dlls/gphoto2.ds/gphoto2_main.c

   1 /*
   2  * SANE.DS functions
   3  *
   4  * Copyright 2000 Shi Quan He <shiquan@cyberdude.com>
   5  * Copyright 2006 Marcus Meissner
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "config.h"
  23
  24 #include <stdarg.h>
  25 #include <stdio.h>
  26 #ifdef HAVE_UNISTD_H
  27 # include <unistd.h>
  28 #endif
  29 #include <stdlib.h>
  30
  31 #include "windef.h"
  32 #include "winbase.h"
  33 #include "twain.h"
  34 #include "gphoto2_i.h"
  35 #include "wine/debug.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(twain);
  38
  39
  40 static void
  41 load_filesystem(const char *folder) {
  42 #ifdef HAVE_GPHOTO2
  43     int         i, count, ret;
  44     CameraList  *list;
  45
  46     ret = gp_list_new (&list);
  47     if (ret < GP_OK)
  48         return;
  49     ret = gp_camera_folder_list_files (activeDS.camera, folder, list, activeDS.context);
  50     if (ret < GP_OK) {
  51         gp_list_free (list);
  52         return;
  53     }
  54     count = gp_list_count (list);
  55     if (count < GP_OK) {
  56         gp_list_free (list);
  57         return;
  58     }
  59     for (i = 0; i < count; i++) {
  60         const char *name;
  61         struct gphoto2_file *gpfile;
  62
  63         ret = gp_list_get_name (list, i, &name);
  64         if (ret < GP_OK)
  65             continue;
  66         gpfile = malloc(sizeof(struct gphoto2_file));
  67         if (!gpfile)
  68             continue;
  69         TRACE("adding %s/%s\n", folder, name);
  70         gpfile->folder = strdup(folder);
  71         gpfile->filename = strdup(name);
  72         gpfile->download = FALSE;
  73         list_add_tail( &activeDS.files, &gpfile->entry );
  74     }
  75     gp_list_reset (list);
  76
  77     ret = gp_camera_folder_list_folders (activeDS.camera, folder, list, activeDS.context);
  78     if (ret < GP_OK) {
  79         FIXME("list_folders failed\n");
  80         gp_list_free (list);
  81         return;
  82     }
  83     count = gp_list_count (list);
  84     if (count < GP_OK) {
  85         FIXME("list_folders failed\n");
  86         gp_list_free (list);
  87         return;
  88     }
  89     for (i = 0; i < count; i++) {
  90         const char *name;
  91         char *newfolder;
  92         ret = gp_list_get_name (list, i, &name);
  93         if (ret < GP_OK)
  94             continue;
  95         TRACE("recursing into %s\n", name);
  96         newfolder = malloc(strlen(folder)+1+strlen(name)+1);
  97         if (!strcmp(folder,"/"))
  98             sprintf (newfolder, "/%s", name);
  99         else
 100             sprintf (newfolder, "%s/%s", folder, name);
 101         load_filesystem (newfolder); /* recurse ... happily */
 102     }
 103     gp_list_free (list);
 104 #endif
 105 }
 106
 107 /* DG_CONTROL/DAT_CAPABILITY/MSG_GET */
 108 static TW_UINT16 GPHOTO2_CapabilityGet (pTW_IDENTITY pOrigin, TW_MEMREF pData)
 109 {
 110     pTW_CAPABILITY pCapability = (pTW_CAPABILITY) pData;
 111
 112     TRACE("DG_CONTROL/DAT_CAPABILITY/MSG_GET\n");
 113     if (activeDS.currentState < 4 || activeDS.currentState > 7) {
 114         activeDS.twCC = TWCC_SEQERROR;
 115         return TWRC_FAILURE;
 116     }
 117     activeDS.twCC = GPHOTO2_SaneCapability (pCapability, MSG_GET);
 118     return (activeDS.twCC == TWCC_SUCCESS)?TWRC_SUCCESS:TWRC_FAILURE;
 119 }
 120
 121 /* DG_CONTROL/DAT_CAPABILITY/MSG_GETCURRENT */
 122 static TW_UINT16 GPHOTO2_CapabilityGetCurrent (pTW_IDENTITY pOrigin, TW_MEMREF pData)
 123 {
 124     pTW_CAPABILITY pCapability = (pTW_CAPABILITY) pData;
 125
 126     TRACE("DG_CONTROL/DAT_CAPABILITY/MSG_GETCURRENT\n");
 127
 128     if (activeDS.currentState < 4 || activeDS.currentState > 7) {
 129         activeDS.twCC = TWCC_SEQERROR;
 130         return TWRC_FAILURE;
 131     }
 132     activeDS.twCC = GPHOTO2_SaneCapability (pCapability, MSG_GETCURRENT);
 133     return (activeDS.twCC == TWCC_SUCCESS)?TWRC_SUCCESS:TWRC_FAILURE;
 134 }
 135
 136 /* DG_CONTROL/DAT_CAPABILITY/MSG_GETDEFAULT */
 137 static TW_UINT16 GPHOTO2_CapabilityGetDefault (pTW_IDENTITY pOrigin, TW_MEMREF pData)
 138 {
 139     pTW_CAPABILITY pCapability = (pTW_CAPABILITY) pData;
 140
 141     TRACE("DG_CONTROL/DAT_CAPABILITY/MSG_GETDEFAULT\n");
 142     if (activeDS.currentState < 4 || activeDS.currentState > 7) {
 143         activeDS.twCC = TWCC_SEQERROR;
 144         return TWRC_FAILURE;
 145     }
 146     activeDS.twCC = GPHOTO2_SaneCapability (pCapability, MSG_GETDEFAULT);
 147     return (activeDS.twCC == TWCC_SUCCESS)?TWRC_SUCCESS:TWRC_FAILURE;
 148 }
 149
 150 /* DG_CONTROL/DAT_CAPABILITY/MSG_QUERYSUPPORT */
 151 static TW_UINT16 GPHOTO2_CapabilityQuerySupport (pTW_IDENTITY pOrigin,
 152                                         TW_MEMREF pData)
 153 {
 154     FIXME ("stub!\n");
 155
 156     return TWRC_FAILURE;
 157 }
 158
 159 /* DG_CONTROL/DAT_CAPABILITY/MSG_RESET */
 160 static TW_UINT16 GPHOTO2_CapabilityReset (pTW_IDENTITY pOrigin,
 161                                  TW_MEMREF pData)
 162 {
 163     pTW_CAPABILITY pCapability = (pTW_CAPABILITY) pData;
 164
 165     TRACE("DG_CONTROL/DAT_CAPABILITY/MSG_RESET\n");
 166
 167     if (activeDS.currentState < 4 || activeDS.currentState > 7) {
