Determines whether the pointer to the structure is valid.
#include "Ltdic.h"
L_LTDIC_API L_BOOL L_DicomExistsElement(hDS, pElement)
A DICOM handle.
Pointer to a DICOMELEMENT structure.
Value | Meaning |
---|---|
TRUE | pElement is a valid pointer. |
FALSE | pElement is NULL. |
Win32, x64, Linux.
This example checks if the pointer of an element
L_INT DicomExistsElementExample(L_VOID)
{
HDICOMDS hDS;
pDICOMELEMENT pElement;
hDS = L_DicomCreateDS(MAKE_IMAGE_PATH(TEXT("")));
L_DicomInitDS(hDS, CLASS_CT_IMAGE_STORAGE, 0);
pElement = L_DicomInsertElement(hDS, NULL, FALSE, TAG_INSTITUTION_CODE_SEQUENCE,
VR_SQ, TRUE, ELEMENT_INDEX_MAX);
if (pElement == NULL)
{
L_DicomFreeDS(hDS);
return DICOM_ERROR_MEMORY;
}
if (L_DicomExistsElement(hDS, pElement) == FALSE)
MessageBox(NULL, TEXT("The element does not exist in Data Set"), TEXT("Notice"), MB_OK);
L_DicomFreeDS(hDS);
return DICOM_SUCCESS;
}
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