Started TWAIN implementation.

configure.ac

@@ -360,6 +360,30 @@ AC_CHECK_LIB(cups,cupsGetPPD,
 )
 AC_SUBST(CUPSLIBS)
 
+dnl **** Check for SANE ****
+AC_CHECK_PROG(sane_devel,sane-config,sane-config,no)
+if test "$sane_devel" = "no"
+then
+    SANELIBS=""
+    SANEINCL=""
+else
+    SANELIBS="`$sane_devel --libs`"
+    SANEINCL="`$sane_devel --cflags`"
+    ac_save_CPPFLAGS="$CPPFLAGS"
+    ac_save_LIBS="$LIBS"
+    CPPFLAGS="$CPPFLAGS $SANEINCL"
+    LIBS="$LIBS $SANELIBS"
+    AC_CHECK_HEADER(sane/sane.h,[
+	    AC_CHECK_LIB(sane,sane_open,[AC_DEFINE(HAVE_SANE, 1, [Define if we have SANE development environment])],
+	    SANELIBS=""
+	    ])
+    )
+    LIBS="$ac_save_LIBS"
+    CPPFLAGS="$ac_save_CPPFLAGS"
+fi
+AC_SUBST(SANELIBS)
+AC_SUBST(SANEINCL)
+
 dnl **** Check for FreeType 2 ****
 AC_CHECK_LIB(freetype,FT_Init_FreeType,ft_lib=yes,ft_lib=no,$X_LIBS)
 if test "$ft_lib" = "no"
@@ -1330,6 +1354,7 @@ dlls/shlwapi/Makefile
 dlls/sti/Makefile
 dlls/tapi32/Makefile
 dlls/ttydrv/Makefile
+dlls/twain/Makefile
 dlls/url/Makefile
 dlls/urlmon/Makefile
 dlls/user/Makefile

dlls/Makefile.in

@@ -69,6 +69,7 @@ SUBDIRS = \
 	sti \
 	tapi32 \
 	ttydrv \
+	twain \
 	url \
 	urlmon \
 	user \
@@ -195,6 +196,7 @@ all: \
 	tapi32.dll$(DLLEXT) \
 	toolhelp.dll$(DLLEXT) \
 	ttydrv.dll$(DLLEXT) \
+	twain_32.dll$(DLLEXT) \
 	typelib.dll$(DLLEXT) \
 	url.dll$(DLLEXT) \
 	urlmon.dll$(DLLEXT) \
@@ -426,6 +428,9 @@ tapi32.dll$(DLLEXT): tapi32/tapi32.dll$(DLLEXT)
 ttydrv.dll$(DLLEXT): ttydrv/ttydrv.dll$(DLLEXT)
 	$(RM) $@ && $(LN_S) ttydrv/ttydrv.dll$(DLLEXT) $@
 
+twain_32.dll$(DLLEXT): twain/twain_32.dll$(DLLEXT)
+	$(RM) $@ && $(LN_S) twain/twain_32.dll$(DLLEXT) $@
+
 url.dll$(DLLEXT): url/url.dll$(DLLEXT)
 	$(RM) $@ && $(LN_S) url/url.dll$(DLLEXT) $@
 
@@ -690,6 +695,10 @@ ttydrv/ttydrv.dll$(DLLEXT): dummy user32.dll$(DLLEXT) gdi32.dll$(DLLEXT) \
   libkernel32.dll.$(LIBEXT) libntdll.dll.$(LIBEXT)
 	@cd ttydrv && $(MAKE) ttydrv.dll$(DLLEXT)
 