 168         activeDS.twCC = TWCC_SEQERROR;
 169         return TWRC_FAILURE;
 170     }
 171     activeDS.twCC = GPHOTO2_SaneCapability (pCapability, MSG_RESET);
 172     return (activeDS.twCC == TWCC_SUCCESS)?TWRC_SUCCESS:TWRC_FAILURE;
 173 }
 174
 175 /* DG_CONTROL/DAT_CAPABILITY/MSG_SET */
 176 static TW_UINT16 GPHOTO2_CapabilitySet (pTW_IDENTITY pOrigin,
 177                                TW_MEMREF pData)
 178 {
 179     pTW_CAPABILITY pCapability = (pTW_CAPABILITY) pData;
 180
 181     TRACE ("DG_CONTROL/DAT_CAPABILITY/MSG_SET\n");
 182
 183     if (activeDS.currentState != 4) {
 184         activeDS.twCC = TWCC_SEQERROR;
 185         return TWRC_FAILURE;
 186     }
 187     activeDS.twCC = GPHOTO2_SaneCapability (pCapability, MSG_SET);
 188     return (activeDS.twCC == TWCC_SUCCESS)?TWRC_SUCCESS:TWRC_FAILURE;
 189 }
 190
 191 /* DG_CONTROL/DAT_CUSTOMDSDATA/MSG_GET */
 192 static TW_UINT16 GPHOTO2_CustomDSDataGet (pTW_IDENTITY pOrigin,
 193                                 TW_MEMREF pData)
 194 {
 195     FIXME ("stub!\n");
 196
 197     return TWRC_FAILURE;
 198 }
 199
 200 /* DG_CONTROL/DAT_CUSTOMDSDATA/MSG_SET */
 201 static TW_UINT16 GPHOTO2_CustomDSDataSet (pTW_IDENTITY pOrigin,
 202                                  TW_MEMREF pData)
 203 {
 204     FIXME ("stub!\n");
 205
 206     return TWRC_FAILURE;
 207 }
 208
 209 /* DG_CONTROL/DAT_FILESYSTEM/MSG_CHANGEDIRECTORY */
 210 static TW_UINT16 GPHOTO2_ChangeDirectory (pTW_IDENTITY pOrigin,
 211                                  TW_MEMREF pData)
 212 {
 213     FIXME ("stub!\n");
 214
 215     return TWRC_FAILURE;
 216 }
 217
 218 /* DG_CONTROL/DAT_FILESYSTEM/MSG_CREATEDIRECTORY */
 219 static TW_UINT16 GPHOTO2_CreateDirectory (pTW_IDENTITY pOrigin,
 220                                  TW_MEMREF pData)
 221 {
 222     FIXME ("stub!\n");
 223
 224     return TWRC_FAILURE;
 225 }
 226
 227 /* DG_CONTROL/DAT_FILESYSTEM/MSG_DELETE */
 228 static TW_UINT16 GPHOTO2_FileSystemDelete (pTW_IDENTITY pOrigin,
 229                                   TW_MEMREF pData)
 230 {
 231     FIXME ("stub!\n");
 232
 233     return TWRC_FAILURE;
 234 }
 235
 236 /* DG_CONTROL/DAT_FILESYSTEM/MSG_FORMATMEDIA */
 237 static TW_UINT16 GPHOTO2_FormatMedia (pTW_IDENTITY pOrigin,
 238                              TW_MEMREF pData)
 239 {
 240     FIXME ("stub!\n");
 241
 242     return TWRC_FAILURE;
 243 }
 244
 245 /* DG_CONTROL/DAT_FILESYSTEM/MSG_GETCLOSE */
 246 static TW_UINT16 GPHOTO2_FileSystemGetClose (pTW_IDENTITY pOrigin,
 247                                     TW_MEMREF pData)
 248 {
 249     FIXME ("stub!\n");
 250
 251     return TWRC_FAILURE;
 252 }
 253
 254 /* DG_CONTROL/DAT_FILESYSTEM/MSG_GETFIRSTFILE */
 255 static TW_UINT16 GPHOTO2_FileSystemGetFirstFile (pTW_IDENTITY pOrigin,
 256
 257                                         TW_MEMREF pData)
 258 {
 259     FIXME ("stub!\n");
 260
 261     return TWRC_FAILURE;
 262 }
 263
 264 /* DG_CONTROL/DAT_FILESYSTEM/MSG_GETINFO */
 265 static TW_UINT16 GPHOTO2_FileSystemGetInfo (pTW_IDENTITY pOrigin,
 266                                    TW_MEMREF pData)
 267 {
 268     FIXME ("stub!\n");
 269
 270     return TWRC_FAILURE;
 271 }
 272
 273 /* DG_CONTROL/DAT_FILESYSTEM/MSG_GETNEXTFILE */
 274 static TW_UINT16 GPHOTO2_FileSystemGetNextFile (pTW_IDENTITY pOrigin,
 275
 276                                        TW_MEMREF pData)
 277 {
 278     FIXME ("stub!\n");
 279
 280     return TWRC_FAILURE;
 281 }
 282
 283 /* DG_CONTROL/DAT_FILESYSTEM/MSG_RENAME */
 284 static TW_UINT16 GPHOTO2_FileSystemRename (pTW_IDENTITY pOrigin,
 285                                   TW_MEMREF pData)
 286 {
 287     FIXME ("stub!\n");
 288
 289     return TWRC_FAILURE;
 290 }
 291
 292 /* DG_CONTROL/DAT_EVENT/MSG_PROCESSEVENT */
 293 static TW_UINT16 GPHOTO2_ProcessEvent (pTW_IDENTITY pOrigin,
 294                               TW_MEMREF pData)
 295 {
 296     TW_UINT16 twRC = TWRC_SUCCESS;
 297     pTW_EVENT pEvent = (pTW_EVENT) pData;
 298
 299     TRACE("DG_CONTROL/DAT_EVENT/MSG_PROCESSEVENT\n");
 300
 301     if (activeDS.currentState < 5 || activeDS.currentState > 7) {
 302         activeDS.twCC = TWCC_SEQERROR;
 303         return TWRC_FAILURE;
 304     }
 305
 306     if (activeDS.pendingEvent.TWMessage != MSG_NULL) {
 307         pEvent->TWMessage = activeDS.pendingEvent.TWMessage;
 308         activeDS.pendingEvent.TWMessage = MSG_NULL;
 309         twRC = TWRC_SUCCESS;
 310     } else {
 311         pEvent->TWMessage = MSG_NULL;  /* no message to the application */
 312         twRC = TWRC_NOTDSEVENT;
 313     }
 314     activeDS.twCC = TWCC_SUCCESS;
 315     return twRC;
 316 }
 317
 318 /* DG_CONTROL/DAT_PASSTHRU/MSG_PASSTHRU */
 319 static TW_UINT16 GPHOTO2_PassThrough (pTW_IDENTITY pOrigin,
 320                              TW_MEMREF pData)
 321 {
 322     FIXME ("stub!\n");
 323
 324     return TWRC_FAILURE;
 325 }
 326
 327 /* DG_CONTROL/DAT_PENDINGXFERS/MSG_ENDXFER */
 328 static TW_UINT16 GPHOTO2_PendingXfersEndXfer (pTW_IDENTITY pOrigin,
 329                                      TW_MEMREF pData)
 330 {
 331     TW_UINT32 count;
 332     pTW_PENDINGXFERS pPendingXfers = (pTW_PENDINGXFERS) pData;
 333     struct gphoto2_file *file;
 334
 335     TRACE("DG_CONTROL/DAT_PENDINGXFERS/MSG_ENDXFER\n");
 336
