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LDicomIOD::GetChild

Summary

Returns a pointer to the item in the IOD Structure that contains the first child of the specified item.

Syntax

#include "Ltdic.h"

static pDICOMIOD LDicomIOD::GetChild(pIOD)

Parameters

pDICOMIOD pIOD

Pointer to a DICOMIOD structure that contains an item in the IOD Structure.

Returns

Value	Meaning
!NULL	A pointer to a DICOMIOD structure that contains the item in the IOD Structure that is the first child of the item specified in pIOD.
NULL	pIOD has no child items.

Comments

This function requires that the IOD Structure is evaluated as a tree structure.

The child is the offspring one level lower than the specified item. If the specified item has no child items, this function will return NULL. For example:

$image\GetChild.gif$

If the passed pointer points to	The function returns a pointer to
Item 1	NULL
Item 2	Item 3
Item 4	Item 5
Item 6	NULL

The following functions will also help you navigate the IOD Structure:

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

Platforms

Win32, x64

Example

This example displays the CT IOD.

L_VOID ShowTree(L_INT nLevel, pDICOMIOD pParentIOD) 
{ 
   pDICOMIOD pIOD; 
 
   if (pParentIOD == NULL) 
   { 
      pIOD = LDicomIOD::GetFirst(pParentIOD, TRUE); 
   } 
   else 
   { 
      pIOD = LDicomIOD::GetChild(pParentIOD); 
   } 
 
   while (pIOD != NULL) 
   { 
      for (L_INT i = 0; i<nLevel; i++) 
      { 
         OutputDebugString(TEXT("--- ")); 
      } 
 
      OutputDebugString(pIOD->pszName); 
      OutputDebugString(TEXT("\n")); 
 
      if (LDicomIOD::GetChild(pIOD) != NULL) 
      { 
         ShowTree(nLevel + 1, pIOD); 
      } 
 
      pIOD = LDicomIOD::GetNext(pIOD, TRUE); 
   } 
} 
 
L_INT LDicomIOD_GetChildExample() 
{ 
   pDICOMIOD pIOD = LDicomIOD::FindClass(CLASS_CT_IMAGE_STORAGE); 
   ShowTree(0, pIOD); 
 
   return DICOM_SUCCESS; 
}