| LEADTOOLS DICOM C DLL Help > Function References > L_DicomGetCountModuleIOD | 
#include "Ltdic.h"
L_LTDIC_API L_UINT32 L_DicomGetCountModuleIOD(nClass)
| L_UINT32 nClass; | /* class constant */ | 
Returns the number of modules in the specified class.
| Parameter | Description | 
| nClass | Value that specifies the class. For a list of default values refer to IOD Class Constants. | 
Returns
The number of modules in the specified class.
Comments
The following functions will also help you navigate the IOD Structure as either a tree or a list:
If you evaluate the IOD Structure as a tree, you can also use the following functions to navigate the tree:
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 in a list-box control all modules from a class
L_INT DicomGetCountModuleIODExample(HWND hDlg)
{
   L_UINT32  i;
   L_UINT32  nCount;
   pDICOMIOD pIOD;
   nCount = L_DicomGetCountModuleIOD(CLASS_MR_IMAGE_STORAGE);
   for (i = 0; i < nCount; i++)
   {
      pIOD = L_DicomFindIndexModuleIOD(CLASS_MR_IMAGE_STORAGE, i);
      if (pIOD != NULL)
         SendMessage(hDlg, LB_ADDSTRING, (WPARAM)0, (LPARAM)(LPCTSTR)pIOD->pszName);
   }
   return DICOM_SUCCESS;
}