 504         header->biSize = sizeof (*header);
 505         header->biWidth = activeDS.sane_param.pixels_per_line;
 506         header->biHeight = activeDS.sane_param.lines;
 507         header->biPlanes = 1;
 508         header->biCompression = BI_RGB;
 509         if (activeDS.sane_param.format == SANE_FRAME_RGB)
 510             header->biBitCount = activeDS.sane_param.depth * 3;
 511         if (activeDS.sane_param.format == SANE_FRAME_GRAY)
 512             header->biBitCount = activeDS.sane_param.depth;
 513         header->biSizeImage = dib_bytes;
 514         header->biXPelsPerMeter = 0;
 515         header->biYPelsPerMeter = 0;
 516         header->biClrUsed = 0;
 517         header->biClrImportant = 0;
 518
 519         p = (BYTE *)(header + 1);
 520
 521         if (color_size > 0)
 522         {
 523             colors = (RGBQUAD *) p;
 524             p += color_size;
 525             for (i = 0; i < (color_size / sizeof(*colors)); i++)
 526                 colors[i].rgbBlue = colors[i].rgbRed = colors[i].rgbGreen = i;
 527         }
 528
 529
 530         /* Sane returns data in top down order.  Acrobat does best with
 531            a bottom up DIB being returned.  */
 532         line = p + (activeDS.sane_param.lines - 1) * dib_bytes_per_line;
 533         for (i = activeDS.sane_param.lines - 1; i >= 0; i--)
 534         {
 535             activeDS.progressWnd = ScanningDialogBox(activeDS.progressWnd,
 536                     ((activeDS.sane_param.lines - 1 - i) * 100)
 537                             /
 538                     (activeDS.sane_param.lines - 1));
 539
 540             status = read_one_line(activeDS.deviceHandle, line,
 541                             activeDS.sane_param.bytes_per_line);
 542             if (status != SANE_STATUS_GOOD)
 543                 break;
 544
 545             line -= dib_bytes_per_line;
 546         }
 547         activeDS.progressWnd = ScanningDialogBox(activeDS.progressWnd, -1);
 548
 549         GlobalUnlock(hDIB);
 550
 551         if (status != SANE_STATUS_GOOD && status != SANE_STATUS_EOF)
 552         {
 553             WARN("psane_read: %s, reading line %d\n", psane_strstatus(status), i);
 554             psane_cancel (activeDS.deviceHandle);
 555             activeDS.sane_started = FALSE;
 556             activeDS.twCC = TWCC_OPERATIONERROR;
 557             GlobalFree(hDIB);
 558             return TWRC_FAILURE;
 559         }
 560
 561         psane_cancel (activeDS.deviceHandle);
 562         activeDS.sane_started = FALSE;
 563         *pHandle = (UINT_PTR)hDIB;
 564         twRC = TWRC_XFERDONE;
 565         activeDS.twCC = TWCC_SUCCESS;
 566         activeDS.currentState = 7;
 567     }
 568     return twRC;
 569 #endif
 570 }