 337     if (activeDS.currentState != 6 && activeDS.currentState != 7) {
 338         activeDS.twCC = TWCC_SEQERROR;
 339         return TWRC_FAILURE;
 340     }
 341     count = 0;
 342     LIST_FOR_EACH_ENTRY( file, &activeDS.files, struct gphoto2_file, entry ) {
 343         if (file->download)
 344             count++;
 345     }
 346     TRACE("count = %d\n", count);
 347     pPendingXfers->Count = count;
 348     if (pPendingXfers->Count != 0) {
 349         activeDS.currentState = 6;
 350     } else {
 351         activeDS.currentState = 5;
 352         /* Notify the application that it can close the data source */
 353         activeDS.pendingEvent.TWMessage = MSG_CLOSEDSREQ;
 354         /* close any Transferring dialog */
 355         TransferringDialogBox(activeDS.progressWnd,-1);
 356         activeDS.progressWnd = 0;
 357     }
 358     activeDS.twCC = TWCC_SUCCESS;
 359     return TWRC_SUCCESS;
 360 }
 361
 362 /* DG_CONTROL/DAT_PENDINGXFERS/MSG_GET */
 363 static TW_UINT16 GPHOTO2_PendingXfersGet (pTW_IDENTITY pOrigin,
 364                                  TW_MEMREF pData)
 365 {
 366     TW_UINT32 count;
 367     pTW_PENDINGXFERS pPendingXfers = (pTW_PENDINGXFERS) pData;
 368     struct gphoto2_file *file;
 369
 370     TRACE("DG_CONTROL/DAT_PENDINGXFERS/MSG_GET\n");
 371
 372     if (activeDS.currentState < 4 || activeDS.currentState > 7) {
 373         activeDS.twCC = TWCC_SEQERROR;
 374         return TWRC_FAILURE;
 375     }
 376
 377     count = 0;
 378     LIST_FOR_EACH_ENTRY( file, &activeDS.files, struct gphoto2_file, entry ) {
 379         if (file->download)
 380             count++;
 381     }
 382     TRACE("count = %d\n", count);
 383     pPendingXfers->Count = count;
 384     activeDS.twCC = TWCC_SUCCESS;
 385     return TWRC_SUCCESS;
 386 }
 387
 388 /* DG_CONTROL/DAT_PENDINGXFERS/MSG_RESET */
 389 static TW_UINT16 GPHOTO2_PendingXfersReset (pTW_IDENTITY pOrigin,
 390                                    TW_MEMREF pData)
 391 {
 392     pTW_PENDINGXFERS pPendingXfers = (pTW_PENDINGXFERS) pData;
 393
 394     TRACE("DG_CONTROL/DAT_PENDINGXFERS/MSG_RESET\n");
 395
 396     if (activeDS.currentState != 6) {
 397         activeDS.twCC = TWCC_SEQERROR;
 398         return TWRC_FAILURE;
 399     }
 400     pPendingXfers->Count = 0;
 401     activeDS.currentState = 5;
 402     activeDS.twCC = TWCC_SUCCESS;
 403     return TWRC_SUCCESS;
 404 }
 405
 406 /* DG_CONTROL/DAT_SETUPFILEXFER/MSG_GET */
 407 static TW_UINT16 GPHOTO2_SetupFileXferGet (pTW_IDENTITY pOrigin,
 408                                   TW_MEMREF pData)
 409 {
 410     FIXME ("stub!\n");
 411
 412     return TWRC_FAILURE;
 413 }
 414
 415 /* DG_CONTROL/DAT_SETUPXFER/MSG_GETDEFAULT */
 416 static TW_UINT16 GPHOTO2_SetupFileXferGetDefault (pTW_IDENTITY pOrigin,
 417                                          TW_MEMREF pData)
 418 {
 419     FIXME ("stub!\n");
 420
 421     return TWRC_FAILURE;
 422 }
 423
 424
 425 /* DG_CONTROL/DAT_SETUPFILEXFER/MSG_RESET */
 426 static TW_UINT16 GPHOTO2_SetupFileXferReset (pTW_IDENTITY pOrigin,
 427                                     TW_MEMREF pData)
 428 {
 429     FIXME ("stub!\n");
 430
 431     return TWRC_FAILURE;
 432 }
 433
 434 /* DG_CONTROL/DAT_SETUPFILEXFER/MSG_SET */
 435 static TW_UINT16 GPHOTO2_SetupFileXferSet (pTW_IDENTITY pOrigin,
 436                                   TW_MEMREF pData)
 437 {
 438     FIXME ("stub!\n");
 439
 440     return TWRC_FAILURE;
 441 }
 442
 443 /* DG_CONTROL/DAT_SETUPMEMXFER/MSG_GET */
 444 static TW_UINT16 GPHOTO2_SetupMemXferGet (pTW_IDENTITY pOrigin,
 445                                   TW_MEMREF pData)
 446 {
 447     pTW_SETUPMEMXFER  pSetupMemXfer = (pTW_SETUPMEMXFER)pData;
 448
 449     TRACE("DG_CONTROL/DAT_SETUPMEMXFER/MSG_GET\n");
 450     /* Guessing */
 451     pSetupMemXfer->MinBufSize = 20000;
 452     pSetupMemXfer->MaxBufSize = 80000;
 453     pSetupMemXfer->Preferred = 40000;
 454     return TWRC_SUCCESS;
 455 }
 456
 457 /* DG_CONTROL/DAT_STATUS/MSG_GET */
 458 static TW_UINT16 GPHOTO2_GetDSStatus (pTW_IDENTITY pOrigin,
 459                              TW_MEMREF pData)
 460 {
 461     pTW_STATUS pSourceStatus = (pTW_STATUS) pData;
 462
 463     TRACE ("DG_CONTROL/DAT_STATUS/MSG_GET\n");
 464     pSourceStatus->ConditionCode = activeDS.twCC;
 465     /* Reset the condition code */
 466     activeDS.twCC = TWCC_SUCCESS;
 467     return TWRC_SUCCESS;
 468 }
 469
 470 /* DG_CONTROL/DAT_USERINTERFACE/MSG_DISABLEDS */
 471 static TW_UINT16 GPHOTO2_DisableDSUserInterface (pTW_IDENTITY pOrigin,
 472                                         TW_MEMREF pData)
 473 {
 474     TRACE ("DG_CONTROL/DAT_USERINTERFACE/MSG_DISABLEDS\n");
 475
 476     if (activeDS.currentState != 5) {
 477         activeDS.twCC = TWCC_SEQERROR;
 478         return TWRC_FAILURE;
 479     }
 480     activeDS.currentState = 4;
 481     activeDS.twCC = TWCC_SUCCESS;
 482     return TWRC_SUCCESS;
 483 }
 484
 485 /* DG_CONTROL/DAT_USERINTERFACE/MSG_ENABLEDS */
 486 static TW_UINT16 GPHOTO2_EnableDSUserInterface (pTW_IDENTITY pOrigin,
 487                                        TW_MEMREF pData)
 488 {
 489     pTW_USERINTERFACE pUserInterface = (pTW_USERINTERFACE) pData;
 490
 491     load_filesystem("/");
 492
 493     TRACE ("DG_CONTROL/DAT_USERINTERFACE/MSG_ENABLEDS\n");
