L_DicomGetPrevContextGroup
#include "ltdic.h"
pDICOMCONTEXTGROUP EXT_FUNCTION L_DicomGetPrevContextGroup(pContextGroup)
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pDICOMCONTEXTGROUP 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.
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Parameter |
Description |
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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. |
Returns
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!NULL |
Pointer to a DICOMCONTEXTGROUP structure that specifies the Context Group in the Context Group Table which immediately precedes the Group specified by pContextGroup. |
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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
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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 |
See Also
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Functions: |
L_DicomGetFirstContextGroup, L_DicomGetLastContextGroup, L_DicomGetNextContextGroup, L_DicomGetCountContextGroup, L_DicomFindIndexContextGroup, L_DicomGetPrevCodedConcept |
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Topics: |
Example
For an example, refer to L_DicomGetFirstContextGroup.