LEADTOOLS Basic Data Types

Data Type Definition and Usage
L_WCHAR Defined as WCHAR
Used as a 16-bit UNICODE character
L_CHAR Defined as char
Used as a signed 8-bit integer
L_UCHAR Defined as unsigned char
Used as an unsigned 8-bit integer
Integer types
L_INT8 Defined as signed char
Used as an 8-bit signed integer
L_INT16 Defined as signed short
Used as a 16-bit signed integer
L_INT32 Defined as signed int
Used as a 32-bit signed integer
L_INT64 Defined as signed __int64
Used as a 64-bit signed integer
L_UINT8 Defined as unsigned char
Used as an 8-bit unsigned integer
L_UINT16 Defined as unsigned short
Used as a 16-bit unsigned integer
L_UINT32 Defined as unsigned int
Used as a 32-bit unsigned integer
L_UINT64 Defined as unsigned __int64
Used as a 64-bit unsigned integer
L_INT Defined as int
Used as a 32-bit signed integer
L_UINT Defined as unsigned int
Used as a 32-bit unsigned integer
Long and Short
L_LONG Defined as long
Used as a signed integer, 32-bits or larger
L_ULONG Defined as unsigned long
Used as an unsigned integer, 32-bits or larger
L_USHORT Defined as unsigned short
Used as a 16-bit unsigned integer
Float types
L_FLOAT Defined as float
Used as a floating point number
L_DOUBLE Defined as double
Used as a double precision floating point number
32/64 Types
L_INT_PTR Defined as INT_PTR
Guaranteed to be the same size as a pointer. The size changes with pointer size (32/64). Used where a pointer is cast to an integer type
L_UINT_PTR Defined as UINT_PTR
Unsigned variation of L_INT_PTR
L_LONG_PTR Defined as LONG_PTR
Guaranteed to be the same size as a pointer. The size changes with pointer size (32/64). Used where a pointer is cast to an integer type
L_ULONG_PTR Defined as ULONG_PTR
Unsigned variation of L_LONG_PTR
L_SIZE_T Defined as SIZE_T
Maximum number of bytes to which a pointer can refer
L_SSIZE_T Signed version of L_SIZE_T
L_IFDTYPE Defined as L_SIZE_T
Other types
L_VOID Defined as void
Used as a void
L_BITFIELD Defined as L_UINT
Used as a bit field
L_COLORREF Defined as COLORREF
See Windows SDK
Booleans
L_BOOL Defined as BOOL
Used as a boolean value
UNICODE types
L_TCHAR Defined as either char or TCHAR
If FOR_UNICODE is defined, then L_TCHAR will be defined as TCHAR
Handles
L_HANDLE Defined as HANDLE
See Windows SDK
L_HFILE Defined as HANDLE
See Windows SDK
L_SANEHANDLE Defined as HANDLE
See Windows SDK
L_SvgNodeHandle Defined as L_HANDLE
See Windows SDK
L_HWND Defined as HWND
See Windows SDK
L_HGDIOBJ Defined as HGDIOBJ
See Windows SDK
L_HDC Defined as HDC
See Windows SDK
L_HRGN Defined as HRGN
See Windows SDK
L_HPALETTE Defined as HPALETTE
See Windows SDK.
L_HBITMAP Defined as HBITMAP
See Windows SDK.
L_HCURSOR Defined as HCURSOR
See Windows SDK.
L_HICON Defined as HICON
See Windows SDK.
L_HMETAFILE Defined as HMETAFILE
See Windows SDK
L_HENHMETAFILE Defined as HENHMETAFILE
See Windows SDK
L_HDIB Defined as HDIB
See Windows SDK
L_HINSTANCE Defined as HINSTANCE
See Windows SDK
L_HPEN Defined as HPEN
See Windows SDK
L_HFONT Defined as HFONT
See Windows SDK.
L_HBRUSH Defined as HBRUSH
See Windows SDK
L_HGLOBAL Defined as HGLOBAL
See Windows SDK
DOCUMENTWRITER_HANDLE Defined as HANDLE
See Windows SDK
Structures
L_POINT Defined as POINT
See Windows SDK
L_RECT Defined as RECT
See Windows SDK
L_SIZE Defined as SIZE
See Windows SDK
L_BITMAPINFOHEADER Defined as BITMAPINFOHEADER
See Windows SDK
L_BITMAPINFO Defined as BITMAPINFO
See Windows SDK
L_RGBQUAD Defined as RGBQUAD
See Windows SDK
L_RGBQUAD16
typedef struct tagL\_RGBQUAD16 
{ 
   L\_UINT16 rgbBlue;  // 16-bit blue component 
   L\_UINT16 rgbGreen; // 16-bit green component 
   L\_UINT16 rgbRed;   // 16-bit red component 
   L\_UINT16 rgbReserved; // reserved - use 0 
} 
L\_RGBQUAD16; 

Calling Convention

Convention Description
L_xxx_API Defined as __declspec(dllimport) __stdcall
NOTE: xxx is the module designation.
Examples: L_LTDIS_API - LTDIS, L_LTKRN_API - LTKRN
Help Version 20.0.2020.2.19
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2020 LEAD Technologies, Inc. All Rights Reserved.

LEADTOOLS Raster Imaging C API Help