| LEADTOOLS DICOM C DLL Help > Function References > L_DicomGetLayerImageRefElement | 
#include "l_bitmap.h"
L_LTDIC_API pDICOMELEMENT L_DicomGetLayerImageRefElement(hDS, pGraphicAnnSQItem, pszImageSOPInstance)
| HDICOMDS hDS; | /* a DICOM handle */ | 
| pDICOMELEMENT pGraphicAnnSQItem; | /* pointer to a DICOMELEMENT structure */ | 
| L_TCHAR* pszImageSOPInstance; | /* referenced image SOP instance UID */ | 
Gets the item element of the specified SOP instance under the "Referenced Image Sequence" (0008,1140) in the specified "Graphic Annotation Sequence" (0070,0001) item.
| Parameter | Description | 
| hDS | A DICOM handle. | 
| pGraphicAnnSQItem | Pointer to an item element under the "Graphic Annotation Sequence" (0008,1115) in the "Graphic Annotation Module". | 
| pszImageSOPInstance | SOP Instance UID of the image whose item element is to be retrieved. | 
Returns
| !NULL | The function was successful. | 
| NULL | An error occurred. Refer to Return Codes. | 
Comments
This function retrieves the item element of the specified SOP instance under the "Referenced Image Sequence" (0008,1140) in the specified "Graphic Annotation Sequence" (0070,0001) item.
Required DLLs and Libraries
| 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, Linux.
See Also
| Functions: | L_DicomAddLayerImageRef, L_DicomGetLayerImageRefCount, L_DicomRemoveImageRefFromLayer, L_DicomRemoveAllImageRefsFromLayer, L_DicomRemoveAllImageRefFromAllLayers | 
| Topics: | |
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Example
L_INT DicomGetImageElementInAnnSequenceExample(HDICOMDS hPresStateDS)
{
   pDICOMELEMENT pGraphicAnnSQItem  = L_DicomFindFirstGraphicAnnSQItem(hPresStateDS);
   L_TCHAR* pszSOPInstanceUID        = L_DicomGetPresStateImageRefSOPInstance( hPresStateDS,
                                                                              L_DicomFindFirstPresStateRefSeriesItem(hPresStateDS),0);
   pDICOMELEMENT pElement = L_DicomGetLayerImageRefElement (hPresStateDS,
                                                            pGraphicAnnSQItem, 
                                                            pszSOPInstanceUID);
   if (pElement)
   {
      MessageBox( NULL, 
                  TEXT("Element item found."), 
                  TEXT("Note"), 
                  MB_OK);
      return DICOM_SUCCESS;
   }
   return DICOM_ERROR_NULL_PTR;
}