#include "ltwrappr.h"
virtual L_INT LAnnContainer::LoadMemory(pMem, uMemSize)
L_UCHAR * pMem; |
/* pointer to the file in memory to be loaded */ |
L_UINT32 uMemSize; |
/* size of the file in memory */ |
Loads an annotation from a file that is stored in memory.
Parameter |
Description |
pMem |
Pointer to the file in memory to be loaded. |
uMemSize |
Size of the file in memory (in bytes). |
Returns
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
Comments
If this function returns SUCCESS and phObject is updated with NULL, there are no annotation objects to load.
Required DLLs and Libraries
LTANN For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
Win32, x64.
See Also
Example
#define MAKE_IMAGE_PATH(pFileName) TEXT("C:\\Users\\Public\\Documents\\LEADTOOLS Images\\")pFileName L_INT LAnnContainer_LoadMemoryExample(LAnnContainer * 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( MAKE_IMAGE_PATH(TEXT("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 = pLeadAContainer->LoadMemory((L_UCHAR *)pData, (L_UINT32)uMemSize); if(nRet != SUCCESS) return nRet; /* Clean up */ GlobalUnlock (hFileInMemory); GlobalFree (hFileInMemory); return SUCCESS; }