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 "windef.h"
  25 #include "winbase.h"
  26 #include "wingdi.h"
  27 #include "winuser.h"
  28 #include "twain.h"
  29 #include "sane_i.h"
  30 #include "wine/debug.h"
  31
  32 WINE_DEFAULT_DEBUG_CHANNEL(twain);
  33
  34 /* DG_IMAGE/DAT_IMAGEINFO/MSG_GET */
  35 TW_UINT16 SANE_ImageInfoGet (pTW_IDENTITY pOrigin,
  36                               TW_MEMREF pData)
  37 {
  38 #ifndef SONAME_LIBSANE
  39     return TWRC_FAILURE;
  40 #else
  41     TW_UINT16 twRC = TWRC_SUCCESS;
  42     pTW_IMAGEINFO pImageInfo = (pTW_IMAGEINFO) pData;
  43     SANE_Status status;
  44     SANE_Int resolution;
  45
  46     TRACE("DG_IMAGE/DAT_IMAGEINFO/MSG_GET\n");
  47
  48     if (activeDS.currentState != 6 && activeDS.currentState != 7)
  49     {
  50         twRC = TWRC_FAILURE;
  51         activeDS.twCC = TWCC_SEQERROR;
  52     }
  53     else
  54     {
  55         if (activeDS.currentState == 6)
  56         {
  57             /* return general image description information about the image about to be transferred */
  58             status = psane_get_parameters (activeDS.deviceHandle, &activeDS.sane_param);
  59             TRACE("Getting parameters\n");
  60             if (status != SANE_STATUS_GOOD)
  61             {
  62                 WARN("psane_get_parameters: %s\n", psane_strstatus (status));
  63                 psane_cancel (activeDS.deviceHandle);
  64                 activeDS.sane_started = FALSE;
  65                 activeDS.twCC = TWCC_OPERATIONERROR;
  66                 return TWRC_FAILURE;
  67             }
  68             activeDS.sane_param_valid = TRUE;
  69         }
  70
  71         if (sane_option_get_int(activeDS.deviceHandle, "resolution", &resolution) == SANE_STATUS_GOOD)
  72             pImageInfo->XResolution.Whole = pImageInfo->YResolution.Whole = resolution;
  73         else
  74             pImageInfo->XResolution.Whole = pImageInfo->YResolution.Whole = -1;
  75         pImageInfo->XResolution.Frac = 0;
  76         pImageInfo->YResolution.Frac = 0;
  77         pImageInfo->ImageWidth = activeDS.sane_param.pixels_per_line;
  78         pImageInfo->ImageLength = activeDS.sane_param.lines;
  79
  80         TRACE("Bits per Sample %i\n",activeDS.sane_param.depth);
  81         TRACE("Frame Format %i\n",activeDS.sane_param.format);
  82
  83         if (activeDS.sane_param.format == SANE_FRAME_RGB )
  84         {
  85             pImageInfo->BitsPerPixel = activeDS.sane_param.depth * 3;
  86             pImageInfo->Compression = TWCP_NONE;
  87             pImageInfo->Planar = TRUE;
  88             pImageInfo->SamplesPerPixel = 3;
  89             pImageInfo->BitsPerSample[0] = activeDS.sane_param.depth;
  90             pImageInfo->BitsPerSample[1] = activeDS.sane_param.depth;
  91             pImageInfo->BitsPerSample[2] = activeDS.sane_param.depth;
  92             pImageInfo->PixelType = TWPT_RGB;
  93         }
  94         else if (activeDS.sane_param.format == SANE_FRAME_GRAY)
  95         {
  96             pImageInfo->BitsPerPixel = activeDS.sane_param.depth;
  97             pImageInfo->Compression = TWCP_NONE;
  98             pImageInfo->Planar = TRUE;
  99             pImageInfo->SamplesPerPixel = 1;
 100             pImageInfo->BitsPerSample[0] = activeDS.sane_param.depth;
 101             if (activeDS.sane_param.depth == 1)
 102                 pImageInfo->PixelType = TWPT_BW;
 103             else
 104                 pImageInfo->PixelType = TWPT_GRAY;
 105         }
