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

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.

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; 
}