 494     if (activeDS.currentState != 4) {
 495         FIXME("Sequence error %d\n", activeDS.currentState);
 496         activeDS.twCC = TWCC_SEQERROR;
 497         return TWRC_FAILURE;
 498     }
 499     activeDS.hwndOwner = pUserInterface->hParent;
 500     if (pUserInterface->ShowUI)
 501     {
 502         BOOL rc;
 503         activeDS.currentState = 5; /* Transitions to state 5 */
 504         rc = DoCameraUI();
 505         if (!rc) {
 506             activeDS.pendingEvent.TWMessage = MSG_CLOSEDSREQ;
 507         } else {
 508             /* FIXME: The GUI should have marked the files to download... */
 509             activeDS.pendingEvent.TWMessage = MSG_XFERREADY;
 510             activeDS.currentState = 6; /* Transitions to state 6 directly */
 511         }
 512     } else {
 513         /* no UI will be displayed, so source is ready to transfer data */
 514         activeDS.pendingEvent.TWMessage = MSG_XFERREADY;
 515         activeDS.currentState = 6; /* Transitions to state 6 directly */
 516     }
 517     activeDS.hwndOwner = pUserInterface->hParent;
 518     activeDS.twCC = TWCC_SUCCESS;
 519     return TWRC_SUCCESS;
 520 }
 521
 522 /* DG_CONTROL/DAT_USERINTERFACE/MSG_ENABLEDSUIONLY */
 523 static TW_UINT16 GPHOTO2_EnableDSUIOnly (pTW_IDENTITY pOrigin,
 524                                 TW_MEMREF pData)
 525 {
 526     TRACE("DG_CONTROL/DAT_USERINTERFACE/MSG_ENABLEDSUIONLY\n");
 527
 528     if (activeDS.currentState != 4) {
 529         activeDS.twCC = TWCC_SEQERROR;
 530         return TWRC_FAILURE;
 531     }
 532     /* FIXME: we should replace xscanimage with our own UI */
 533     FIXME ("not implemented!\n");
 534     activeDS.currentState = 5;
 535     activeDS.twCC = TWCC_SUCCESS;
 536     return TWRC_SUCCESS;
 537 }
 538
 539 /* DG_CONTROL/DAT_XFERGROUP/MSG_GET */
 540 static TW_UINT16 GPHOTO2_XferGroupGet (pTW_IDENTITY pOrigin,
 541                               TW_MEMREF pData)
 542 {
 543     FIXME ("stub!\n");
 544     return TWRC_FAILURE;
 545 }
 546
 547 /* DG_CONTROL/DAT_XFERGROUP/MSG_SET */
 548 static TW_UINT16 GPHOTO2_XferGroupSet (pTW_IDENTITY pOrigin,
 549                                   TW_MEMREF pData)
 550 {
 551     FIXME ("stub!\n");
 552     return TWRC_FAILURE;
 553 }
 554
 555 HINSTANCE GPHOTO2_instance;
 556
 557 BOOL WINAPI DllMain (HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
 558 {
 559     TRACE("%p,%x,%p\n", hinstDLL, fdwReason, lpvReserved);
 560
 561     switch (fdwReason)
 562     {
 563         case DLL_PROCESS_ATTACH:
 564             GPHOTO2_instance = hinstDLL;
 565             DisableThreadLibraryCalls(hinstDLL);
 566 #ifdef HAVE_GPHOTO2
 567             activeDS.context = gp_context_new ();
 568 #endif
 569             break;
 570
 571         case DLL_PROCESS_DETACH:
 572             GPHOTO2_instance = NULL;
 573             break;
 574     }
 575
 576     return TRUE;
 577 }
 578
 579 #ifdef HAVE_GPHOTO2
 580 static TW_UINT16 GPHOTO2_GetIdentity( pTW_IDENTITY, pTW_IDENTITY);
 581 static TW_UINT16 GPHOTO2_OpenDS( pTW_IDENTITY, pTW_IDENTITY);
 582 #endif
 583
 584 static TW_UINT16 GPHOTO2_SourceControlHandler (
 585    pTW_IDENTITY pOrigin,
 586    TW_UINT16    DAT,
 587    TW_UINT16    MSG,
 588    TW_MEMREF    pData)
 589 {
 590     TW_UINT16 twRC = TWRC_SUCCESS;
 591
 592     switch (DAT)
 593     {
 594         case DAT_IDENTITY:
 595             switch (MSG)
 596             {
 597                 case MSG_CLOSEDS:
 598 #ifdef HAVE_GPHOTO2
 599                      if (activeDS.camera) {
 600                         gp_camera_free (activeDS.camera);
 601                         activeDS.camera = NULL;
 602                      }
 603 #endif
 604                      break;
 605                 case MSG_GET:
 606 #ifdef HAVE_GPHOTO2
 607                      twRC = GPHOTO2_GetIdentity(pOrigin,(pTW_IDENTITY)pData);
 608 #else
 609                      twRC = TWRC_FAILURE;
 610 #endif
 611                      break;
 612                 case MSG_OPENDS:
 613 #ifdef HAVE_GPHOTO2
 614                      twRC = GPHOTO2_OpenDS(pOrigin,(pTW_IDENTITY)pData);
 615 #else
 616                      twRC = TWRC_FAILURE;
 617 #endif
 618                      break;
 619             }
 620             break;
 621         case DAT_CAPABILITY:
 622             switch (MSG)
 623             {
 624                 case MSG_GET:
 625                     twRC = GPHOTO2_CapabilityGet (pOrigin, pData);
 626                     break;
 627                 case MSG_GETCURRENT:
 628                     twRC = GPHOTO2_CapabilityGetCurrent (pOrigin, pData);
 629                     break;
 630                 case MSG_GETDEFAULT:
 631                     twRC = GPHOTO2_CapabilityGetDefault (pOrigin, pData);
 632                     break;
 633                 case MSG_QUERYSUPPORT:
 634                     twRC = GPHOTO2_CapabilityQuerySupport (pOrigin, pData);
 635                     break;
 636                 case MSG_RESET:
 637                     twRC = GPHOTO2_CapabilityReset (pOrigin, pData);
 638                     break;
 639                 case MSG_SET:
 640                     twRC = GPHOTO2_CapabilitySet (pOrigin, pData);
 641                     break;
 642                 default:
 643                     twRC = TWRC_FAILURE;