 106         else
 107         {
 108             ERR("Unhandled source frame type %i\n",activeDS.sane_param.format);
 109             twRC = TWRC_FAILURE;
 110             activeDS.twCC = TWCC_SEQERROR;
 111         }
 112     }
 113
 114     return twRC;
 115 #endif
 116 }
 117
 118 /* DG_IMAGE/DAT_IMAGELAYOUT/MSG_GET */
 119 TW_UINT16 SANE_ImageLayoutGet (pTW_IDENTITY pOrigin,
 120                                 TW_MEMREF pData)
 121 {
 122 #ifndef SONAME_LIBSANE
 123     return TWRC_FAILURE;
 124 #else
 125     TW_IMAGELAYOUT *img = (TW_IMAGELAYOUT *) pData;
 126     SANE_Fixed tlx_current;
 127     SANE_Fixed tly_current;
 128     SANE_Fixed brx_current;
 129     SANE_Fixed bry_current;
 130     SANE_Status status;
 131
 132     TRACE("DG_IMAGE/DAT_IMAGELAYOUT/MSG_GET\n");
 133
 134     status = sane_option_probe_scan_area(activeDS.deviceHandle, "tl-x", &tlx_current, NULL, NULL, NULL, NULL);
 135     if (status == SANE_STATUS_GOOD)
 136         status = sane_option_probe_scan_area(activeDS.deviceHandle, "tl-y", &tly_current, NULL, NULL, NULL, NULL);
 137
 138     if (status == SANE_STATUS_GOOD)
 139         status = sane_option_probe_scan_area(activeDS.deviceHandle, "br-x", &brx_current, NULL, NULL, NULL, NULL);
 140
 141     if (status == SANE_STATUS_GOOD)
 142         status = sane_option_probe_scan_area(activeDS.deviceHandle, "br-y", &bry_current, NULL, NULL, NULL, NULL);
 143
 144     if (status != SANE_STATUS_GOOD)
 145     {
 146         activeDS.twCC = sane_status_to_twcc(status);
 147         return TWRC_FAILURE;
 148     }
 149
 150     convert_sane_res_to_twain(SANE_UNFIX(tlx_current), SANE_UNIT_MM, &img->Frame.Left, TWUN_INCHES);
 151     convert_sane_res_to_twain(SANE_UNFIX(tly_current), SANE_UNIT_MM, &img->Frame.Top, TWUN_INCHES);
 152     convert_sane_res_to_twain(SANE_UNFIX(brx_current), SANE_UNIT_MM, &img->Frame.Right, TWUN_INCHES);
 153     convert_sane_res_to_twain(SANE_UNFIX(bry_current), SANE_UNIT_MM, &img->Frame.Bottom, TWUN_INCHES);
 154
 155     img->DocumentNumber = 1;
 156     img->PageNumber = 1;
 157     img->FrameNumber = 1;
 158
 159     activeDS.twCC = TWCC_SUCCESS;
 160     return TWRC_SUCCESS;
 161 #endif
 162 }
 163
 164 /* DG_IMAGE/DAT_IMAGELAYOUT/MSG_GETDEFAULT */
 165 TW_UINT16 SANE_ImageLayoutGetDefault (pTW_IDENTITY pOrigin,
 166                                        TW_MEMREF pData)
 167 {
 168     FIXME ("stub!\n");
 169
 170     return TWRC_FAILURE;
 171 }
 172
 173 /* DG_IMAGE/DAT_IMAGELAYOUT/MSG_RESET */
 174 TW_UINT16 SANE_ImageLayoutReset (pTW_IDENTITY pOrigin,
 175                                   TW_MEMREF pData)
 176 {
 177     FIXME ("stub!\n");
 178
 179     return TWRC_FAILURE;
 180 }
 181
 182 #ifdef SONAME_LIBSANE
 183 static TW_UINT16 set_one_imagecoord(const char *option_name, TW_FIX32 val, BOOL *changed)
 184 {
 185     double d = val.Whole + ((double) val.Frac / 65536.0);
 186     int set_status = 0;
 187     SANE_Status status;
 188     status = sane_option_set_fixed(activeDS.deviceHandle, option_name,
 189              SANE_FIX((d * 254) / 10), &set_status);
 190     if (status != SANE_STATUS_GOOD)
 191     {
 192         activeDS.twCC = sane_status_to_twcc(status);
 193         return TWRC_FAILURE;
 194     }
 195     if (set_status & SANE_INFO_INEXACT)
 196         *changed = TRUE;
 197     return TWRC_SUCCESS;
 198 }
 199 #endif
 200
 201 /* DG_IMAGE/DAT_IMAGELAYOUT/MSG_SET */
 202 TW_UINT16 SANE_ImageLayoutSet (pTW_IDENTITY pOrigin,
 203                                 TW_MEMREF pData)
