L_DicomGetPrevContextGroup

#include "ltdic.h"

L_LTDIC_API pDICOMCONTEXTGROUP L_DicomGetPrevContextGroup(pContextGroup)

pointer to a Context Group

Returns a pointer to the Context Group in the Context Group Table that immediately precedes the specified Context Group.

Parameter	Description
pContextGroup	Pointer to a DICOMCONTEXTGROUP structure that specifies a Context Group in the Context Group Table. The function returns a pointer to the structure that specifies the Group which immediately precedes this Group, if there is one.

!NULL	Pointer to a DICOMCONTEXTGROUP structure that specifies the Context Group in the Context Group Table which immediately precedes the Group specified by pContextGroup.
NULL	No Context Group precedes the one specified by pContextGroup. (pContextGroup is the first Context Group in the table.)

Comments

Along with this function, the following functions can be used to maneuver through the Context Groups in the Context Group Table:

You can also use the L_DicomGetCountContextGroup and L_DicomFindIndexContextGroup functions to enumerate the Context Groups in the table.

To investigate the Coded Concepts of a Context Group, use the following functions:

Required DLLs and Libraries

LTDIC

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.

Help Version 19.0.2017.10.27

LEADTOOLS DICOM C API Help

Functions:	L_DicomGetFirstContextGroup, L_DicomGetLastContextGroup, L_DicomGetNextContextGroup, L_DicomGetCountContextGroup, L_DicomFindIndexContextGroup, L_DicomGetPrevCodedConcept
Topics:	Working with Context Groups
	How to Disable the Automatic Loading of the default DICOM Context Group Table