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00001 /*
00002  * Copyright 2000 Corel Corporation
00003  *
00004  * This library is free software; you can redistribute it and/or
00005  * modify it under the terms of the GNU Lesser General Public
00006  * License as published by the Free Software Foundation; either
00007  * version 2.1 of the License, or (at your option) any later version.
00008  *
00009  * This library is distributed in the hope that it will be useful,
00010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012  * Lesser General Public License for more details.
00013  *
00014  * You should have received a copy of the GNU Lesser General Public
00015  * License along with this library; if not, write to the Free Software
00016  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
00017  */
00018 
00019 //#include "config.h"
00020 
00021 #ifdef HAVE_UNISTD_H
00022 # include <unistd.h>
00023 #endif
00024 #include <stdlib.h>
00025 #include "twain.h"
00026 #include "twain_i.h"
00027 #include "wine/debug.h"
00028 
00029 WINE_DEFAULT_DEBUG_CHANNEL(twain);
00030 
00031 /* DG_CONTROL/DAT_CAPABILITY/MSG_GET */
00032 TW_UINT16 TWAIN_CapabilityGet (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00033                                TW_MEMREF pData)
00034 {
00035     TW_UINT16 twRC = TWRC_SUCCESS, twCC = TWCC_SUCCESS;
00036     pTW_CAPABILITY pCapability = (pTW_CAPABILITY) pData;
00037     activeDS *pSource = TWAIN_LookupSource (pDest);
00038 
00039     TRACE("DG_CONTROL/DAT_CAPABILITY/MSG_GET\n");
00040 
00041     if (!pDest)
00042     {
00043         twRC = TWRC_FAILURE;
00044         DSM_twCC = TWCC_BADDEST;
00045     }
00046     else if (pSource->currentState < 4 || pSource->currentState > 7)
00047     {
00048         twRC = TWRC_FAILURE;
00049         pSource->twCC = TWCC_SEQERROR;
00050     }
00051     else
00052     {
00053         twCC = TWAIN_SaneCapability (pSource, pCapability, MSG_GET);
00054         twRC = (twCC == TWCC_SUCCESS)?TWRC_SUCCESS:TWRC_FAILURE;
00055         pSource->twCC = twCC;
00056     }
00057 
00058     return twRC;
00059 }
00060 
00061 /* DG_CONTROL/DAT_CAPABILITY/MSG_GETCURRENT */
00062 TW_UINT16 TWAIN_CapabilityGetCurrent (pTW_IDENTITY pOrigin,
00063                                       pTW_IDENTITY pDest,TW_MEMREF pData)
00064 {
00065     TW_UINT16 twRC = TWRC_SUCCESS, twCC = TWCC_SUCCESS;
00066     pTW_CAPABILITY pCapability = (pTW_CAPABILITY) pData;
00067     activeDS *pSource = TWAIN_LookupSource (pDest);
00068 
00069     TRACE("DG_CONTROL/DAT_CAPABILITY/MSG_GETCURRENT\n");
00070 
00071     if (!pSource)
00072     {
00073         twRC = TWRC_FAILURE;
00074         DSM_twCC = TWCC_BADDEST;
00075     }
00076     else if (pSource->currentState < 4 || pSource->currentState > 7)
00077     {
00078         twRC = TWRC_FAILURE;
00079         pSource->twCC = TWCC_SEQERROR;
00080     }
00081     else
00082     {
00083         twCC = TWAIN_SaneCapability (pSource, pCapability, MSG_GETCURRENT);
00084         twRC = (twCC == TWCC_SUCCESS)?TWRC_SUCCESS:TWRC_FAILURE;
00085         pSource->twCC = twCC;
00086     }
00087 
00088     return twRC;
00089 }
00090 
00091 /* DG_CONTROL/DAT_CAPABILITY/MSG_GETDEFAULT */
00092 TW_UINT16 TWAIN_CapabilityGetDefault (pTW_IDENTITY pOrigin,
00093                                       pTW_IDENTITY pDest, TW_MEMREF pData)
