LFile::ReadFileTransforms

#include "ltwrappr.h"

virtual L_INT LFile::ReadFileTransforms(pTransforms, pLoadFileOption=NULL)

pFILETRANSFORMS pTransforms;

pointer to a transform structure

pLOADFILEOPTION pLoadFileOption;

pointer to optional extended load options

Reads the transforms stored with an image in a FlashPix file.

Parameter

Description

pTransforms

Pointer to a transform structure.

pLoadFileOption

Pointer to optional extended load options. Pass NULL to use the default load options.

Returns

SUCCESS

The function was successful.

< 1

An error occurred. Refer to Return Codes.

Comments

Note: Page number is specified in the LOADFILEOPTION structure. To load a FlashPix file with or without the transforms, see FlashPix Transforms Options.

For more information on transforms in general, refer to FILETRANSFORMS.

Required DLLs and Libraries

LTFIL
File format DLLs

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:

LBitmap::HighPassFilter, Class Members

Topics:

Raster Image Functions: Getting and Setting File Information

 

Raster Image Functions: Doing Geometric Transformations

 

Raster Image Functions: Modifying Intensity Values

 

Raster Image Functions: Loading Files

 

Loading and Saving Images

Example

#define MAKE_IMAGE_PATH(pFileName) TEXT("C:\\Users\\Public\\Documents\\LEADTOOLS Images\\")pFileName 
L_INT LFile__ReadFileTransformsExample() 
{ 
   L_INT nRet; 
   LFile            LeadFile ; 
   FILETRANSFORMS  FileTransforms; 
   LeadFile.SetFileName(MAKE_IMAGE_PATH(TEXT("image1.FPX"))) ; 
   nRet = LeadFile.ReadFileTransforms( &FileTransforms, NULL); 
   if(nRet != SUCCESS) 
      return nRet; 
   //Increase the contrast by 20% 
   FileTransforms.fContrastAdjustment *= (L_FLOAT)1.2; 
   nRet = LeadFile.WriteFileTransforms( &FileTransforms, FALSE, NULL); 
   if(nRet != SUCCESS) 
      return nRet; 
   return SUCCESS; 
}

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