| LEADTOOLS DICOM C DLL Help > Function References > L_DicomGetLayerImageRefCount | 
#include "l_bitmap.h"
L_LTDIC_API L_UINT16 L_DicomGetLayerImageRefCount(hDS, pGraphicAnnSQItem, pCount)
| HDICOMDS hDS; | /* a DICOM handle */ | 
| pDICOMELEMENT pGraphicAnnSQItem; | /* pointer to a DICOMELEMENT structure */ | 
| L_UINT* pCount; | /* pointer to a variable which will be updated with the referenced image count */ | 
Retrieves number of referenced images, which correspond to the specified item under the "Graphic Annotation Sequence" (0070,0001).
| Parameter | Description | 
| hDS | A DICOM handle. | 
| pGraphicAnnSQItem | Pointer to an item element under the "Graphic Annotation Sequence" (0008,1115) in the "Graphic Annotation Module". | 
| pCount | pointer to a variable, which will be updated with the number of referenced images. | 
Returns
| DICOM_SUCCESS | The function was successful. | 
| >0 | An error occurred. Refer to Return Codes. | 
Comments
This function retrieves the number of referenced images, which correspond to the specified item under the "Graphic Annotation Sequence" (0008,1115) in the "Graphic Annotation Module".
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_DicomRemoveImageRefFromLayer, L_DicomRemoveAllImageRefsFromLayer, L_DicomRemoveAllImageRefFromAllLayers, L_DicomGetLayerImageRefElement | 
| Topics: | |
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Example
L_INT DicomGetReferencedImageCountExample(HDICOMDS hPresStateDS)
{
   pDICOMELEMENT pGraphicAnnSQItem = L_DicomFindFirstGraphicAnnSQItem(hPresStateDS);
   L_UINT uCount;
   L_UINT16 nRet = L_DicomGetLayerImageRefCount(  hPresStateDS , 
                                                   pGraphicAnnSQItem, 
                                                   & uCount);
   if (nRet != DICOM_SUCCESS)
      return nRet;
   if (uCount >= 0)
   {
      L_TCHAR szText[256] = TEXT("\0");
      wsprintf(szText, TEXT("Number of images is:  %i"), uCount);
      MessageBox( NULL, 
                  szText, 
                  TEXT("Note"), 
                  MB_OK);
   }
   return DICOM_SUCCESS;
}