;" & _****************************************************************************
;" & _* Structure Definitions                                                    *
;" & _****************************************************************************

;" & _* Container for array of values;" & _*/
Global $tagTW_ARRAY = _
   "word  ItemType;" & _
   "uint  NumItems;" & _
   "byte   ItemList[1];"

;" & _* Used by application to get/set capability from/in a data source.;" & _*/
Global $tagTW_CAPABILITY = _
   "word  Cap;" & _
   "word  ConType;" & _
   "handle  hContainer;"

;" & _* Stores a group of individual values describing a capability.;" & _*/
Global $tagTW_ENUMERATION = _
   "word  ItemType;" & _
   "uint  NumItems;" & _
   "uint  CurrentIndex;" & _
   "uint  DefaultIndex;" & _
   "byte   ItemList[1];"

;" & _* This structure is used to pass specific information between the data source and the application.;" & _*/
Global $tagTW_INFO = _
    "word   InfoID;" & _
    "word   ItemType;" & _
    "word   NumItems;" & _
    "word   ReturnCode;" & _
    "word   CondCode;" & _
    "uint_ptr  Item;"

;" & _* Provides information about the currently selected device;" & _*/
Global $tagTW_FILESYSTEM = _
   "char  InputName[256];" & _
   "char  OutputName[256];" & _
   "ptr  Context;" & _
   "int  Recursive;" & _
   "boolean Subdirectories;" & _
   "int   FileType;" & _
   "uint  FileSystemType;" & _
   "uint  Size;" & _
   "char  CreateTimeDate[34];" & _
   "char  ModifiedTimeDate[34];" & _
   "uint  FreeSpace;" & _
   "int   NewImageSize;" & _
   "uint  NumberOfFiles;" & _
   "uint  NumberOfSnippets;" & _
   "uint  DeviceGroupMask;" & _
   "byte  Reserved[508];"

;" & _* A general way to describe the version of software that is running.;" & _*/
Global $tagTW_VERSION = _
   "word  MajorNum;" & _
   "word  MinorNum;" & _
   "word  Language;" & _
   "word  Country;" & _
   "char   Info[34];"

;" & _* Provides identification information about a TWAIN entity.*/
Global $tagTW_IDENTITY = _
    "uint  Id;" & _
    $tagTW_VERSION & _ ;"ptr     Version;" & _          ;must verify since it is as a $tagTW_VERSION structure
    "word      ProtocolMajor;" & _
    "word      ProtocolMinor;" & _
    "word      SupportedGroups;" & _
	"word      Reserved;" & _
    "char       Manufacturer[34];" & _
    "char       ProductFamily[34];" & _
    "char       ProductName[34];"

;" & _* Describes the "real" image data, that is, the complete image being transferred between the Source and application.;" & _*/
;double EZTAPI TWAIN_Fix32ToFloat(long nfix)
;{
;   "long fix32 fix;
;   TW_INT32 val;
;   *(long*)&fix = nfix;
;	val = ((TW_INT32)fix.Whole << 16) | ((TW_UINT32)fix.Frac & 0xffff);
;	return val / 65536.0;
;} // TWAIN_Fix32ToFloat

Global $tagTW_IMAGEINFO = _
   "long     fix32XResolution;" & _ ;"long fix32   XResolution;" & _ used long but must be converted to get value
   "long     fix32YResolution;" & _
   "word    fYResolution;" & _
   "int   ImageWidth;" & _
   "int   ImageLength;" & _
   "short   SamplesPerPixel;" & _
   "short   BitsPerSample;" & _
   "short   BitsPerPixel;" & _
   "boolean    Planar;" & _
   "short   PixelType;" & _
   "word  Compression;"

;" & _* Fixed point structure type.;" & _*/
Global $tagTW_FIX32 = _
    "short     Whole;" & _  ; short is 16 bits and word is 16bits could use long
    "word    Frac;"

;" & _* Defines a frame rectangle in ICAP_UNITS coordinates.;" & _*/
Global $tagTW_FRAME = _
   "long fix32Left;" & _
   "long fix32Top;" & _
   "long fix32Right;" & _
   "long fix32Bottom;"

