Returns a pointer to the root of the specified item.
#include "ltdic.h"
L_LTDIC_API pDICOMELEMENT L_DicomGetRootKey(hDS, pElement)
A DICOM handle.
Pointer to a DICOMELEMENT structure that contains an item in the Data Set.
| Value | Meaning |
|---|---|
| !NULL | A pointer to a DICOMELEMENT structure that contains the item in the Data Set that is the root of the item specified in pElement. |
| NULL | The Data Set is empty or pElement is NULL. |
The root is the Level 0 ancestor of pElement. If pElement points to an item on Level 0, a pointer to that same item will be returned. 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 | Item 2 |
| Item 3 | Item 2 |
| Item 4 | Item4 |
| Item 5 | Item 6 |
The following functions will also help you navigate the Data Set:
Win32, x64, Linux.
For an example, refer to L_DicomInsertKey.
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