+twain/twain_32.dll$(DLLEXT): dummy user32.dll$(DLLEXT) gdi32.dll$(DLLEXT) \
+  kernel32.dll$(DLLEXT) ntdll.dll$(DLLEXT)
+	@cd twain && $(MAKE) twain_32.dll$(DLLEXT)
+
 url/url.dll$(DLLEXT): dummy ntdll.dll$(DLLEXT)
 	@cd url && $(MAKE) url.dll$(DLLEXT)
 

dlls/twain/.cvsignore

+Makefile
+twain_32.spec.c

dlls/twain/Makefile.in

+TOPSRCDIR = @top_srcdir@
+TOPOBJDIR = ../..
+SRCDIR    = @srcdir@
+VPATH     = @srcdir@
+MODULE    = twain_32.dll
+EXTRALIBS = @SANELIBS@
+EXTRAINCL = @SANEINCL@
+
+LDDLLFLAGS = @LDDLLFLAGS@
+SYMBOLFILE = $(MODULE).tmp.o
+
+C_SRCS = \
+	capability.c \
+	ds_audio.c \
+	ds_ctrl.c \
+	ds_image.c \
+	dsm_ctrl.c \
+	twain32_main.c
+
+@MAKE_DLL_RULES@
+
+### Dependencies:

dlls/twain/README

+----- Old Corel README, probably outdated ----------------------------------
+1. INTRODUCTION
+
+This library (twain32.dll) is an implementation of TWAIN API for providing image acquisition devices (scanner or digital camera) support.  It uses SANE drivers as the backend and translates TWAIN API calls into SANE API calls.  Unlike the twain32 library on Windows platform, it combines the Data Source Manager and Data Sources into a single library.  Thus it is our responsiblity to provide a graphical user interface and capability negotiation, which usually are performed by data sources.
+
+
+2. WHAT'S IMPLEMENTED
+
+- Functions that dispatch operations specified by the operation triplets to the coresponding function.
+
+- All the operation triplets related to the Data Source Manager are implemented.  Appplication is able to enumerate data sources and open them.
+
+- The operation triplets that deal with the UI (such as DG_CONTROL/DAT_USERINTERFACE/MSG_ENABLEDS, MSG_DISABLEDS and MSG_ENABLEDSUIONLY) are partially implemented although it does not really do much.
+
+- The operation triplets that deal with native image transfering (DG_IMAGE/DAT_IMAGENATIVEXFER/MSG_GET) are also partially implemented.  Still need to figure out how to convert the image data obtained from sane to the Windows DIB format.
+
+-  Only the CAP_ICAPXFERMECH capability is implemented.
+
+
+3. TO-DO
+
+- Image native transfer is not working correctly right now.  It crashed the application due to the invalid DIB created.  We need to fix this.
+
+- Implement other image transfer mode such as file transfer and memory transfer.
+
+- Support all required TWAIN capabilities that have not been implemented currently.  There are a fixed number of capabilities specified by the TWAIN Specification.  However, device capabilities are dynamic in SANE and there isn't a standard about the capability names.  It would be difficult to negotiate capabilities in TWAIN given that we don't know what capabilities a SANE driver would provide.  One possible solution to use a device configuration file to describe the mapping between capabilities supported by a SANE driver and those specified by TWAIN.   
+- Build a dynamic user interface that reflects the capabilities of different scanner devices.  According to the TWAIN specification, each TWAIN driver need to provide its own user interface.  However the SANE drivers do not have graphical frontends.  Building a frontend for each SANE driver is a huge task.  It is possible to have a dynamic frontend similar to xscanimage or xsane that works for all the devices.  This is possibly the most difficult part. 
+
+- check into legal issues regarding:
+  - TWAIN header file
+  - linking to SANE (maybe should dynamically link at run time?)
+
+- add autoconf rules for enabling based on whether sane is installed
+
+4. FILE LISTING
+
+twain32_main.c          Functions to regconize operation tripets and dispatch
+                        the requests to the corresponding functions.
+dsm_ctrl.c		Implementation of DG_CONTROL group operation triplets
+                        destinated for source manager.
+ds_ctrl.c               Implementation of DG_CONTROL group operation triplets
+                        destinated for data source.
+ds_image.c              Implementation of DG_IMAGE group operation triplets
+                        destinated for data source.
+ds_audio.c              Implementation of DG_AUDIO group operation triplets
+                        destinated for data source
+capability.c            Functions for negotiating capabilities
+twain.h			The original TWAIN header file
+twain_i.h		Header file for the internal twain functions	
+
+
+--
+Shi Quan He
+shiquan@cyberdude.com

