| LEADTOOLS DICOM C DLL Help > Function References > L_DicomGetParentIOD | 
#include "Ltdic.h"
L_LTDIC_API pDICOMIOD L_DicomGetParentIOD(pIOD)
| pDICOMIOD pIOD; | /* pointer to a DICOMIOD structure */ | 
Returns a pointer to the item in the IOD Structure that contains the parent of the specified item.
| Parameter | Description | 
| pIOD | Pointer to a DICOMIODstructure that contains an item in the IOD Structure. | 
Returns
| !NULL | A pointer to a DICOMIODstructure that contains the item in the IOD Structure that is the parent of the item specified in pIOD. | 
| NULL | pIOD has no parent. (pIOD is a Level 0 item.) | 
Comments
This function requires that the IOD Structure is evaluated as a tree structure.
The parent is the ancestor one level higher than the specified item. If the specified item is a Level 0 item, this function will return NULL. Please note that the numbering of the items in this illustration is arbitrary and does not imply order.

| If the passed pointer points to : | The function returns a pointer to : | 
| Item 1 | NULL | 
| Item 2 | Item 3 | 
| Item 4 | Item3 | 
| Item 5 | Item 6 | 
The following functions will also help you navigate the IOD Structure:
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
Example
This example displays the parent's name of an item
L_INT DicomGetParentIODExample(L_VOID)
{
   pDICOMIOD pParent;
   pDICOMIOD pElement;
   pElement = L_DicomFindIOD(NULL, TAG_PATIENT_NAME, IOD_TYPE_ELEMENT, FALSE);
   if (pElement != NULL)
   {
      pParent = L_DicomGetParentIOD(pElement);
      MessageBox(NULL, pParent->pszName, TEXT("Notice"), MB_OK);
   }
   return DICOM_SUCCESS;
}