LDicomDS::GetRootElement
#include "Ltdic.h"
pDICOMELEMENT LDicomDS::GetRootElement(pElement)
pDICOMELEMENT pElement; |
/* pointer to a DICOMELEMENT structure */ |
Returns a pointer to the root of the specified item.
Parameter |
Description |
pElement |
Pointer to a DICOMELEMENT structure that contains an item in the Data Set. |
Returns
!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. |
Comments
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:
Required DLLs and Libraries
LTDIC For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application |
See Also
Example
/* This example displays the root’s name of an element */
L_VOID Test()
{
LDicomDS *pDS;
pDICOMELEMENT pRoot;
pDICOMELEMENT pElement;
pDICOMTAG pTag;
L_CHAR szUnknown[]="Unknown";
L_CHAR *p;
pDS = new LDicomDS(NULL);
pDS->InitDS( CLASS_XA_BIPLANE_IMAGE_STORAGE_RETIRED, 0);
pElement = pDS->FindFirstElement(NULL, TAG_RADIATION_SETTING, FALSE);
if (pElement != NULL)
{
pRoot = pDS->GetRootElement(pElement);
pTag = LDicomTag::Find(pRoot->nTag);
if (pTag != NULL)
{
p = pTag->pszName;
}
else
{
p = szUnknown;
}
MessageBox(NULL, p, "Notice", MB_OK);
}
delete pDS;
}