LAnnotationWindow::AnnLoadMemory

#include "ltwrappr.h"

virtual L_INT LAnnotationWindow::AnnLoadMemory(phGlobalAnn, uMemSize)

L_UCHAR * phGlobalAnn;

pointer to the file in memory to be loaded

L_UINT32 uMemSize;

file size, in bytes

Loads an annotation from a file that is stored in memory.

Parameter

Description

phGlobalAnn

Pointer to the file in memory to be loaded.

uMemSize

The size, in bytes, of the file referenced by phGlobalAnn.

Returns

SUCCESS

The function was successful.

< 1

An error occurred. Refer to Return Codes.

Required DLLs and Libraries

LTANN
LTDIS
LTDLG
LTEFX
LTFIL
LTIMG
LTSCR
LTTWN

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:

Class Members

Topics:

Annotation Functions: Implementing Automation

 

Implementing Annotations

 

Automated User Interface for Annotations

Example

L_INT LAnnotationWindow_AnnLoadMemoryExample(LAnnContainer  * pLeadAContainer, LAnnotationWindow * pLeadAnnWnd) 
{ 
   UNREFERENCED_PARAMETER(pLeadAContainer); 
 
   L_INT nRet; 
   LAnnContainer TmpContainer ;// Temporary container for the annotations  
   HGLOBAL hFileInMemory = NULL;// Memory handle  
   L_SIZE_T uMemSize; // Size of the data in memory  
   L_UCHAR  *pData; // Pointer to the data in memory 
 
   // Load the initial annotations 
   nRet = TmpContainer.Load( TEXT("%UserProfile%\\My Documents\\LEADTOOLS Images\\TEST.ANN")); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   // Save the annotations as a file in memory  
   nRet = TmpContainer.SaveMemory( ANNFMT_XML, FALSE, &hFileInMemory, &uMemSize); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   // Destroy the temporary container 
   nRet = TmpContainer.Destroy( ANNFLAG_RECURSE); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   // Get the pointer to the memory-resident file  
   pData = (L_UCHAR  *) GlobalLock (hFileInMemory); 
 
   // Load the new file from memory 
   nRet = pLeadAnnWnd->AnnLoadMemory((L_UCHAR *)pData, (L_UINT32)uMemSize); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   /* Clean up */ 
   GlobalUnlock (hFileInMemory); 
   GlobalFree (hFileInMemory); 
 
   return SUCCESS; 
}
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