;" & _* Describes the "real" image data, that is, the complete image being transferred between the Source and application.;" & _*/
Global $tagTW_IMAGEINFO = _
   "long fix32XResolution;" & _
   "long fix32YResolution;" & _
   "int   ImageWidth;" & _
   "int   ImageLength;" & _
   "short   SamplesPerPixel;" & _
   "short   BitsPerSample[8];" & _
   "short   BitsPerPixel;" & _
   "boolean    Planar;" & _
   "short   PixelType;" & _
   "word  Compression;"

;" & _* Describes the form of the acquired data being passed from the Source to the application.*/
Global $tagTW_IMAGEMEMXFER = _
   "word  Compression;" & _
   "uint  BytesPerRow;" & _
   "uint  Columns;" & _
   "uint  Rows;" & _
   "uint  XOffset;" & _
   "uint  YOffset;" & _
   "uint  BytesWritten;" & _
   "uint  Flags;" & _
   "uint  Length;" & _
   "ptr  TheMem;"

;" & _* Stores a single value (item) which describes a capability.;" & _*/
Global $tagTW_ONEVALUE = _
   "word  ItemType;" & _
   "uint  Item;"


;" & _* This structure is used to handle the user interface coordination between an application and a Source.;" & _*/
Global $tagTW_USERINTERFACE = _
   "boolean    ShowUI;" & _
   "boolean    ModalUI;" & _
   "handle  hParent;"


Global $tagTW_STATUS = _
   "word  ConditionCode;" & _
   "word  Data;" & _
   "word  Reserved;"

#comments-Start

;" & _* Describes the information necessary to transfer a JPEG-compressed image.;" & _*/
Global $tagTW_JPEGCOMPRESSION = _
   "word   ColorSpace;" & _
   "uint   SubSampling;" & _
   "word   NumComponents;" & _
   "word   RestartFrequency;" & _
   "word   QuantMap[4];" & _
   TW_MEMORY   QuantTable[4];" & _
   "word   HuffmanMap[4];" & _
   TW_MEMORY   HuffmanDC[2];" & _
   TW_MEMORY   HuffmanAC[2];"

;" & _* Defines the parameters used for channel-specific transformation.;" & _*/
Global $tag = _
   "long fix32   StartIn;" & _
   "long fix32   BreakIn;" & _
   "long fix32   EndIn;" & _
   "long fix32   StartOut;" & _
   "long fix32   BreakOut;" & _
   "long fix32   EndOut;" & _
   "long fix32   Gamma;" & _
   "long fix32   SampleCount;" & _
} TW_DECODEFUNCTION, FAR;" & _* pTW_DECODEFUNCTION;" & _

;" & _* Stores a Fixed point number in two parts, a whole and a fractional part.;" & _*/
Global $tag = _
   TW_DECODEFUNCTION   Decode[3];" & _
   "long fix32            Mix[3][3];" & _
} TW_TRANSFORMSTAGE, FAR;" & _* pTW_TRANSFORMSTAGE;" & _

;" & _* Information about audio data;" & _*/
Global $tag = _
   TW_STR255  Name;" & _
   "uint  Reserved;" & _
} TW_AUDIOINFO, FAR;" & _* pTW_AUDIOINFO;" & _

;" & _* Used to register callbacks.;" & _*/
Global $tag  = _
    TW_MEMREF      CallBackProc;" & _
    #if defined(__APPLE__) ;" & _* cf: Mac version of TWAIN.h;" & _*/
        TW_MEMREF  RefCon;" & _
    #else
        "uint  RefCon;" & _
    #endif
    "short       Message;" & _
} TW_CALLBACK, FAR;" & _* pTW_CALLBACK;" & _

;" & _* Used to register callbacks.;" & _*/
Global $tag  = _
    TW_MEMREF   CallBackProc;" & _
    "uint_ptr  RefCon;" & _
    "short    Message;" & _
} TW_CALLBACK2, FAR;" & _* pTW_CALLBACK2;" & _