 204 {
 205 #ifndef SONAME_LIBSANE
 206     return TWRC_FAILURE;
 207 #else
 208     TW_IMAGELAYOUT *img = (TW_IMAGELAYOUT *) pData;
 209     BOOL changed = FALSE;
 210     TW_UINT16 twrc;
 211
 212     TRACE("DG_IMAGE/DAT_IMAGELAYOUT/MSG_SET\n");
 213     TRACE("Frame: [Left %x.%x|Top %x.%x|Right %x.%x|Bottom %x.%x]\n",
 214             img->Frame.Left.Whole, img->Frame.Left.Frac,
 215             img->Frame.Top.Whole, img->Frame.Top.Frac,
 216             img->Frame.Right.Whole, img->Frame.Right.Frac,
 217             img->Frame.Bottom.Whole, img->Frame.Bottom.Frac);
 218
 219     twrc = set_one_imagecoord("tl-x", img->Frame.Left, &changed);
 220     if (twrc != TWRC_SUCCESS)
 221         return (twrc);
 222
 223     twrc = set_one_imagecoord("tl-y", img->Frame.Top, &changed);
 224     if (twrc != TWRC_SUCCESS)
 225         return (twrc);
 226
 227     twrc = set_one_imagecoord("br-x", img->Frame.Right, &changed);
 228     if (twrc != TWRC_SUCCESS)
 229         return (twrc);
 230
 231     twrc = set_one_imagecoord("br-y", img->Frame.Bottom, &changed);
 232     if (twrc != TWRC_SUCCESS)
 233         return (twrc);
 234
 235     activeDS.twCC = TWCC_SUCCESS;
 236     return changed ? TWRC_CHECKSTATUS : TWRC_SUCCESS;
 237 #endif
 238 }
 239
 240 /* DG_IMAGE/DAT_IMAGEMEMXFER/MSG_GET */
 241 TW_UINT16 SANE_ImageMemXferGet (pTW_IDENTITY pOrigin,
 242                                  TW_MEMREF pData)
 243 {
 244 #ifndef SONAME_LIBSANE
 245     return TWRC_FAILURE;
 246 #else
 247     TW_UINT16 twRC = TWRC_SUCCESS;
 248     pTW_IMAGEMEMXFER pImageMemXfer = (pTW_IMAGEMEMXFER) pData;
 249     SANE_Status status = SANE_STATUS_GOOD;
 250
 251     TRACE ("DG_IMAGE/DAT_IMAGEMEMXFER/MSG_GET\n");
 252
 253     if (activeDS.currentState < 6 || activeDS.currentState > 7)
 254     {
 255         twRC = TWRC_FAILURE;
 256         activeDS.twCC = TWCC_SEQERROR;
 257     }
 258     else
 259     {
 260         LPBYTE buffer;
 261         int buff_len = 0;
 262         int consumed_len = 0;
 263         LPBYTE ptr;
 264         int rows;
 265
 266         /* Transfer an image from the source to the application */
 267         if (activeDS.currentState == 6)
 268         {
 269
 270             /* trigger scanning dialog */
 271             activeDS.progressWnd = ScanningDialogBox(NULL,0);
 272
 273             ScanningDialogBox(activeDS.progressWnd,0);
 274
 275             if (! activeDS.sane_started)
 276             {
 277                 status = psane_start (activeDS.deviceHandle);
 278                 if (status != SANE_STATUS_GOOD)
 279                 {
 280                     WARN("psane_start: %s\n", psane_strstatus (status));
 281                     psane_cancel (activeDS.deviceHandle);
 282                     activeDS.twCC = TWCC_OPERATIONERROR;
 283                     return TWRC_FAILURE;
 284                 }
 285                 activeDS.sane_started = TRUE;
 286             }
 287
 288             status = psane_get_parameters (activeDS.deviceHandle,
 289                     &activeDS.sane_param);
 290             activeDS.sane_param_valid = TRUE;
 291
 292             if (status != SANE_STATUS_GOOD)
 293             {
 294                 WARN("psane_get_parameters: %s\n", psane_strstatus (status));
 295                 psane_cancel (activeDS.deviceHandle);
 296                 activeDS.sane_started = FALSE;
 297                 activeDS.twCC = TWCC_OPERATIONERROR;
 298                 return TWRC_FAILURE;
 299             }
 300