dlls/twain/TWAIN

+Requirements to be a TWAIN-Compliant Source
+Requirements
+TWAIN-compliant Sources must support the following:
+Operations
+----------
+DG_CONTROL / DAT_CAPABILITY / MSG_GET
+DG_CONTROL / DAT_CAPABILITY / MSG_GETCURRENT
+DG_CONTROL / DAT_CAPABILITY / MSG_GETDEFAULT
+DG_CONTROL / DAT_CAPABILITY / MSG_RESET
+DG_CONTROL / DAT_CAPABILITY / MSG_SET
+DG_CONTROL / DAT_EVENT / MSG_PROCESSEVENT
+DG_CONTROL / DAT_IDENTITY / MSG_GET
+DG_CONTROL / DAT_IDENTITY / MSG_OPENDS
+DG_CONTROL / DAT_IDENTITY / MSG_CLOSEDS
+DG_CONTROL / DAT_PENDINGXFERS / MSG_ENDXFER
+DG_CONTROL / DAT_PENDINGXFERS / MSG_GET
+DG_CONTROL / DAT_PENDINGXFERS / MSG_RESET
+DG_CONTROL / DAT_SETUPMEMXFER / MSG_GET
+DG_CONTROL / DAT_STATUS / MSG_GET
+DG_CONTROL / DAT_USERINTERFACE / MSG_DISABLEDS
+DG_CONTROL / DAT_USERINTERFACE / MSG_ENABLEDS
+DG_CONTROL / DAT_XFERGROUP / MSG_GET
+DG_IMAGE / DAT_IMAGEINFO / MSG_GET
+DG_IMAGE / DAT_IMAGELAYOUT / MSG_GET
+DG_IMAGE / DAT_IMAGELAYOUT / MSG_GETDEFAULT
+DG_IMAGE / DAT_IMAGELAYOUT / MSG_RESET
+DG_IMAGE / DAT_IMAGELAYOUT / MSG_SET
+DG_IMAGE / DAT_IMAGEMEMXFER / MSG_GET
+DG_IMAGE / DAT_IMAGENATIVEXFER / MSG_GET
+
+Capabilities
+------------
+Every Source must support all five DG_CONTROL / DAT_CAPABILITY operations on:
+CAP_XFERCOUNT
+Every Source must support DG_CONTROL / DAT_CAPABILITY MSG_GET on:
+CAP_SUPPORTEDCAPS
+CAP_UICONTROLLABLE
+Sources that supply image information must support DG_CONTROL / DAT_CAPABILITY /
+MSG_GET, MSG_GETCURRENT, MSG_GETDEFAULT on:
+ICAP_COMPRESSION
+ICAP_PLANARCHUNKY
+ICAP_PHYSICALHEIGHT
+ICAP_PHYSICALWIDTH
+ICAP_PIXELFLAVOR
+Sources that supply image information must support DG_CONTROL / DAT_CAPABILITY /
+MSG_GET, MSG_GETCURRENT, MSG_GETDEFAULT, MSG_RESET and MSG_SET on:
+ICAP_BITDEPTH
+ICAP_BITORDER
+ICAP_PIXELTYPE
+ICAP_UNITS
+ICAP_XFERMECH
+ICAP_XRESOLUTION
+ICAP_YRESOLUTION
+All Sources must implement the advertised features supported by their devices. They must
+make these features available to applications via the TWAIN protocol. For example, a Source
+thats connected to a device that has an ADF must support DG_CONTROL /
+DAT_CAPABILITY / MSG_GET, MSG_GETCURRENT, MSG_GETDEFAULT on:
+CAP_FEEDERENABLED
+CAP_FEEDERLOADED
+and DG_CONTROL / DAT_CAPABILITY / MSG_GET, MSG_GETCURRENT,
+MSG_GETDEFAULT, MSG_RESET and MSG_SET on:
+CAP_AUTOFEED
+If the ADF also supports ejecting and rewinding of pages then the Source should also support
+DG_CONTROL / DAT_CAPABILITY / MSG_GET, MSG_GETCURRENT,
+MSG_GETDEFAULT, MSG_RESET and MSG_SET on:
+CAP_CLEARPAGE
+CAP_REWINDPAGE
+
+
+*******************************************************************************
+
+From Application to Source Manager (Control Information)
+