00094 {
00095     TW_UINT16 twRC = TWRC_SUCCESS, twCC = TWCC_SUCCESS;
00096     pTW_CAPABILITY pCapability = (pTW_CAPABILITY) pData;
00097     activeDS *pSource = TWAIN_LookupSource (pDest);
00098 
00099     TRACE("DG_CONTROL/DAT_CAPABILITY/MSG_GETDEFAULT\n");
00100 
00101     if (!pDest)
00102     {
00103         twRC = TWRC_FAILURE;
00104         DSM_twCC = TWCC_BADDEST;
00105     }
00106     else if (pSource->currentState < 4 || pSource->currentState > 7)
00107     {
00108         twRC = TWRC_FAILURE;
00109         pSource->twCC = TWCC_SEQERROR;
00110     }
00111     else
00112     {
00113         twCC = TWAIN_SaneCapability (pSource, pCapability, MSG_GETDEFAULT);
00114         twRC = (twCC == TWCC_SUCCESS)?TWRC_SUCCESS:TWRC_FAILURE;
00115         pSource->twCC = twCC;
00116     }
00117 
00118     return twRC;
00119 }
00120 
00121 /* DG_CONTROL/DAT_CAPABILITY/MSG_QUERYSUPPORT */
00122 TW_UINT16 TWAIN_CapabilityQuerySupport (pTW_IDENTITY pOrigin,
00123                                         pTW_IDENTITY pDest, TW_MEMREF pData)
00124 {
00125     FIXME ("stub!\n");
00126 
00127     return TWRC_FAILURE;
00128 }
00129 
00130 /* DG_CONTROL/DAT_CAPABILITY/MSG_RESET */
00131 TW_UINT16 TWAIN_CapabilityReset (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00132                                  TW_MEMREF pData)
00133 {
00134     TW_UINT16 twRC = TWRC_SUCCESS, twCC = TWCC_SUCCESS;
00135     pTW_CAPABILITY pCapability = (pTW_CAPABILITY) pData;
00136     activeDS *pSource = TWAIN_LookupSource (pDest);
00137 
00138     TRACE("DG_CONTROL/DAT_CAPABILITY/MSG_RESET\n");
00139 
00140     if (!pDest)
00141     {
00142         twRC = TWRC_FAILURE;
00143         DSM_twCC = TWCC_BADDEST;
00144     }
00145     else if (pSource->currentState < 4 || pSource->currentState > 7)
00146     {
00147         twRC = TWRC_FAILURE;
00148         pSource->twCC = TWCC_SEQERROR;
00149     }
00150     else
00151     {
00152         twCC = TWAIN_SaneCapability (pSource, pCapability, MSG_RESET);
00153         twRC = (twCC == TWCC_SUCCESS)?TWRC_SUCCESS:TWRC_FAILURE;
00154         pSource->twCC = twCC;
00155     }
00156 
00157     return twRC;
00158 }
00159 
00160 /* DG_CONTROL/DAT_CAPABILITY/MSG_SET */
00161 TW_UINT16 TWAIN_CapabilitySet (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00162                                TW_MEMREF pData)
00163 {
00164     TW_UINT16 twRC = TWRC_SUCCESS, twCC = TWCC_SUCCESS;
00165     pTW_CAPABILITY pCapability = (pTW_CAPABILITY) pData;
00166     activeDS *pSource = TWAIN_LookupSource (pDest);
00167 
00168     TRACE ("DG_CONTROL/DAT_CAPABILITY/MSG_SET\n");
00169 
00170     if (!pSource)
00171     {
00172         twRC = TWRC_FAILURE;
00173         DSM_twCC = TWCC_BADDEST;
00174     }
00175     else if (pSource->currentState != 4)
00176     {
00177         twRC = TWRC_FAILURE;
00178         pSource->twCC = TWCC_SEQERROR;
00179     }
00180     else
00181     {
00182         twCC = TWAIN_SaneCapability (pSource, pCapability, MSG_SET);
00183         twRC = (twCC == TWCC_SUCCESS)?TWRC_SUCCESS:TWRC_FAILURE;
00184         pSource->twCC = twCC;
00185     }
00186     return twRC;
00187 }
00188 
00189 /* DG_CONTROL/DAT_CUSTOMDSDATA/MSG_GET */
00190 TW_UINT16 TWAIN_CustomDSDataGet (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00191                                 TW_MEMREF pData)
