Loads an annotation from a file that is stored in memory.
#include "ltwrappr.h"
virtual L_INT LAnnotationWindow::AnnLoadMemory(phGlobalAnn, uMemSize)
Pointer to the file in memory to be loaded.
The size, in bytes, of the file referenced by phGlobalAnn.
Value | Meaning |
---|---|
SUCCESS | The function was successful. |
< 1 | An error occurred. Refer to Return Codes. |
Win32, x64.
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("C:\\LEADTOOLS22\\Resources\\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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