LFile::ReadStamp

Summary

Reads a thumbnail image stored in a file and loads it into a specified bitmap.

Syntax

#include "ltwrappr.h"

virtual L_INT LFile::ReadStamp(pLoadFileOption=NULL)

Parameters

pLOADFILEOPTION pLoadFileOption

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

Returns

Value Meaning
SUCCESS The function was successful.
< 1 An error occurred. Refer to Return Codes.

Comments

Only EXIF, CMP, JFIF, FlashPix and HEIF/HEIC formats support stamps. However, not all files of these formats contain stamps.

NOTE: At this time, the only multipage format that supports stamps is HEIF/HEIC.

Required DLLs and Libraries

Platforms

Win32, x64.

See Also

Functions

Topics

Example

L_INT LFile__ReadStampExample() 
{ 
   LFile         LeadFile ; 
   LBitmapBase   LeadBitmap ; 
   L_INT          nRet = 0 ; 
 
   LeadFile.SetBitmap(&LeadBitmap); 
   LeadFile.SetFileName(MAKE_IMAGE_PATH(TEXT("Image1.fpx"))); 
 
   //Reads a thumbnail image stored in a FlashPix file and loads it into a specified bitmap. 
   nRet = LeadFile.ReadStamp(); 
   if (nRet == SUCCESS) 
   { 
      //Puts a stamp, in an existing FlashPix file "IMAGE1.FPX" 
      LeadFile.SetFileName(MAKE_IMAGE_PATH(TEXT("IMAGE1.FPX"))); 
      nRet = LeadFile.WriteStamp(NULL); 
   } 
   else 
   { 
      MessageBox(NULL,TEXT("File has no thumbnail image"),TEXT("Stamp"),MB_OK); 
   } 
 
   return nRet; 
} 
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LEADTOOLS Raster Imaging C++ Class Library Help

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© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.