00192 {
00193     FIXME ("stub!\n");
00194 
00195     return TWRC_FAILURE;
00196 }
00197 
00198 /* DG_CONTROL/DAT_CUSTOMDSDATA/MSG_SET */
00199 TW_UINT16 TWAIN_CustomDSDataSet (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00200                                  TW_MEMREF pData)
00201 {
00202     FIXME ("stub!\n");
00203 
00204     return TWRC_FAILURE;
00205 }
00206 
00207 /* DG_CONTROL/DAT_FILESYSTEM/MSG_AUTOMATICCAPTUREDIRECTORY */
00208 TW_UINT16 TWAIN_AutomaticCaptureDirectory (pTW_IDENTITY pOrigin,
00209                                            pTW_IDENTITY pDest,
00210                                            TW_MEMREF pData)
00211 {
00212     FIXME ("stub!\n");
00213 
00214     return TWRC_FAILURE;
00215 }
00216 
00217 /* DG_CONTROL/DAT_FILESYSTEM/MSG_CHANGEDIRECTORY */
00218 TW_UINT16 TWAIN_ChangeDirectory (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00219                                  TW_MEMREF pData)
00220 {
00221     FIXME ("stub!\n");
00222 
00223     return TWRC_FAILURE;
00224 }
00225 
00226 /* DG_CONTROL/DAT_FILESYSTEM/MSG_COPY */
00227 TW_UINT16 TWAIN_FileSystemCopy (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00228                                 TW_MEMREF pData)
00229 {
00230     FIXME ("stub!\n");
00231 
00232     return TWRC_FAILURE;
00233 }
00234 
00235 /* DG_CONTROL/DAT_FILESYSTEM/MSG_CREATEDIRECTORY */
00236 TW_UINT16 TWAIN_CreateDirectory (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00237                                  TW_MEMREF pData)
00238 {
00239     FIXME ("stub!\n");
00240 
00241     return TWRC_FAILURE;
00242 }
00243 
00244 /* DG_CONTROL/DAT_FILESYSTEM/MSG_DELETE */
00245 TW_UINT16 TWAIN_FileSystemDelete (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00246                                   TW_MEMREF pData)
00247 {
00248     FIXME ("stub!\n");
00249 
00250     return TWRC_FAILURE;
00251 }
00252 
00253 /* DG_CONTROL/DAT_FILESYSTEM/MSG_FORMATMEDIA */
00254 TW_UINT16 TWAIN_FormatMedia (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00255                              TW_MEMREF pData)
00256 {
00257     FIXME ("stub!\n");
00258 
00259     return TWRC_FAILURE;
00260 }
00261 
00262 /* DG_CONTROL/DAT_FILESYSTEM/MSG_GETCLOSE */
00263 TW_UINT16 TWAIN_FileSystemGetClose (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00264                                     TW_MEMREF pData)
00265 {
00266     FIXME ("stub!\n");
00267 
00268     return TWRC_FAILURE;
00269 }
00270 
00271 /* DG_CONTROL/DAT_FILESYSTEM/MSG_GETFIRSTFILE */
00272 TW_UINT16 TWAIN_FileSystemGetFirstFile (pTW_IDENTITY pOrigin,
00273                                         pTW_IDENTITY pDest,
00274                                         TW_MEMREF pData)
00275 {
00276     FIXME ("stub!\n");
00277 
00278     return TWRC_FAILURE;
00279 }
00280 
00281 /* DG_CONTROL/DAT_FILESYSTEM/MSG_GETINFO */
00282 TW_UINT16 TWAIN_FileSystemGetInfo (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00283                                    TW_MEMREF pData)
00284 {
00285     FIXME ("stub!\n");
00286 
00287     return TWRC_FAILURE;
00288 }
00289 
00290 /* DG_CONTROL/DAT_FILESYSTEM/MSG_GETNEXTFILE */
00291 TW_UINT16 TWAIN_FileSystemGetNextFile (pTW_IDENTITY pOrigin,