 644                     FIXME("unrecognized opertion triplet\n");
 645             }
 646             break;
 647
 648         case DAT_CUSTOMDSDATA:
 649             switch (MSG)
 650             {
 651                 case MSG_GET:
 652                     twRC = GPHOTO2_CustomDSDataGet (pOrigin, pData);
 653                     break;
 654                 case MSG_SET:
 655                     twRC = GPHOTO2_CustomDSDataSet (pOrigin, pData);
 656                     break;
 657                 default:
 658                     break;
 659             }
 660             break;
 661
 662         case DAT_FILESYSTEM:
 663             switch (MSG)
 664             {
 665                 /*case MSG_AUTOMATICCAPTUREDIRECTORY:
 666                     twRC = GPHOTO2_AutomaticCaptureDirectory
 667                                (pOrigin, pData);
 668                     break;*/
 669                 case MSG_CHANGEDIRECTORY:
 670                     twRC = GPHOTO2_ChangeDirectory (pOrigin, pData);
 671                     break;
 672                 /*case MSG_COPY:
 673                     twRC = GPHOTO2_FileSystemCopy (pOrigin, pData);
 674                     break;*/
 675                 case MSG_CREATEDIRECTORY:
 676                     twRC = GPHOTO2_CreateDirectory (pOrigin, pData);
 677                     break;
 678                 case MSG_DELETE:
 679                     twRC = GPHOTO2_FileSystemDelete (pOrigin, pData);
 680                     break;
 681                 case MSG_FORMATMEDIA:
 682                     twRC = GPHOTO2_FormatMedia (pOrigin, pData);
 683                     break;
 684                 case MSG_GETCLOSE:
 685                     twRC = GPHOTO2_FileSystemGetClose (pOrigin, pData);
 686                     break;
 687                 case MSG_GETFIRSTFILE:
 688                     twRC = GPHOTO2_FileSystemGetFirstFile (pOrigin, pData);
 689                     break;
 690                 case MSG_GETINFO:
 691                     twRC = GPHOTO2_FileSystemGetInfo (pOrigin, pData);
 692                     break;
 693                 case MSG_GETNEXTFILE:
 694                     twRC = GPHOTO2_FileSystemGetNextFile (pOrigin, pData);
 695                     break;
 696                 case MSG_RENAME:
 697                     twRC = GPHOTO2_FileSystemRename (pOrigin, pData);
 698                     break;
 699                 default:
 700                     twRC = TWRC_FAILURE;
 701                     break;
 702             }
 703             break;
 704
 705         case DAT_EVENT:
 706             if (MSG == MSG_PROCESSEVENT)
 707                 twRC = GPHOTO2_ProcessEvent (pOrigin, pData);
 708             else
 709                 twRC = TWRC_FAILURE;
 710             break;
 711
 712         case DAT_PASSTHRU:
 713             if (MSG == MSG_PASSTHRU)
 714                 twRC = GPHOTO2_PassThrough (pOrigin, pData);
 715             else
 716                 twRC = TWRC_FAILURE;
 717             break;
 718
 719         case DAT_PENDINGXFERS:
 720             switch (MSG)
 721             {
 722                 case MSG_ENDXFER:
 723                     twRC = GPHOTO2_PendingXfersEndXfer (pOrigin, pData);
 724                     break;
 725                 case MSG_GET:
 726                     twRC = GPHOTO2_PendingXfersGet (pOrigin, pData);
 727                     break;
 728                 case MSG_RESET:
 729                     twRC = GPHOTO2_PendingXfersReset (pOrigin, pData);
 730                     break;
 731                 /*case MSG_STOPFEEDER:
 732                     twRC = GPHOTO2_PendingXfersStopFeeder (pOrigin, pData);
 733                     break;*/
 734                 default:
 735                     twRC = TWRC_FAILURE;
 736             }
 737             break;
 738
 739         case DAT_SETUPFILEXFER:
 740             switch (MSG)
 741             {
 742                 case MSG_GET:
 743                     twRC = GPHOTO2_SetupFileXferGet (pOrigin, pData);
 744                     break;
 745                 case MSG_GETDEFAULT:
 746                     twRC = GPHOTO2_SetupFileXferGetDefault (pOrigin, pData);
 747                     break;
 748                 case MSG_RESET:
 749                     twRC = GPHOTO2_SetupFileXferReset (pOrigin, pData);
 750                     break;
 751                 case MSG_SET:
 752                     twRC = GPHOTO2_SetupFileXferSet (pOrigin, pData);
 753                     break;
 754                 default:
 755                     twRC = TWRC_FAILURE;
 756                     break;
 757             }
 758             break;
 759
 760         /*case DAT_SETUPFILEXFER2:
 761             switch (MSG)
 762             {
 763                 case MSG_GET:
 764                     twRC = GPHOTO2_SetupFileXfer2Get (pOrigin, pData);
 765                     break;
 766                 case MSG_GETDEFAULT:
 767                     twRC = GPHOTO2_SetupFileXfer2GetDefault (pOrigin, pData);
 768                     break;
 769                 case MSG_RESET:
 770                     twRC = GPHOTO2_SetupFileXfer2Reset (pOrigin, pData);
 771                     break;
 772                 case MSG_SET:
 773                     twRC = GPHOTO2_SetupFileXfer2Set (pOrigin, pData);
