L_2bFixed2bNumberToDouble

Summary

Converts a 2-bytes fixed, 2-bytes fraction number format into a double fractional value.

Syntax

#include "ltkrn.h"
#include "ltclr.h"

L_LTCLR_API L_DOUBLE L_2bFixed2bNumberToDouble(uNumber)

Parameters

L_UINT32 uNumber

Value that represents the 2-bytes fixed, 2-bytes fraction number value to convert.

Returns

A double value that contains a fraction number representing the value passed to the function.

Comments

This function is used for ICC profiles purposes. The number passed must be one of the following types: L_IccS15Fixed16Number or L_IccU16Fixed16Number.

Each of these types is 4-bytes, divided into 2-bytes that contain the fixed part of the number, and 2-bytes that contain the fractional part of the number.

The (2b) found in the function name means (2-bytes).

Required DLLs and Libraries

• LTCLR
• For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Platforms

Win32, x64.

See Also

Functions

• L_InitICCProfile
• L_FreeICCProfile
• L_SaveICCProfile
• L_LoadICCProfile
• L_FillICCProfileStructure
• L_FillICCProfileFromICCFile
• L_InitICCHeader
• L_SetICCCMMType
• L_SetICCDeviceClass
• L_SetICCColorSpace
• L_SetICCConnectionSpace
• L_SetICCPrimaryPlatform
• L_SetICCFlags
• L_SetICCDevManufacturer
• L_SetICCDevModel
• L_SetICCDeviceAttributes
• L_SetICCRenderingIntent
• L_SetICCCreator
• L_SetICCDateTime
• L_SetICCProfileId
• L_U8Fixed8NumberToDouble
• L_DoubleToU8Fixed8Number
• L_DoubleTo2bFixed2bNumber
• L_SetICCTagData
• L_GetICCTagData
• L_CreateICCTagData
• L_DeleteICCTag
• L_GenerateICCFile
• L_GenerateICCPointer
• L_GetICCTagTypeSig
• L_FreeICCTagType
• L_ConvertParametricCurveTypeToBuffer
• L_ConvertCurveTypeToBuffer
• L_ConvertCLUTToBuffer
• L_GetParametricCurveNumberOfParameters

Topics

• Using ICC Profile Functions
• ICC Profile Functions: Tags

Example

This example takes a 2-bytes fixed, 2-bytes fraction value, and then converts it into double.

L_DOUBLE TowbFixed2bNumberToDoubleExample(L_IccU16Fixed16Number uNumber, L_INT* nRet) 
{ 
   *nRet = SUCCESS; 
   return L_2bFixed2bNumberToDouble(uNumber); 
}