#include "Ltdic.h"
L_DICOM_OFFSET LDicomDS::GetElementOffset(pElement)
Returns the offset of the DICOM element pElement in the DICOM file.
Pointer to a DICOMELEMENT structure within the Data Set.
Value | Meaning |
---|---|
0 | The offset of the element is unknown. |
>0 | The offset of the element in the DICOM file. |
You must load a DICOM file using the flag DS_LOAD_STORE_OFFSETS to use this function. Otherwise, LDicomDS::GetElementOffset will always return 0.
This function is used to return the offset (or physical location) in a DICOM file of any DICOM element.
Required DLLs and Libraries
Win32, x64
This example loads a DICOM file, and finds the physical offset of the TAG_PATIENT_ID in the file.
L_INT LDicomDS_GetElementOffsetExample()
{
L_INT nRet = -1;
LDicomDS *ds = new LDicomDS();
if (ds == NULL)
return nRet;
L_TCHAR *pszFile = MAKE_IMAGE_PATH(TEXT("image2.dcm"));
nRet = ds->LoadDS(pszFile, DS_LOAD_STORE_OFFSETS);
if(nRet != DICOM_SUCCESS)
return nRet;
pDICOMELEMENT pElement = ds->FindFirstElement(NULL, TAG_PATIENT_ID, TRUE);
if (pElement == NULL)
return -1;
// uOffset will contain the file offset of the TAG_PATIENT_ID element
L_UINT64 uOffset = ds->GetElementOffset(pElement);
CString csMsg;
csMsg.Format(TEXT("The offset of the TAG_PATIENT_ID in file '%s' is: 0x%x"), pszFile, uOffset);
OutputDebugString(csMsg);
// Clean up
delete ds;
return nRet;
}
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