00292                                        pTW_IDENTITY pDest,
00293                                        TW_MEMREF pData)
00294 {
00295     FIXME ("stub!\n");
00296 
00297     return TWRC_FAILURE;
00298 }
00299 
00300 /* DG_CONTROL/DAT_FILESYSTEM/MSG_RENAME */
00301 TW_UINT16 TWAIN_FileSystemRename (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00302                                   TW_MEMREF pData)
00303 {
00304     FIXME ("stub!\n");
00305 
00306     return TWRC_FAILURE;
00307 }
00308 
00309 /* DG_CONTROL/DAT_EVENT/MSG_PROCESSEVENT */
00310 TW_UINT16 TWAIN_ProcessEvent (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00311                               TW_MEMREF pData)
00312 {
00313     TW_UINT16 twRC = TWRC_SUCCESS;
00314     pTW_EVENT pEvent = (pTW_EVENT) pData;
00315     activeDS *pSource = TWAIN_LookupSource (pDest);
00316 
00317     TRACE("DG_CONTROL/DAT_EVENT/MSG_PROCESSEVENT\n");
00318 
00319     if (!pSource)
00320     {
00321          twRC = TWRC_FAILURE;
00322          DSM_twCC = TWCC_BADDEST;
00323     }
00324     else if (pSource->currentState < 5 || pSource->currentState > 7)
00325     {
00326         twRC = TWRC_FAILURE;
00327         pSource->twCC = TWCC_SEQERROR;
00328     }
00329     else
00330     {
00331         if (pSource->pendingEvent.TWMessage != MSG_NULL)
00332         {
00333             pEvent->TWMessage = pSource->pendingEvent.TWMessage;
00334             pSource->pendingEvent.TWMessage = MSG_NULL;
00335             twRC = TWRC_DSEVENT;
00336         }
00337         else
00338         {
00339             pEvent->TWMessage = MSG_NULL;  /* no message to the application */
00340             twRC = TWRC_NOTDSEVENT;
00341         }
00342         pSource->twCC = TWCC_SUCCESS;
00343     }
00344 
00345     return twRC;
00346 }
00347 
00348 /* DG_CONTROL/DAT_PASSTHRU/MSG_PASSTHRU */
00349 TW_UINT16 TWAIN_PassThrough (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00350                              TW_MEMREF pData)
00351 {
00352     FIXME ("stub!\n");
00353 
00354     return TWRC_FAILURE;
00355 }
00356 
00357 /* DG_CONTROL/DAT_PENDINGXFERS/MSG_ENDXFER */
00358 TW_UINT16 TWAIN_PendingXfersEndXfer (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00359                                      TW_MEMREF pData)
00360 {
00361     TW_UINT16 twRC = TWRC_SUCCESS;
00362     pTW_PENDINGXFERS pPendingXfers = (pTW_PENDINGXFERS) pData;
00363     activeDS *pSource = TWAIN_LookupSource (pData);
00364 
00365     TRACE("DG_CONTROL/DAT_PENDINGXFERS/MSG_ENDXFER\n");
00366 
00367     if (!pSource)
00368     {
00369         twRC = TWRC_FAILURE;
00370         DSM_twCC = TWCC_BADDEST;
00371     }
00372     else if (pSource->currentState != 6 && pSource->currentState != 7)
00373     {
00374         twRC = TWRC_FAILURE;
00375         pSource->twCC = TWCC_SEQERROR;
00376     }
00377     else
00378     {
00379         if (pPendingXfers->Count != 0)
00380         {
00381             pPendingXfers->Count --;
00382             pSource->currentState = 6;
00383         }
00384         else
00385         {
00386             pSource->currentState = 5;
00387             /* Notify the application that it can close the data source */
00388             pSource->pendingEvent.TWMessage = MSG_CLOSEDSREQ;
00389         }
00390         twRC = TWRC_SUCCESS;