+Data Group		Data Argument Type	Message
+DG_CONTROL		DAT_IDENTITY 		MSG_CLOSEDS
+						MSG_GETDEFAULT
+						MSG_GETFIRST
+						MSG_GETNEXT
+						MSG_OPENDS
+						MSG_USERSELECT
+DG_CONTROL		DAT_PARENT		MSG_CLOSEDSM
+						MSG_OPENDSM
+DG_CONTROL		DAT_STATUS		MSG_GET
+
+From Application to Source (Control Information)
+Data Group		Data Argument Type 	Message
+DG_CONTROL		DAT_CAPABILITY		MSG_GET
+						MSG_GETCURRENT
+						MSG_GETDEFAULT
+						MSG_QUERYSUPPORT
+						MSG_RESET
+						MSG_SET
+DG_CONTROL		DAT_CUSTOMDSDATA	MSG_GET
+						MSG_SET
+DG_CONTROL		DAT_FILESYSTEM		MSG_AUTOMATICCAPTURE
+						DIRECTORY
+						MSG_CHANGEDIRECTORY
+						MSG_COPY
+						MSG_CREATEDIRECTORY
+						MSG_DELETE
+						MSG_FORMATMEDIA
+						MSG_GETCLOSE
+						MSG_GETFIRSTFILE
+						MSG_GETINFO
+						MSG_GETNEXTFILE
+						MSG_RENAME
+DG_CONTROL		DAT_EVENT		MSG_PROCESSEVENT
+DG_CONTROL		DAT_PASSTHRU		MSG_PASSTHRU
+DG_CONTROL		DAT_PENDINGXFERS	MSG_ENDXFER
+						MSG_GET
+						MSG_RESET
+						MSG_STOPFEEDER
+DG_CONTROL		DAT_SETUPFILEXFER	MSG_GET
+						MSG_GETDEFAULT
+						MSG_RESET
+						MSG_SET
+DG_CONTROL		DAT_SETUPFILEXFER2	MSG_GET
+						MSG_GETDEFAULT
+						MSG_RESET
+						MSG_SET
+DG_CONTROL		DAT_SETUPMEMXFER	MSG_GET
+DG_CONTROL		DAT_STATUS		MSG_GET
+DG_CONTROL		DAT_USERINTERFACE	MSG_DISABLEDS
+						MSG_ENABLEDS
+						MSG_ENABLEDSUIONLY
+DG_CONTROL		DAT_XFERGROUP		MSG_GET
+						MSG_SET
+
+From Application to Source (Image Information)
+Data Group		Data Argument Type	Message
+DG_IMAGE		DAT_CIECOLOR		MSG_GET
+DG_IMAGE		DAT_EXTIMAGEINFO	MSG_GET
+DG_IMAGE		DAT_GRAYRESPONSE	MSG_RESET
+						MSG_SET
+DG_IMAGE		DAT_IMAGEFILEXFER	MSG_GET
+DG_IMAGE		DAT_IMAGEINFO		MSG_GET
+DG_IMAGE		DAT_IMAGELAYOUT		MSG_GET
+						MSG_GETDEFAULT
+						MSG_RESET
+						MSG_SET
+DG_IMAGE		DAT_IMAGEMEMXFER	MSG_GET
+DG_IMAGE		DAT_IMAGENATIVEXFER	MSG_GET
+DG_IMAGE		DAT_JPEGCOMPRESSION	MSG_GET
+						MSG_GETDEFAULT
+						MSG_RESET
+						MSG_SET
+DG_IMAGE		DAT_PALETTE8		MSG_GET
+						MSG_GETDEFAULT
+						MSG_RESET
+						MSG_SET
+DG_IMAGE		DAT_RGBRESPONSE		MSG_RESET
+						MSG_SET
+
+From Application to Source (Audio Information)
+Data Group		Data Argument Type	Message
+DG_AUDIO		DAT_AUDIOFILEXFER	MSG_GET
+DG_AUDIO		DAT_AUDIOINFO		MSG_GET
+DG_AUDIO		DAT_AUDIONATIVEXFER	MSG_GET
+
+From Source Manager to Source (Control Information)
+Data Group		Data Argument Type	Message
+DG_CONTROL		DAT_IDENTITY		MSG_CLOSEDS
+						MSG_GET
+						MSG_OPENDS
+
+From Source to Application (Control Information via the Source Manager)
+(Used by Windows Sources only)
+Data Group		Data Argument Type	Message
+DG_CONTROL		DAT_NULL		MSG_CLOSEDSOK
+						MSG_CLOSEDSREQ
+						MSG_DEVICEEVENT
+						MSG_XFERREADY