;" & _* Defines a CIE XYZ space tri-stimulus value.;" & _*/
Global $tag = _
   "long fix32   X;" & _
   "long fix32   Y;" & _
   "long fix32   Z;" & _
} TW_CIEPOINT, FAR;" & _* pTW_CIEPOINT;" & _

;" & _* Defines the mapping from an RGB color space device into CIE 1931 (XYZ) color space.;" & _*/
Global $tag = _
   "word           ColorSpace;" & _
   "short            LowEndian;" & _
   "short            DeviceDependent;" & _
   "int            VersionNumber;" & _
   TW_TRANSFORMSTAGE   StageABC;" & _
   TW_TRANSFORMSTAGE   StageLMN;" & _
   TW_CIEPOINT         WhitePoint;" & _
   TW_CIEPOINT         BlackPoint;" & _
   TW_CIEPOINT         WhitePaper;" & _
   TW_CIEPOINT         BlackInk;" & _
   "long fix32            Samples[1];" & _
} TW_CIECOLOR, FAR;" & _* pTW_CIECOLOR;" & _

;" & _* Allows for a data source and application to pass custom data to each other.;" & _*/
Global $tag = _
    "uint  InfoLength;" & _
    "handle  hData;" & _
}TW_CUSTOMDSDATA, FAR;" & _*pTW_CUSTOMDSDATA;" & _

;" & _* Provides information about the Event that was raised by the Source;" & _*/
Global $tag = _
   "uint  Event;" & _
   TW_STR255  DeviceName;" & _
   "uint  BatteryMinutes;" & _
   "short   BatteryPercentage;" & _
   "int   PowerSupply;" & _
   "long fix32   XResolution;" & _
   "long fix32   YResolution;" & _
   "uint  FlashUsed2;" & _
   "uint  AutomaticCapture;" & _
   "uint  TimeBeforeFirstCapture;" & _
   "uint  TimeBetweenCaptures;" & _
} TW_DEVICEEVENT, FAR;" & _* pTW_DEVICEEVENT;" & _

;" & _* This structure holds the tri-stimulus color palette information for TW_PALETTE8 structures.*/
Global $tag = _
   "byte    Index;" & _
   "byte    Channel1;" & _
   "byte    Channel2;" & _
   "byte    Channel3;" & _
} TW_ELEMENT8, FAR;" & _* pTW_ELEMENT8;" & _



;" & _* Used to pass application events/messages from the application to the Source.;" & _*/
Global $tag = _
   TW_MEMREF  pEvent;" & _
   "word  TWMessage;" & _
} TW_EVENT, FAR;" & _* pTW_EVENT;" & _



Global $tag = _
    "uint   NumInfos;" & _
    TW_INFO     Info[1];" & _
}TW_EXTIMAGEINFO, FAR* pTW_EXTIMAGEINFO;" & _



;" & _* This structure is used by the application to specify a set of mapping values to be applied to grayscale data.;" & _*/
Global $tag = _
   TW_ELEMENT8         Response[1];" & _
} TW_GRAYRESPONSE, FAR;" & _* pTW_GRAYRESPONSE;" & _







;" & _* Involves information about the original size of the acquired image.;" & _*/
Global $tag = _
   TW_FRAME   Frame;" & _
   "uint  DocumentNumber;" & _
   "uint  PageNumber;" & _
   "uint  FrameNumber;" & _
} TW_IMAGELAYOUT, FAR;" & _* pTW_IMAGELAYOUT;" & _

;" & _* Provides information for managing memory buffers.;" & _*/
Global $tag = _
   "uint  Flags;" & _
   "uint  Length;" & _
   TW_MEMREF  TheMem;" & _
} TW_MEMORY, FAR;" & _* pTW_MEMORY;" & _