00391         pSource->twCC = TWCC_SUCCESS;
00392     }
00393 
00394     return twRC;
00395 }
00396 
00397 /* DG_CONTROL/DAT_PENDINGXFERS/MSG_GET */
00398 TW_UINT16 TWAIN_PendingXfersGet (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00399                                  TW_MEMREF pData)
00400 {
00401     TW_UINT16 twRC = TWRC_SUCCESS;
00402     pTW_PENDINGXFERS pPendingXfers = (pTW_PENDINGXFERS) pData;
00403     activeDS *pSource = TWAIN_LookupSource (pDest);
00404 
00405     TRACE("DG_CONTROL/DAT_PENDINGXFERS/MSG_GET\n");
00406 
00407     if (!pSource)
00408     {
00409         twRC = TWRC_FAILURE;
00410         DSM_twCC = TWCC_BADDEST;
00411     }
00412     else if (pSource->currentState < 4 || pSource->currentState > 7)
00413     {
00414         twRC = TWRC_FAILURE;
00415         DSM_twCC = TWCC_SEQERROR;
00416     }
00417     else
00418     {
00419         /* FIXME: we shouldn't return 1 here */
00420         pPendingXfers->Count = 1;
00421         twRC = TWRC_SUCCESS;
00422         pSource->twCC = TWCC_SUCCESS;
00423     }
00424 
00425     return twRC;
00426 }
00427 
00428 /* DG_CONTROL/DAT_PENDINGXFERS/MSG_RESET */
00429 TW_UINT16 TWAIN_PendingXfersReset (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00430                                    TW_MEMREF pData)
00431 {
00432     TW_UINT16 twRC = TWRC_SUCCESS;
00433     pTW_PENDINGXFERS pPendingXfers = (pTW_PENDINGXFERS) pData;
00434     activeDS *pSource = TWAIN_LookupSource (pDest);
00435 
00436     TRACE("DG_CONTROL/DAT_PENDINGXFERS/MSG_RESET\n");
00437 
00438     if (!pSource)
00439     {
00440         twRC = TWRC_FAILURE;
00441         DSM_twCC = TWCC_BADDEST;
00442     }
00443     else if (pSource->currentState != 6)
00444     {
00445         twRC = TWRC_FAILURE;
00446         DSM_twCC = TWCC_SEQERROR;
00447     }
00448     else
00449     {
00450         pPendingXfers->Count = 0;
00451         pSource->currentState = 5;
00452         twRC = TWRC_SUCCESS;
00453         pSource->twCC = TWCC_SUCCESS;
00454     }
00455 
00456     return twRC;
00457 }
00458 
00459 /* DG_CONTROL/DAT_PENDINGXFERS/MSG_STOPFEEDER */
00460 TW_UINT16 TWAIN_PendingXfersStopFeeder (pTW_IDENTITY pOrigin,
00461                                         pTW_IDENTITY pDest, TW_MEMREF pData)
00462 {
00463     FIXME ("stub!\n");
00464 
00465     return TWRC_FAILURE;
00466 }
00467 
00468 /* DG_CONTROL/DAT_SETUPFILEXFER/MSG_GET */
00469 TW_UINT16 TWAIN_SetupFileXferGet (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00470                                   TW_MEMREF pData)
00471 {
00472     FIXME ("stub!\n");
00473 
00474     return TWRC_FAILURE;
00475 }
00476 
00477 /* DG_CONTROL/DAT_SETUPXFER/MSG_GETDEFAULT */
00478 TW_UINT16 TWAIN_SetupFileXferGetDefault (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00479                                          TW_MEMREF pData)
00480 {
00481     FIXME ("stub!\n");
00482 
00483     return TWRC_FAILURE;
00484 }
00485 
00486 
00487 /* DG_CONTROL/DAT_SETUPFILEXFER/MSG_RESET */
00488 TW_UINT16 TWAIN_SetupFileXferReset (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00489                                     TW_MEMREF pData)
00490 {
00491     FIXME ("stub!\n");
00492 
00493     return TWRC_FAILURE;
00494 }
00495 
00496 /* DG_CONTROL/DAT_SETUPFILEXFER/MSG_SET */