dlls/twain/capability.c

+/*
+ * Copyright 2000 Corel Corporation
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "winbase.h"
+#include "twain.h"
+#include "twain_i.h"
+#include "wine/debug.h"
+
+WINE_DEFAULT_DEBUG_CHANNEL(twain);
+
+TW_UINT16 TWAIN_SaneCapability (activeDS *pSource, pTW_CAPABILITY pCapability,
+                                TW_UINT16 action)
+{
+    TW_UINT16 twCC = TWCC_SUCCESS;
+
+    TRACE("capability=%d action=%d\n", pCapability->Cap, action);
+
+    switch (pCapability->Cap)
+    {
+        case CAP_DEVICEEVENT:
+        case CAP_ALARMS:
+        case CAP_ALARMVOLUME:
+        case ACAP_AUDIOFILEFORMAT:
+        case ACAP_XFERMECH:
+        case ICAP_AUTOMATICBORDERDETECTION:
+        case ICAP_AUTOMATICDESKEW:
+        case ICAP_AUTODISCARDBLANKPAGES:
+        case ICAP_AUTOMATICROTATE:
+        case ICAP_FLIPROTATION:
+        case CAP_AUTOMATICCAPTURE:
+        case CAP_TIMEBEFOREFIRSTCAPTURE:
+        case CAP_TIMEBETWEENCAPTURES:
+        case CAP_AUTOSCAN:
+        case CAP_CLEARBUFFERS:
+        case CAP_MAXBATCHBUFFERS:
+        case ICAP_BARCODEDETECTIONENABLED:
+        case ICAP_SUPPORTEDBARCODETYPES:
+        case ICAP_BARCODEMAXSEARCHPRIORITIES:
+        case ICAP_BARCODESEARCHPRIORITIES:
+        case ICAP_BARCODESEARCHMODE:
+        case ICAP_BARCODEMAXRETRIES:
+        case ICAP_BARCODETIMEOUT:
+        case CAP_EXTENDEDCAPS:
+        case CAP_SUPPORTEDCAPS:
+        case ICAP_FILTER:
+        case ICAP_GAMMA:
+        case ICAP_PLANARCHUNKY:
+        case ICAP_BITORDERCODES:
+        case ICAP_CCITTKFACTOR:
+        case ICAP_COMPRESSION:
+        case ICAP_JPEGPIXELTYPE:
+        /*case ICAP_JPEGQUALITY:*/
+        case ICAP_PIXELFLAVORCODES:
+        case ICAP_TIMEFILL:
+        case CAP_DEVICEONLINE:
+        case CAP_DEVICETIMEDATE:
+        case CAP_SERIALNUMBER:
+        case ICAP_EXPOSURETIME:
+        case ICAP_FLASHUSED2:
+        case ICAP_IMAGEFILTER:
+        case ICAP_LAMPSTATE:
+        case ICAP_LIGHTPATH:
+        case ICAP_NOISEFILTER:
+        case ICAP_OVERSCAN:
+        case ICAP_PHYSICALHEIGHT:
+        case ICAP_PHYSICALWIDTH:
+        case ICAP_UNITS:
+        case ICAP_ZOOMFACTOR:
+        case CAP_PRINTER:
+        case CAP_PRINTERENABLED:
+        case CAP_PRINTERINDEX:
+        case CAP_PRINTERMODE:
+        case CAP_PRINTERSTRING:
+        case CAP_PRINTERSUFFIX:
+        case CAP_AUTHOR:
+        case CAP_CAPTION:
+        case CAP_TIMEDATE:
+        case ICAP_AUTOBRIGHT:
+        case ICAP_BRIGHTNESS:
+        case ICAP_CONTRAST:
+        case ICAP_HIGHLIGHT:
+        case ICAP_ORIENTATION:
+        case ICAP_ROTATION:
+        case ICAP_SHADOW:
+        case ICAP_XSCALING:
+        case ICAP_YSCALING:
+        case ICAP_BITDEPTH:
+        case ICAP_BITDEPTHREDUCTION:
+        case ICAP_BITORDER:
+        case ICAP_CUSTHALFTONE:
+        case ICAP_HALFTONES:
+        case ICAP_PIXELFLAVOR:
+        case ICAP_PIXELTYPE:
+        case ICAP_THRESHOLD:
+        case CAP_LANGUAGE:
+        case ICAP_FRAMES:
+        case ICAP_MAXFRAMES:
+        case ICAP_SUPPORTEDSIZES:
+        case CAP_AUTOFEED:
+        case CAP_CLEARPAGE:
+        case CAP_FEEDERALIGNMENT:
+        case CAP_FEEDERENABLED:
+        case CAP_FEEDERLOADED:
+        case CAP_FEEDERORDER:
+        case CAP_FEEDPAGE:
+        case CAP_PAPERBINDING:
+        case CAP_PAPERDETECTABLE:
+        case CAP_REACQUIREALLOWED:
+        case CAP_REWINDPAGE:
+        case ICAP_PATCHCODEDETECTIONENABLED:
+        case ICAP_SUPPORTEDPATCHCODETYPES:
+        case ICAP_PATCHCODEMAXSEARCHPRIORITIES:
+        case ICAP_PATCHCODESEARCHPRIORITIES:
+        case ICAP_PATCHCODESEARCHMODE:
+        case ICAP_PATCHCODEMAXRETRIES:
+        case ICAP_PATCHCODETIMEOUT:
+        case CAP_BATTERYMINUTES:
+        case CAP_BATTERYPERCENTAGE:
+        case CAP_POWERDOWNTIME:
+        case CAP_POWERSUPPLY:
+        case ICAP_XNATIVERESOLUTION:
+        case ICAP_XRESOLUTION:
+        case ICAP_YNATIVERESOLUTION:
+        case ICAP_YRESOLUTION:
+            twCC = TWCC_CAPUNSUPPORTED;
+            break;
+        case CAP_XFERCOUNT:
+            /* This is a required capability that every source need to 
+               support but we havev't implemented yet. */
+            twCC = TWCC_SUCCESS;
+            break;
+        /*case ICAP_COMPRESSION:*/
+        case ICAP_IMAGEFILEFORMAT:
+        case ICAP_TILES:
+            twCC = TWCC_CAPUNSUPPORTED;
+            break; 
+        case ICAP_XFERMECH:
+            twCC = TWAIN_ICAPXferMech (pSource, pCapability, action);
+            break;
+        case ICAP_UNDEFINEDIMAGESIZE:
+        case CAP_CAMERAPREVIEWUI:
+        case CAP_ENABLEDSUIONLY:
+        case CAP_INDICATORS:
+        case CAP_UICONTROLLABLE:
+            twCC = TWCC_CAPUNSUPPORTED;
+            break;
+        default:
+            twCC = TWRC_FAILURE;
+            
+    }
+
+    return twCC;
+}
+
+TW_BOOL TWAIN_OneValueSet (pTW_CAPABILITY pCapability, TW_UINT32 value)
+{
+    pCapability->hContainer = (TW_HANDLE)GlobalAlloc (0, sizeof(TW_ONEVALUE));
+    
+    if (pCapability->hContainer)
+    {
+        pTW_ONEVALUE pVal = GlobalLock ((HGLOBAL) pCapability->hContainer);
+        pVal->ItemType = TWTY_UINT32;
+        pVal->Item = value;
+        GlobalUnlock ((HGLOBAL) pCapability->hContainer);
+        return TRUE;
+    }
+    else
+        return FALSE;
+}
+
+TW_BOOL TWAIN_OneValueGet (pTW_CAPABILITY pCapability, TW_UINT32 *pValue)
+{
+    pTW_ONEVALUE pVal = GlobalLock ((HGLOBAL) pCapability->hContainer);
+
+    if (pVal)
+    {
+        *pValue = pVal->Item;
+        GlobalUnlock ((HGLOBAL) pCapability->hContainer);
+        return TRUE;
+    }
+    else
+        return FALSE;
+}
+ 
+/* ICAP_XFERMECH */
+TW_UINT16 TWAIN_ICAPXferMech (activeDS *pSource, pTW_CAPABILITY pCapability,
+                              TW_UINT16 action)
+{ 
+    TRACE("ICAP_XFERMECH\n");
+
+    switch (action)
+    {
+        case MSG_GET:
+            if (pCapability->ConType == TWON_ONEVALUE)
+            {
+                if (!TWAIN_OneValueSet (pCapability, pSource->capXferMech))
+                    return TWCC_LOWMEMORY;
+            }
+            break;
+        case MSG_SET:
+            if (pCapability->ConType == TWON_ONEVALUE)
+            {
+		TW_UINT32 xfermechtemp;
+                if (!TWAIN_OneValueGet (pCapability, &xfermechtemp))
+                    return TWCC_LOWMEMORY;
+		pSource->capXferMech = xfermechtemp;
+            }
+            else if (pCapability->ConType == TWON_ENUMERATION)
+            {
+
+            }
+            break;
+        case MSG_GETCURRENT:
+            if (!TWAIN_OneValueSet (pCapability, pSource->capXferMech))
+                return TWCC_LOWMEMORY;
+            break;
+        case MSG_GETDEFAULT:
+            if (!TWAIN_OneValueSet (pCapability, TWSX_NATIVE))
+                return TWCC_LOWMEMORY;
+            break;
+        case MSG_RESET:
+            pSource->capXferMech = TWSX_NATIVE;
+            break;
+    }
+    return TWCC_SUCCESS;
+}