;" & _* Describes the information necessary to transfer a JPEG-compressed image.;" & _*/
Global $tag = _
   "word   ColorSpace;" & _
   "uint   SubSampling;" & _
   "word   NumComponents;" & _
   "word   RestartFrequency;" & _
   "word   QuantMap[4];" & _
   TW_MEMORY   QuantTable[4];" & _
   "word   HuffmanMap[4];" & _
   TW_MEMORY   HuffmanDC[2];" & _
   TW_MEMORY   HuffmanAC[2];" & _
} TW_JPEGCOMPRESSION, FAR;" & _* pTW_JPEGCOMPRESSION;" & _

;" & _* Collects scanning metrics after returning to state 4;" & _*/
Global $tag = _
   "uint    SizeOf;" & _
   "uint    ImageCount;" & _
   "uint    SheetCount;" & _
} TW_METRICS, FAR;" & _* pTW_METRICS;" & _



;" & _* This structure holds the color palette information.;" & _*/
Global $tag = _
   "word    NumColors;" & _
   "word    PaletteType;" & _
   TW_ELEMENT8  Colors[256];" & _
} TW_PALETTE8, FAR;" & _* pTW_PALETTE8;" & _

;" & _* Used to bypass the TWAIN protocol when communicating with a device;" & _*/
Global $tag = _
   TW_MEMREF  pCommand;" & _
   "uint  CommandBytes;" & _
   "int   Direction;" & _
   TW_MEMREF  pData;" & _
   "uint  DataBytes;" & _
   "uint  DataBytesXfered;" & _
} TW_PASSTHRU, FAR;" & _* pTW_PASSTHRU;" & _

;" & _* This structure tells the application how many more complete transfers the Source currently has available.;" & _*/
Global $tag = _
   "word Count;" & _
   union = _
       "uint EOJ;" & _
       "uint Reserved;" & _
       #if defined(__APPLE__) ;" & _* cf: Mac version of TWAIN.h;" & _*/
           union = _
               "uint EOJ;" & _
               "uint Reserved;" & _
           } TW_JOBCONTROL;" & _
       #endif
   };" & _
} TW_PENDINGXFERS, FAR;" & _*pTW_PENDINGXFERS;" & _

;" & _* Stores a range of individual values describing a capability.;" & _*/
Global $tag = _
   "word  ItemType;" & _
   "uint  MinValue;" & _
   "uint  MaxValue;" & _
   "uint  StepSize;" & _
   "uint  DefaultValue;" & _
   "uint  CurrentValue;" & _
} TW_RANGE, FAR;" & _* pTW_RANGE;" & _

;" & _* This structure is used by the application to specify a set of mapping values to be applied to RGB color data.;" & _*/
Global $tag = _
   TW_ELEMENT8         Response[1];" & _
} TW_RGBRESPONSE, FAR;" & _* pTW_RGBRESPONSE;" & _

;" & _* Describes the file format and file specification information for a transfer through a disk file.;" & _*/
Global $tag = _
   TW_STR255 FileName;" & _
   "word Format;" & _
   "short  VRefNum;" & _
} TW_SETUPFILEXFER, FAR;" & _* pTW_SETUPFILEXFER;" & _

;" & _* Provides the application information about the Source's requirements and preferences regarding allocation of transfer buffer(s).;" & _*/
Global $tag = _
   "uint MinBufSize;" & _
   "uint MaxBufSize;" & _
   "uint Preferred;" & _
} TW_SETUPMEMXFER, FAR;" & _* pTW_SETUPMEMXFER;" & _

;" & _* Describes the status of a source.;" & _*/
Global $tag = _
   "word  ConditionCode;" & _
   union = _
     "word  Data;" & _
     "word  Reserved;" & _
   };" & _
} TW_STATUS, FAR;" & _* pTW_STATUS;" & _

;" & _* Translates the contents of Status into a localized UTF8string.;" & _*/
Global $tag = _
   TW_STATUS    Status;" & _
   "uint    Size;" & _
   "handle    UTF8string;" & _
} TW_STATUSUTF8, FAR;" & _* pTW_STATUSUTF8;" & _

Global $tag = _
   "uint    SizeOf;" & _
   "word    CommunicationManager;" & _
   "handle    Send;" & _
   "uint    SendSize;" & _
   "handle    Receive;" & _
   "uint    ReceiveSize;" & _
} TW_TWAINDIRECT, FAR;" & _* pTW_TWAINDIRECT;" & _