 774                     break;
 775             }
 776             break;*/
 777         case DAT_SETUPMEMXFER:
 778             if (MSG == MSG_GET)
 779                 twRC = GPHOTO2_SetupMemXferGet (pOrigin, pData);
 780             else
 781                 twRC = TWRC_FAILURE;
 782             break;
 783
 784         case DAT_STATUS:
 785             if (MSG == MSG_GET)
 786                 twRC = GPHOTO2_GetDSStatus (pOrigin, pData);
 787             else
 788                 twRC = TWRC_FAILURE;
 789             break;
 790
 791         case DAT_USERINTERFACE:
 792             switch (MSG)
 793             {
 794                 case MSG_DISABLEDS:
 795                     twRC = GPHOTO2_DisableDSUserInterface (pOrigin, pData);
 796                     break;
 797                 case MSG_ENABLEDS:
 798                     twRC = GPHOTO2_EnableDSUserInterface (pOrigin, pData);
 799                     break;
 800                 case MSG_ENABLEDSUIONLY:
 801                     twRC = GPHOTO2_EnableDSUIOnly (pOrigin, pData);
 802                     break;
 803                 default:
 804                     twRC = TWRC_FAILURE;
 805                     break;
 806             }
 807             break;
 808
 809         case DAT_XFERGROUP:
 810             switch (MSG)
 811             {
 812                 case MSG_GET:
 813                     twRC = GPHOTO2_XferGroupGet (pOrigin, pData);
 814                     break;
 815                 case MSG_SET:
 816                     twRC = GPHOTO2_XferGroupSet (pOrigin, pData);
 817                     break;
 818                 default:
 819                     twRC = TWRC_FAILURE;
 820                     break;
 821             }
 822             break;
 823
 824         default:
 825             FIXME("code unknown: %d\n", DAT);
 826             twRC = TWRC_FAILURE;
 827             break;
 828     }
 829
 830     return twRC;
 831 }
 832
 833
 834 static TW_UINT16 GPHOTO2_ImageGroupHandler (
 835            pTW_IDENTITY pOrigin,
 836            TW_UINT16    DAT,
 837            TW_UINT16    MSG,
 838            TW_MEMREF    pData)
 839 {
 840     TW_UINT16 twRC = TWRC_SUCCESS;
 841
 842     switch (DAT)
 843     {
 844         case DAT_CIECOLOR:
 845             if (MSG == MSG_GET)
 846                 twRC = GPHOTO2_CIEColorGet (pOrigin, pData);
 847             else
 848                 twRC = TWRC_FAILURE;
 849             break;
 850
 851         case DAT_EXTIMAGEINFO:
 852             if (MSG == MSG_GET)
 853                 twRC = GPHOTO2_ExtImageInfoGet (pOrigin, pData);
 854             else
 855                 twRC = TWRC_FAILURE;
 856             break;
 857
 858         case DAT_GRAYRESPONSE:
 859             switch (MSG)
 860             {
 861                 case MSG_RESET:
 862                     twRC = GPHOTO2_GrayResponseReset (pOrigin, pData);
 863                     break;
 864                 case MSG_SET:
 865                     twRC = GPHOTO2_GrayResponseSet (pOrigin, pData);
 866                     break;
 867                 default:
 868                     twRC = TWRC_FAILURE;
 869                     activeDS.twCC = TWCC_BADPROTOCOL;
 870                     FIXME("unrecognized operation triplet\n");
 871                     break;
 872             }
 873             break;
 874         case DAT_IMAGEFILEXFER:
 875             if (MSG == MSG_GET)
 876                 twRC = GPHOTO2_ImageFileXferGet (pOrigin, pData);
 877             else
 878                 twRC = TWRC_FAILURE;
 879             break;
 880
 881         case DAT_IMAGEINFO:
 882             if (MSG == MSG_GET)
 883                 twRC = GPHOTO2_ImageInfoGet (pOrigin, pData);
 884             else
 885                 twRC = TWRC_FAILURE;
 886             break;
 887
 888         case DAT_IMAGELAYOUT:
 889             switch (MSG)
 890             {
 891                 case MSG_GET:
 892                     twRC = GPHOTO2_ImageLayoutGet (pOrigin, pData);
 893                     break;
 894                 case MSG_GETDEFAULT:
 895                     twRC = GPHOTO2_ImageLayoutGetDefault (pOrigin, pData);
 896                     break;
 897                 case MSG_RESET:
 898                     twRC = GPHOTO2_ImageLayoutReset (pOrigin, pData);
 899                     break;
 900                 case MSG_SET:
 901                     twRC = GPHOTO2_ImageLayoutSet (pOrigin, pData);
 902                     break;
 903                 default:
 904                     twRC = TWRC_FAILURE;
 905                     activeDS.twCC = TWCC_BADPROTOCOL;
 906                     ERR("unrecognized operation triplet\n");
 907                     break;
 908             }
 909             break;
 910
 911         case DAT_IMAGEMEMXFER:
 912             if (MSG == MSG_GET)
 913                 twRC = GPHOTO2_ImageMemXferGet (pOrigin, pData);
 914             else
 915                 twRC = TWRC_FAILURE;
 916             break;
 917
 918         case DAT_IMAGENATIVEXFER:
 919             if (MSG == MSG_GET)
 920                 twRC = GPHOTO2_ImageNativeXferGet (pOrigin, pData);
 921             else
 922                 twRC = TWRC_FAILURE;
 923             break;
 924
 925         case DAT_JPEGCOMPRESSION:
 926             switch (MSG)
 927             {
 928                 case MSG_GET:
 929                     twRC = GPHOTO2_JPEGCompressionGet (pOrigin, pData);
 930                     break;
 931                 case MSG_GETDEFAULT:
 932                     twRC = GPHOTO2_JPEGCompressionGetDefault (pOrigin, pData);
 933                     break;
 934                 case MSG_RESET:
 935                     twRC = GPHOTO2_JPEGCompressionReset (pOrigin, pData);
 936                     break;
 937                 case MSG_SET:
 938                     twRC = GPHOTO2_JPEGCompressionSet (pOrigin, pData);
 939                     break;
 940                 default:
 941                     twRC = TWRC_FAILURE;
 942                     activeDS.twCC = TWCC_BADPROTOCOL;
 943                     WARN("unrecognized operation triplet\n");
 944                     break;
 945             }
 946             break;
 947
 948         case DAT_PALETTE8:
 949             switch (MSG)
 950             {
 951                 case MSG_GET:
 952                     twRC = GPHOTO2_Palette8Get (pOrigin, pData);
 953                     break;
 954                 case MSG_GETDEFAULT:
 955                     twRC = GPHOTO2_Palette8GetDefault (pOrigin, pData);
 956                     break;
 957                 case MSG_RESET:
 958                     twRC = GPHOTO2_Palette8Reset (pOrigin, pData);
 959                     break;
 960                 case MSG_SET:
 961                     twRC = GPHOTO2_Palette8Set (pOrigin, pData);
 962                     break;
 963                 default:
 964                     twRC = TWRC_FAILURE;
 965                     activeDS.twCC = TWCC_BADPROTOCOL;
 966                     WARN("unrecognized operation triplet\n");
 967             }
 968             break;
 969
 970         case DAT_RGBRESPONSE:
 971             switch (MSG)
 972             {
 973                 case MSG_RESET:
 974                     twRC = GPHOTO2_RGBResponseReset (pOrigin, pData);
 975                     break;
 976                 case MSG_SET:
 977                     twRC = GPHOTO2_RGBResponseSet (pOrigin, pData);
 978                     break;
 979                 default:
 980                     twRC = TWRC_FAILURE;
 981                     activeDS.twCC = TWCC_BADPROTOCOL;
 982                     WARN("unrecognized operation triplet\n");
 983                     break;
 984             }
 985             break;
 986
 987         default:
 988             twRC = TWRC_FAILURE;
 989             activeDS.twCC = TWCC_BADPROTOCOL;
 990             FIXME("unrecognized DG type %d\n", DAT);
 991     }
 992     return twRC;
 993 }
 994
 995 /* Main entry point for the TWAIN library */
 996 TW_UINT16 WINAPI
 997 DS_Entry ( pTW_IDENTITY pOrigin,
 998            TW_UINT32    DG,
 999            TW_UINT16    DAT,
1000            TW_UINT16    MSG,
1001            TW_MEMREF    pData)
1002 {
1003     TW_UINT16 twRC = TWRC_SUCCESS;  /* Return Code */
1004
1005     TRACE("(DG=%d DAT=%d MSG=%d)\n", DG, DAT, MSG);
1006
1007     switch (DG)
1008     {
1009         case DG_CONTROL:
1010             twRC = GPHOTO2_SourceControlHandler (pOrigin,DAT,MSG,pData);
1011             break;
1012         case DG_IMAGE:
1013             twRC = GPHOTO2_ImageGroupHandler (pOrigin,DAT,MSG,pData);
1014             break;
1015         case DG_AUDIO:
1016             FIXME("The audio group of entry codes is not implemented.\n");
1017         default:
1018             activeDS.twCC = TWCC_BADPROTOCOL;
1019             twRC = TWRC_FAILURE;
1020     }
1021
1022     return twRC;
1023 }
1024
1025 #ifdef HAVE_GPHOTO2
1026 static GPPortInfoList *port_list;
1027 static int curcamera;
1028 static CameraList *detected_cameras;
1029 static CameraAbilitiesList *abilities_list;
1030
1031 static TW_UINT16
1032 gphoto2_auto_detect(void) {
1033     int result, count;
1034
1035     if (detected_cameras && (gp_list_count (detected_cameras) == 0)) {
1036         /* Reload if previously no cameras, we might detect new ones. */
1037         TRACE("Reloading portlist trying to detect cameras.\n");
1038         if (port_list) {
1039             gp_port_info_list_free (port_list);
1040             port_list = NULL;
1041         }
1042     }
1043     if (!port_list) {
1044         TRACE("Auto detecting gphoto cameras.\n");
1045         TRACE("Loading ports...\n");
1046         if (gp_port_info_list_new (&port_list) < GP_OK)
1047             return TWRC_FAILURE;
1048         result = gp_port_info_list_load (port_list);
1049         if (result < 0) {
1050             gp_port_info_list_free (port_list);
1051             return TWRC_FAILURE;
1052         }
1053         count = gp_port_info_list_count (port_list);
1054         if (count <= 0)
1055             return TWRC_FAILURE;
1056         if (gp_list_new (&detected_cameras) < GP_OK)
1057             return TWRC_FAILURE;
1058         if (!abilities_list) { /* Load only once per program start */
1059             gp_abilities_list_new (&abilities_list);
1060             TRACE("Loading cameras...\n");
1061             gp_abilities_list_load (abilities_list, NULL);
1062         }
1063         TRACE("Detecting cameras...\n");
1064         gp_abilities_list_detect (abilities_list, port_list, detected_cameras, NULL);