dlls/twain/ds_audio.c

+/*
+ * Copyright 2000 Corel Corporation
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "twain.h"
+#include "twain_i.h"
+#include "wine/debug.h"
+
+WINE_DEFAULT_DEBUG_CHANNEL(twain);
+
+/* DG_AUDIO/DAT_AUDIOFILEXFER/MSG_GET */
+TW_UINT16 TWAIN_AudioFileXferGet (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
+                                  TW_MEMREF pData)
+{
+    FIXME ("stub!\n");
+
+    return TWRC_FAILURE;
+}
+
+/* DG_AUDIO/DAT_AUDIOINFO/MSG_GET */
+TW_UINT16 TWAIN_AudioInfoGet (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
+                              TW_MEMREF pData)
+{
+    FIXME ("stub!\n");
+
+    return TWRC_FAILURE;
+}
+
+/* DG_AUDIO/DAT_AUDIONATIVEXFER/MSG_GET */
+TW_UINT16 TWAIN_AudioNativeXferGet (pTW_IDENTITY pOrigin, pTW_IDENTITY pDest,
+                                    TW_MEMREF pData)
+{
+    FIXME ("stub!\n");
+
+    return TWRC_FAILURE;
+}
+

dlls/twain/twain_32.spec

+name	twain_32
+type	win32
+init	TWAIN_LibMain
+
+import  user32.dll
+import  gdi32.dll
+import  kernel32.dll
+import  ntdll.dll
+
+debug_channels (twain)
+
+@ stdcall DSM_Entry(ptr ptr long long long ptr) DSM_Entry

include/config.h.in

@@ -334,6 +334,9 @@
 /* Define if you have the `rfork' function. */
 #undef HAVE_RFORK
 
+/* Define if we have SANE development environment */
+#undef HAVE_SANE
+
 /* Define if you have the <sched.h> header file. */
 #undef HAVE_SCHED_H