 301             TRACE("Acquiring image %dx%dx%d bits (format=%d last=%d) from sane...\n"
 302               , activeDS.sane_param.pixels_per_line, activeDS.sane_param.lines,
 303               activeDS.sane_param.depth, activeDS.sane_param.format,
 304               activeDS.sane_param.last_frame);
 305
 306             activeDS.currentState = 7;
 307         }
 308
 309         /* access memory buffer */
 310         if (pImageMemXfer->Memory.Length < activeDS.sane_param.bytes_per_line)
 311         {
 312             psane_cancel (activeDS.deviceHandle);
 313             activeDS.sane_started = FALSE;
 314             activeDS.twCC = TWCC_BADVALUE;
 315             return TWRC_FAILURE;
 316         }
 317
 318         if (pImageMemXfer->Memory.Flags & TWMF_HANDLE)
 319         {
 320             FIXME("Memory Handle, may not be locked correctly\n");
 321             buffer = LocalLock(pImageMemXfer->Memory.TheMem);
 322         }
 323         else
 324             buffer = pImageMemXfer->Memory.TheMem;
 325
 326         memset(buffer,0,pImageMemXfer->Memory.Length);
 327
 328         ptr = buffer;
 329         consumed_len = 0;
 330         rows = pImageMemXfer->Memory.Length / activeDS.sane_param.bytes_per_line;
 331
 332         /* must fill full lines */
 333         while (consumed_len < (activeDS.sane_param.bytes_per_line*rows) &&
 334                 status == SANE_STATUS_GOOD)
 335         {
 336             status = psane_read (activeDS.deviceHandle, ptr,
 337                     (activeDS.sane_param.bytes_per_line*rows) - consumed_len ,
 338                     &buff_len);
 339             consumed_len += buff_len;
 340             ptr += buff_len;
 341         }
 342
 343         if (status == SANE_STATUS_GOOD || status == SANE_STATUS_EOF)
 344         {
 345             pImageMemXfer->Compression = TWCP_NONE;
 346             pImageMemXfer->BytesPerRow = activeDS.sane_param.bytes_per_line;
 347             pImageMemXfer->Columns = activeDS.sane_param.pixels_per_line;
 348             pImageMemXfer->Rows = rows;
 349             pImageMemXfer->XOffset = 0;
 350             pImageMemXfer->YOffset = 0;
 351             pImageMemXfer->BytesWritten = consumed_len;
 352
 353             ScanningDialogBox(activeDS.progressWnd, consumed_len);
 354
 355             if (status == SANE_STATUS_EOF)
 356             {
 357                 ScanningDialogBox(activeDS.progressWnd, -1);
 358                 TRACE("psane_read: %s\n", psane_strstatus (status));
 359                 psane_cancel (activeDS.deviceHandle);
 360                 activeDS.sane_started = FALSE;
 361                 twRC = TWRC_XFERDONE;
 362             }
 363             activeDS.twCC = TWRC_SUCCESS;
 364         }
 365         else if (status != SANE_STATUS_EOF)
 366         {
 367             ScanningDialogBox(activeDS.progressWnd, -1);
 368             WARN("psane_read: %s\n", psane_strstatus (status));
 369             psane_cancel (activeDS.deviceHandle);
 370             activeDS.sane_started = FALSE;
 371             activeDS.twCC = TWCC_OPERATIONERROR;
 372             twRC = TWRC_FAILURE;
 373         }
 374     }
 375
 376     if (pImageMemXfer->Memory.Flags & TWMF_HANDLE)
 377         LocalUnlock(pImageMemXfer->Memory.TheMem);
 378
 379     return twRC;
 380 #endif
 381 }
 382
 383 #ifdef SONAME_LIBSANE
 384 static SANE_Status read_one_line(SANE_Handle h, BYTE *line, int len)
 385 {
 386     int read_len;
 387     SANE_Status status;
 388
 389     for (;;)
 390     {
 391         read_len = 0;
