| LEADTOOLS DICOM C DLL Help > Function References > L_DicomExistsIOD | 
#include "Ltdic.h"
L_LTDIC_API L_BOOL L_DicomExistsIOD(pIOD)
| pDICOMIOD pIOD; | /* pointer to a DICOMIOD structure */ | 
Determines whether the pointer to the structure is valid.
| Parameter | Description | 
| pIOD | Pointer to a DICOMIOD structure. | 
Returns
| TRUE | pIOD is a valid pointer. | 
| FALSE | pIOD is NULL. | 
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_DicomGetFirstIOD, L_DicomGetLastIOD, L_DicomGetPrevIOD, L_DicomGetNextIOD, L_DicomFindIOD, L_DicomFindClassIOD | 
| Topics: | |
| 
 | How to Disable the Automatic Loading of the default DICOM IOD Table | 
Example
This example checks an IOD pointer
L_INT DicomExistsIODExample(L_VOID)
{
   pDICOMIOD pIOD;
   pIOD = L_DicomFindClassIOD(CLASS_CT_IMAGE_STORAGE);
   if (L_DicomExistsIOD(pIOD) == FALSE)
      MessageBox(NULL, TEXT("The IOD does not exist"), TEXT("Notice"), MB_OK);
   return DICOM_SUCCESS;
}