00497 TW_UINT16 TWAIN_SetupFileXferSet (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00498                                   TW_MEMREF pData)
00499 {
00500     FIXME ("stub!\n");
00501 
00502     return TWRC_FAILURE;
00503 }
00504 
00505 /* DG_CONTROL/DAT_SETUPFILEXFER2/MSG_GET */
00506 TW_UINT16 TWAIN_SetupFileXfer2Get (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00507                                    TW_MEMREF pData)
00508 {
00509     FIXME ("stub!\n");
00510 
00511     return TWRC_FAILURE;
00512 }
00513 
00514 /* DG_CONTROL/DAT_SETUPFILEXFER2/MSG_GETDEFAULT */
00515 TW_UINT16 TWAIN_SetupFileXfer2GetDefault (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00516                                          TW_MEMREF pData)
00517 {
00518     FIXME ("stub!\n");
00519 
00520     return TWRC_FAILURE;
00521 }
00522 
00523 /* DG_CONTROL/DAT_SETUPFILEXFER2/MSG_RESET */
00524 TW_UINT16 TWAIN_SetupFileXfer2Reset (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00525                                   TW_MEMREF pData)
00526 {
00527     FIXME ("stub!\n");
00528 
00529     return TWRC_FAILURE;
00530 }
00531 
00532 /* DG_CONTROL/DAT_SETUPFILEXFER2/MSG_SET */
00533 TW_UINT16 TWAIN_SetupFileXfer2Set (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00534                                   TW_MEMREF pData)
00535 {
00536     FIXME ("stub!\n");
00537 
00538     return TWRC_FAILURE;
00539 }
00540 
00541 /* DG_CONTROL/DAT_SETUPMEMXFER/MSG_GET */
00542 TW_UINT16 TWAIN_SetupMemXferGet (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00543                                   TW_MEMREF pData)
00544 {
00545     FIXME ("stub!\n");
00546 
00547     return TWRC_FAILURE;
00548 }
00549 
00550 /* DG_CONTROL/DAT_STATUS/MSG_GET */
00551 TW_UINT16 TWAIN_GetDSStatus (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00552                              TW_MEMREF pData)
00553 {
00554     TW_UINT16 twRC = TWRC_FAILURE;
00555     pTW_STATUS pSourceStatus = (pTW_STATUS) pData;
00556     activeDS *pSource = TWAIN_LookupSource (pDest);
00557 
00558     TRACE ("DG_CONTROL/DAT_STATUS/MSG_GET\n");
00559 
00560     if (!pSource)
00561     {
00562         twRC = TWRC_FAILURE;
00563         DSM_twCC = TWCC_BADDEST;
00564         pSourceStatus->ConditionCode = TWCC_BADDEST;
00565     }
00566     else
00567     {
00568         twRC = TWRC_SUCCESS;
00569         pSourceStatus->ConditionCode = pSource->twCC;
00570         /* Reset the condition code */
00571         pSource->twCC = TWCC_SUCCESS;
00572     }
00573 
00574     return twRC;
00575 }
00576 
00577 /* DG_CONTROL/DAT_USERINTERFACE/MSG_DISABLEDS */
00578 TW_UINT16 TWAIN_DisableDSUserInterface (pTW_IDENTITY pOrigin,
00579                                         pTW_IDENTITY pDest, TW_MEMREF pData)
00580 {
00581     TW_UINT16 twRC = TWRC_SUCCESS;
00582     activeDS *pSource = TWAIN_LookupSource (pDest);
00583 
00584     TRACE ("DG_CONTROL/DAT_USERINTERFACE/MSG_DISABLEDS\n");
00585 
00586     if (!pSource)
00587     {
00588         twRC = TWRC_FAILURE;
00589         DSM_twCC = TWCC_BADDEST;
00590     }
00591     else if (pSource->currentState != 5)
00592     {
00593         twRC = TWRC_FAILURE;
00594         pSource->twCC = TWCC_SEQERROR;
00595     }
00596     else
00597     {
00598         pSource->currentState = 4;
00599         twRC = TWRC_SUCCESS;