 392         status = psane_read (activeDS.deviceHandle, line, len, &read_len);
 393         if (status != SANE_STATUS_GOOD)
 394             break;
 395
 396         if (read_len == len)
 397             break;
 398
 399         line += read_len;
 400         len -= read_len;
 401     }
 402
 403     return status;
 404 }
 405 #endif
 406
 407 /* DG_IMAGE/DAT_IMAGENATIVEXFER/MSG_GET */
 408 TW_UINT16 SANE_ImageNativeXferGet (pTW_IDENTITY pOrigin,
 409                                     TW_MEMREF pData)
 410 {
 411 #ifndef SONAME_LIBSANE
 412     return TWRC_FAILURE;
 413 #else
 414     TW_UINT16 twRC = TWRC_SUCCESS;
 415     pTW_UINT32 pHandle = (pTW_UINT32) pData;
 416     SANE_Status status;
 417     HANDLE hDIB;
 418     BITMAPINFOHEADER *header = NULL;
 419     int dib_bytes;
 420     int dib_bytes_per_line;
 421     BYTE *line;
 422     RGBQUAD *colors;
 423     int color_size = 0;
 424     int i;
 425     BYTE *p;
 426
 427     TRACE("DG_IMAGE/DAT_IMAGENATIVEXFER/MSG_GET\n");
 428
 429     if (activeDS.currentState != 6)
 430     {
 431         twRC = TWRC_FAILURE;
 432         activeDS.twCC = TWCC_SEQERROR;
 433     }
 434     else
 435     {
 436         /* Transfer an image from the source to the application */
 437         if (! activeDS.sane_started)
 438         {
 439             status = psane_start (activeDS.deviceHandle);
 440             if (status != SANE_STATUS_GOOD)
 441             {
 442                 WARN("psane_start: %s\n", psane_strstatus (status));
 443                 psane_cancel (activeDS.deviceHandle);
 444                 activeDS.twCC = TWCC_OPERATIONERROR;
 445                 return TWRC_FAILURE;
 446             }
 447             activeDS.sane_started = TRUE;
 448         }
 449
 450         status = psane_get_parameters (activeDS.deviceHandle, &activeDS.sane_param);
 451         activeDS.sane_param_valid = TRUE;
 452         if (status != SANE_STATUS_GOOD)
 453         {
 454             WARN("psane_get_parameters: %s\n", psane_strstatus (status));
 455             psane_cancel (activeDS.deviceHandle);
 456             activeDS.sane_started = FALSE;
 457             activeDS.twCC = TWCC_OPERATIONERROR;
 458             return TWRC_FAILURE;
 459         }
 460
 461         if (activeDS.sane_param.format == SANE_FRAME_GRAY)
 462         {
 463             if (activeDS.sane_param.depth == 8)
 464                 color_size = (1 << 8) * sizeof(*colors);
 465             else if (activeDS.sane_param.depth == 1)
 466                 ;
 467             else
 468             {
 469                 FIXME("For NATIVE, we support only 1 bit monochrome and 8 bit Grayscale, not %d\n", activeDS.sane_param.depth);
 470                 psane_cancel (activeDS.deviceHandle);
 471                 activeDS.sane_started = FALSE;
 472                 activeDS.twCC = TWCC_OPERATIONERROR;
 473                 return TWRC_FAILURE;
 474             }
 475         }
 476         else if (activeDS.sane_param.format != SANE_FRAME_RGB)
 477         {
 478             FIXME("For NATIVE, we support only GRAY and RGB, not %d\n", activeDS.sane_param.format);
 479             psane_cancel (activeDS.deviceHandle);
 480             activeDS.sane_started = FALSE;
 481             activeDS.twCC = TWCC_OPERATIONERROR;
 482             return TWRC_FAILURE;
 483         }
 484
 485         TRACE("Acquiring image %dx%dx%d bits (format=%d last=%d bpl=%d) from sane...\n"
 486               , activeDS.sane_param.pixels_per_line, activeDS.sane_param.lines,