1065         curcamera = 0;
1066         TRACE("%d cameras detected\n", gp_list_count(detected_cameras));
1067     }
1068     return TWRC_SUCCESS;
1069 }
1070
1071 static TW_UINT16
1072 GPHOTO2_GetIdentity( pTW_IDENTITY pOrigin, pTW_IDENTITY self) {
1073     int count;
1074     const char *cname, *pname;
1075
1076     if (TWRC_SUCCESS != gphoto2_auto_detect())
1077         return TWRC_FAILURE;
1078
1079     count = gp_list_count (detected_cameras);
1080     if (count < GP_OK) {
1081         gp_list_free (detected_cameras);
1082         return TWRC_FAILURE;
1083     }
1084     TRACE("%d cameras detected.\n", count);
1085     self->ProtocolMajor = TWON_PROTOCOLMAJOR;
1086     self->ProtocolMinor = TWON_PROTOCOLMINOR;
1087     lstrcpynA (self->Manufacturer, "The Wine Team", sizeof(self->Manufacturer) - 1);
1088     lstrcpynA (self->ProductFamily, "GPhoto2 Camera", sizeof(self->ProductFamily) - 1);
1089
1090     if (!count) { /* No camera detected. But we need to return an IDENTITY anyway. */
1091         lstrcpynA (self->ProductName, "GPhoto2 Camera", sizeof(self->ProductName) - 1);
1092         return TWRC_SUCCESS;
1093     }
1094     gp_list_get_name  (detected_cameras, curcamera, &cname);
1095     gp_list_get_value (detected_cameras, curcamera, &pname);
1096     if (count == 1) /* Normal case, only one camera. */
1097         snprintf (self->ProductName, sizeof(self->ProductName), "%s", cname);
1098     else
1099         snprintf (self->ProductName, sizeof(self->ProductName), "%s@%s", cname, pname);
1100     curcamera = (curcamera+1) % count;
1101     return TWRC_SUCCESS;
1102 }
1103
1104 static TW_UINT16
1105 GPHOTO2_OpenDS( pTW_IDENTITY pOrigin, pTW_IDENTITY self) {
1106     int ret, m, p, count, i;
1107     CameraAbilities a;
1108     GPPortInfo info;
1109     const char  *model, *port;
1110
1111     if (TWRC_SUCCESS != gphoto2_auto_detect())
1112         return TWRC_FAILURE;
1113
1114     if (lstrcmpA(self->ProductFamily,"GPhoto2 Camera")) {
1115         FIXME("identity passed is not a gphoto camera, but %s!?!\n", self->ProductFamily);
1116         return TWRC_FAILURE;
1117     }
1118     count = gp_list_count (detected_cameras);
1119     if (!count) {
1120         ERR("No camera found by autodetection. Returning failure.\n");
1121         return TWRC_FAILURE;
1122     }
1123
1124     if (!lstrcmpA (self->ProductName, "GPhoto2 Camera")) {
1125         TRACE("Potential undetected camera. Just using the first autodetected one.\n");
1126         i = 0;
1127     } else {
1128         for (i=0;i<count;i++) {
1129             const char *cname, *pname;
1130             TW_STR32    name;
1131
1132             gp_list_get_name  (detected_cameras, i, &cname);
1133             gp_list_get_value (detected_cameras, i, &pname);
1134             if (!lstrcmpA(self->ProductName,cname))
1135                 break;
1136             snprintf(name, sizeof(name), "%s", cname);
1137             if (!lstrcmpA(self->ProductName,name))
1138                 break;
1139             snprintf(name, sizeof(name), "%s@%s", cname, pname);
1140             if (!lstrcmpA(self->ProductName,name))
1141                 break;
1142         }
1143         if (i == count) {
1144             TRACE("Camera %s not found in autodetected list. Using first entry.\n", self->ProductName);
1145             i=0;
1146         }
1147     }
1148     gp_list_get_name  (detected_cameras, i, &model);
1149     gp_list_get_value  (detected_cameras, i, &port);
1150     TRACE("model %s, port %s\n", model, port);
1151     ret = gp_camera_new (&activeDS.camera);
1152     if (ret < GP_OK) {
1153         ERR("gp_camera_new: %d\n", ret);
1154         return TWRC_FAILURE;
1155     }
1156     m = gp_abilities_list_lookup_model (abilities_list, model);
1157     if (m < GP_OK) {
1158         FIXME("Model %s not found, %d!\n", model, m);
1159         return TWRC_FAILURE;
1160     }
1161     ret = gp_abilities_list_get_abilities (abilities_list, m, &a);
1162     if (ret < GP_OK) {
1163         FIXME("gp_camera_list_get_abilities failed? %d\n", ret);
1164         return TWRC_FAILURE;
1165     }
1166     ret = gp_camera_set_abilities (activeDS.camera, a);
1167     if (ret < GP_OK) {
1168         FIXME("gp_camera_set_abilities failed? %d\n", ret);
1169         return TWRC_FAILURE;
1170     }
1171
1172     p = gp_port_info_list_lookup_path (port_list, port);
1173     if (p < GP_OK) {
1174         FIXME("port %s not in portlist?\n", port);
1175         return TWRC_FAILURE;
1176     }
1177     ret = gp_port_info_list_get_info (port_list, p, &info);
1178     if (ret < GP_OK) {
1179         FIXME("could not get portinfo for port %s?\n", port);
1180         return TWRC_FAILURE;
1181     }
1182     ret = gp_camera_set_port_info (activeDS.camera, info);
1183     if (ret < GP_OK) {
1184         FIXME("could not set portinfo for port %s to camera?\n", port);
1185         return TWRC_FAILURE;
1186     }
1187     list_init( &(activeDS.files) );
1188     activeDS.currentState = 4;
1189     activeDS.twCC               = TWRC_SUCCESS;
1190     activeDS.pixelflavor        = TWPF_CHOCOLATE;
1191     activeDS.pixeltype          = TWPT_RGB;
1192     activeDS.capXferMech        = TWSX_MEMORY;
1193     TRACE("OK!\n");
1194     return TWRC_SUCCESS;
1195 }
1196 #endif