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L_DicomAnnDelete

Summary

Deletes a page from an annotation file, deletes the entire annotation file, or deletes all annotation files stored in a DICOM data set.

Syntax

#include "ltdic.h"

L_LTDIC_API L_UINT16 L_DicomAnnDelete (hDS, nIndex, nPage)

Parameters

HDICOMDS hDS

A DICOM handle.

L_INT nIndex

Index into an array of annotation files stored in the DICOM data set. Each DICOM data set can store up to 256 annotation files. This is a zero-based index. Valid values are between 0 and 255. Pass 1 to delete ALL annotation files and the private creator data element.

L_INT nPage

Number of the page to delete. The page number is 1-based. Therefore, the first page is page 1, the second page is page 2, etc. Pass 1 to delete the entire file specified by the nIndex parameter.

Returns

Value	Meaning
DICOM_SUCCESS	The function was successful.
>0	An error occurred. Refer to Return Codes.

Comments

LEAD Annotation files can be saved as private data in a DICOM data set (LEAD native format or binary encoded format). There can be up to 256 private data tags for LEAD annotation files. L_DicomAnnDelete can delete a page from an annotation file, delete the entire annotation file, or delete all annotation files in a DICOM data set.

To delete the third page of the annotation file at index 1:

HDICOMDS hDS;   
hDS = L_DicomCreateDS(NULL);   
L_DicomLoadDS(hDS, TEXT("d:\\work\\images\\a.dic"), 0);    
L_DicomAnnDelete(hDS, 1, 3);   
L_DicomFreeDS(hDS);

To delete the annotation file at index 1

HDICOMDS hDS;   
hDS = L_DicomCreateDS(NULL);   
L_DicomLoadDS(hDS, TEXT("d:\\work\\images\\a.dic"), 0);   
L_DicomAnnDelete(hDS, 1, -1);   
L_DicomFreeDS(hDS);

To delete all annotation files and the private creator data element

HDICOMDS hDS;   
hDS = L_DicomCreateDS(NULL);   
L_DicomLoadDS(hDS, TEXT("d:\\work\\images\\a.dic"), 0);   
L_DicomAnnDelete(hDS, -1, 0);   
L_DicomFreeDS(hDS);

Please note that both the DICOM capabilities and the DOCUMENT capabilities must be unlocked in order to work with DICOM annotations. For more information on unlocking these capabilities, refer to L_SetLicenseFile.