 487               activeDS.sane_param.depth, activeDS.sane_param.format,
 488               activeDS.sane_param.last_frame, activeDS.sane_param.bytes_per_line);
 489
 490         dib_bytes_per_line = ((activeDS.sane_param.bytes_per_line + 3) / 4) * 4;
 491         dib_bytes = activeDS.sane_param.lines * dib_bytes_per_line;
 492
 493         hDIB = GlobalAlloc(GMEM_ZEROINIT, dib_bytes + sizeof(*header) + color_size);
 494         if (hDIB)
 495            header = GlobalLock(hDIB);
 496
 497         if (!header)
 498         {
 499             psane_cancel (activeDS.deviceHandle);
 500             activeDS.sane_started = FALSE;
 501             activeDS.twCC = TWCC_LOWMEMORY;
 502             if (hDIB)
 503                 GlobalFree(hDIB);
 504             return TWRC_FAILURE;
 505         }
 506
 507         header->biSize = sizeof (*header);
 508         header->biWidth = activeDS.sane_param.pixels_per_line;
 509         header->biHeight = activeDS.sane_param.lines;
 510         header->biPlanes = 1;
 511         header->biCompression = BI_RGB;
 512         if (activeDS.sane_param.format == SANE_FRAME_RGB)
 513             header->biBitCount = activeDS.sane_param.depth * 3;
 514         if (activeDS.sane_param.format == SANE_FRAME_GRAY)
 515             header->biBitCount = activeDS.sane_param.depth;
 516         header->biSizeImage = dib_bytes;
 517         header->biXPelsPerMeter = 0;
 518         header->biYPelsPerMeter = 0;
 519         header->biClrUsed = 0;
 520         header->biClrImportant = 0;
 521
 522         p = (BYTE *)(header + 1);
 523
 524         if (color_size > 0)
 525         {
 526             colors = (RGBQUAD *) p;
 527             p += color_size;
 528             for (i = 0; i < (color_size / sizeof(*colors)); i++)
 529                 colors[i].rgbBlue = colors[i].rgbRed = colors[i].rgbGreen = i;
 530         }
 531
 532
 533         /* Sane returns data in top down order.  Acrobat does best with
 534            a bottom up DIB being returned.  */
 535         line = p + (activeDS.sane_param.lines - 1) * dib_bytes_per_line;
 536         for (i = activeDS.sane_param.lines - 1; i >= 0; i--)
 537         {
 538             activeDS.progressWnd = ScanningDialogBox(activeDS.progressWnd,
 539                     ((activeDS.sane_param.lines - 1 - i) * 100)
 540                             /
 541                     (activeDS.sane_param.lines - 1));
 542
 543             status = read_one_line(activeDS.deviceHandle, line,
 544                             activeDS.sane_param.bytes_per_line);
 545             if (status != SANE_STATUS_GOOD)
 546                 break;
 547
 548             line -= dib_bytes_per_line;
 549         }
 550         activeDS.progressWnd = ScanningDialogBox(activeDS.progressWnd, -1);
 551
 552         GlobalUnlock(hDIB);
 553
 554         if (status != SANE_STATUS_GOOD && status != SANE_STATUS_EOF)
 555         {
 556             WARN("psane_read: %s, reading line %d\n", psane_strstatus(status), i);
 557             psane_cancel (activeDS.deviceHandle);
 558             activeDS.sane_started = FALSE;
 559             activeDS.twCC = TWCC_OPERATIONERROR;
 560             GlobalFree(hDIB);
 561             return TWRC_FAILURE;
 562         }
 563
 564         psane_cancel (activeDS.deviceHandle);
 565         activeDS.sane_started = FALSE;
 566         *pHandle = (UINT_PTR)hDIB;
 567         twRC = TWRC_XFERDONE;
 568         activeDS.twCC = TWCC_SUCCESS;
 569         activeDS.currentState = 7;
 570     }
 571     return twRC;
 572 #endif
 573 }