00600         pSource->twCC = TWCC_SUCCESS;
00601     }
00602 
00603     return twRC;
00604 }
00605 
00606 /* DG_CONTROL/DAT_USERINTERFACE/MSG_ENABLEDS */
00607 TW_UINT16 TWAIN_EnableDSUserInterface (pTW_IDENTITY pOrigin,
00608                                        pTW_IDENTITY pDest, TW_MEMREF pData)
00609 {
00610     TW_UINT16 twRC = TWRC_SUCCESS;
00611     pTW_USERINTERFACE pUserInterface = (pTW_USERINTERFACE) pData;
00612     activeDS *pSource = TWAIN_LookupSource (pDest);
00613 
00614     TRACE ("DG_CONTROL/DAT_USERINTERFACE/MSG_ENABLEDS\n");
00615 
00616     if (!pSource)
00617     {
00618         twRC = TWRC_FAILURE;
00619         DSM_twCC = TWCC_BADDEST;
00620     }
00621     else if (pSource->currentState != 4)
00622     {
00623         twRC = TWRC_FAILURE;
00624         pSource->twCC = TWCC_SEQERROR;
00625     }
00626     else
00627     {
00628         if (pUserInterface->ShowUI)
00629         {
00630             pSource->currentState = 5; /* Transitions to state 5 */
00631             /* FIXME: we should replace xscanimage with our own device UI */
00632             system ("xscanimage");
00633             pSource->currentState = 6;
00634             pSource->pendingEvent.TWMessage = MSG_XFERREADY;
00635         }
00636         else
00637         {
00638             /* no UI will be displayed, so source is ready to transfer data */
00639             pSource->pendingEvent.TWMessage = MSG_XFERREADY;
00640             pSource->currentState = 6; /* Transitions to state 6 directly */
00641         }
00642 
00643         pSource->hwndOwner = pUserInterface->hParent;
00644         twRC = TWRC_SUCCESS;
00645         pSource->twCC = TWCC_SUCCESS;
00646     }
00647 
00648     return twRC;
00649 }
00650 
00651 /* DG_CONTROL/DAT_USERINTERFACE/MSG_ENABLEDSUIONLY */
00652 TW_UINT16 TWAIN_EnableDSUIOnly (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00653                                 TW_MEMREF pData)
00654 {
00655     TW_UINT16 twRC = TWRC_SUCCESS;
00656     activeDS *pSource = TWAIN_LookupSource (pDest);
00657 
00658     TRACE("DG_CONTROL/DAT_USERINTERFACE/MSG_ENABLEDSUIONLY\n");
00659 
00660     if (!pSource)
00661     {
00662         twRC = TWRC_FAILURE;
00663         DSM_twCC = TWCC_BADDEST;
00664     }
00665     else if (pSource->currentState != 4)
00666     {
00667         twRC = TWRC_FAILURE;
00668         pSource->twCC = TWCC_SEQERROR;
00669     }
00670     else
00671     {
00672         /* FIXME: we should replace xscanimage with our own UI */
00673         system ("xscanimage");
00674         pSource->currentState = 5;
00675         twRC = TWRC_SUCCESS;
00676         pSource->twCC = TWCC_SUCCESS;
00677     }
00678 
00679     return twRC;
00680 }
00681 
00682 /* DG_CONTROL/DAT_XFERGROUP/MSG_GET */
00683 TW_UINT16 TWAIN_XferGroupGet (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00684                               TW_MEMREF pData)
00685 {
00686     FIXME ("stub!\n");
00687 
00688     return TWRC_FAILURE;
00689 }
00690 
00691 /* DG_CONTROL/DAT_XFERGROUP/MSG_SET */
00692 TW_UINT16 TWAIN_XferGroupSet (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
00693                                   TW_MEMREF pData)
00694 {
00695     FIXME ("stub!\n");
00696 
00697     return TWRC_FAILURE;
00698 }
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