|
The following table shows Delphi data types that correspond to DTWAIN types.
DTWAIN Data Type
|
Delphi Data Type
|
DTWAIN_ARRAY
|
Integer
|
DTWAIN_CALLBACK_PROC
|
Pointer
|
DTWAIN_BOOL
|
LongBool
|
DTWAIN_FLOAT
|
Double
|
DTWAIN_FRAME
|
Integer
|
DTWAIN_OCRENGINE
|
Integer
|
DTWAIN_PDFTEXTELEMENT
|
Integer
|
DTWAIN_RANGE
|
Integer
|
DTWAIN_SOURCE
|
Integer
|
HANDLE
|
LongInt
|
LONG
|
LongInt
|
DTWAIN_LONG64
|
Int64
|
LPCTSTR
|
PAnsiChar
|
LPDTWAIN_ARRAY
|
var LongInt
|
LPDTWAIN_FLOAT
|
var Double
|
LPLONG
|
var LongInt
|
LPTSTR
|
PAnsiChar if using ANSI version of DTWAIN, PChar if using Unicode version of DTWAIN.
|
LPVOID
|
Pointer
|
TWAIN_IDENTITY
|
Int64
|
For 64-bit applications, the following table shows Delphi 64-bit data types that correspond to DTWAIN types.
DTWAIN Data Type
|
Delphi Data Type
|
DTWAIN_ARRAY
|
Int64
|
DTWAIN_CALLBACK_PROC
|
Pointer
|
DTWAIN_BOOL
|
LongBool
|
DTWAIN_FLOAT
|
Double
|
DTWAIN_FRAME
|
Int64
|
DTWAIN_OCRENGINE
|
Int64
|
DTWAIN_PDFTEXTELEMENT
|
Integer
|
DTWAIN_RANGE
|
Int64
|
DTWAIN_SOURCE
|
Int64
|
HANDLE
|
Int64
|
LONG
|
Int64
|
DTWAIN_LONG64
|
Int64
|
LPCTSTR
|
PAnsiChar if using ANSI version of DTWAIN, PChar if using Unicode version of DTWAIN
|
LPDTWAIN_ARRAY
|
var Int64
|
LPDTWAIN_FLOAT
|
var Double
|
LPLONG
|
var LongInt
|
LPTSTR
|
PAnsiChar
|
LPVOID
|
Pointer
|
TWAIN_IDENTITY
|
Int64
|
|