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Returns a pointer to the Context Group in the Context Group Table that immediately precedes the specified Context Group.
#include "ltdic.h"
L_LTDIC_API pDICOMCONTEXTGROUP L_DicomGetPrevContextGroup(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.
| Value | Meaning |
|---|---|
| !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.) |
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:
Win32, x64, Linux.
For an example, refer to L_DicomGetFirstContextGroup.
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