;" & _* This structure is used to handle the user interface coordination between an application and a Source.;" & _*/
Global $tag = _
   "boolean    ShowUI;" & _
   "boolean    ModalUI;" & _
   "handle  hParent;" & _
} TW_USERINTERFACE, FAR;" & _* pTW_USERINTERFACE;" & _

;" & _* DAT_SETUPFILEXFER2. Sets up DS to application data transfer via a file. Added 1.9;" & _*/
Global $tag = _
   TW_MEMREF FileName;" & _
   "word FileNameType;" & _
   "word Format;" & _
   "short  VRefNum;" & _
   "uint parID;" & _
} TW_SETUPFILEXFER2, FAR;" & _* pTW_SETUPFILEXFER2;" & _

;" & _* DAT_TWUNKIDENTITY. Provides DS identity and 'other' information necessary;" & _*/
;" & _*                    across thunk link.;" & _*/
Global $tag = _
   TW_IDENTITY identity;" & _
   TW_STR255   dsPath;" & _
} TW_TWUNKIDENTITY, FAR;" & _* pTW_TWUNKIDENTITY;" & _

;" & _* Provides DS_Entry parameters over thunk link.;" & _*/
Global $tag
= _
    "byte     destFlag;" & _
    TW_IDENTITY dest;" & _
    "int    dataGroup;" & _
    "short    dataArgType;" & _
    "short    message;" & _
    "int    pDataSize;" & _
    //  TW_MEMREF   pData;" & _
} TW_TWUNKDSENTRYPARAMS, FAR;" & _* pTW_TWUNKDSENTRYPARAMS;" & _

;" & _* Provides DS_Entry results over thunk link.;" & _*/
Global $tag
= _
    "word   returnCode;" & _
    "word   conditionCode;" & _
    "int    pDataSize;" & _
    //  TW_MEMREF   pData;" & _
} TW_TWUNKDSENTRYRETURN, FAR;" & _* pTW_TWUNKDSENTRYRETURN;" & _

Global $tag
= _
    "word Cap;" & _
    "word Properties;" & _
} TW_CAPEXT, FAR;" & _* pTW_CAPEXT;" & _

;" & _* DAT_SETUPAUDIOFILEXFER, information required to setup an audio file transfer;" & _*/
Global $tag = _
   TW_STR255  FileName;" & _ ;" & _* full path target file;" & _*/
   "word  Format;" & _    * one of TWAF_xxxx;" & _*/
   "short VRefNum;" & _
} TW_SETUPAUDIOFILEXFER, FAR;" & _* pTW_SETUPAUDIOFILEXFER;" & _


;" & _* DAT_ENTRYPOINT. returns essential entry points.;" & _*/
Global $tag = _
   "uint         Size;" & _
   DSMENTRYPROC      DSM_Entry;" & _
   DSM_MEMALLOCATE   DSM_MemAllocate;" & _
   DSM_MEMFREE       DSM_MemFree;" & _
   DSM_MEMLOCK       DSM_MemLock;" & _
   DSM_MEMUNLOCK     DSM_MemUnlock;" & _
} TW_ENTRYPOINT, FAR;" & _* pTW_ENTRYPOINT;" & _

;" & _* DAT_FILTER*/
Global $tag = _
  "uint Size;" & _
  "uint HueStart;" & _
  "uint HueEnd;" & _
  "uint SaturationStart;" & _
  "uint SaturationEnd;" & _
  "uint ValueStart;" & _
  "uint ValueEnd;" & _
  "uint Replacement;" & _
} TW_FILTER_DESCRIPTOR,;" & _*pTW_FILTER_DESCRIPTOR;" & _

;" & _* DAT_FILTER;" & _*/
Global $tag = _
  "uint Size;" & _
  "uint DescriptorCount;" & _
  "uint MaxDescriptorCount;" & _
  "uint Condition;" & _
  "handle hDescriptors;" & _
} TW_FILTER,;" & _*pTW_FILTER;" & _
#comments-End