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L_DicomCreateGraphicObject

Summary

Creates a new graphic annotation object.

Syntax

#include "ltdic.h"

L_LTDIC_API L_UINT16 L_DicomCreateGraphicObject(hDS, pGraphicAnnSQItem, pGraphicObject, bCheckLayer)

Parameters

HDICOMDS hDS

A DICOM handle.

pDICOMELEMENT pGraphicAnnSQItem

Pointer to an item element under the "Graphic Annotation Sequence" (0070,0001) in the "Graphic Annotation Module".

pDICOMGRAPHICOBJECT pGraphicObject

Pointer to the graphic object attributes structure.

L_BOOL bCheckLayer

Flag that indicates whether to verify that the layer (to which the graphic object will be added) exists or not. Possible values are:

Value	Meaning
TRUE	Check if the layer exists before adding the object. If it does not exist, then return an error.
FALSE	Add the new object without checking the existence of the layer.

Returns

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

Comments

Before calling this function, initialize pDICOMGRAPHICOBJECT->uStructSize to be sizeof(DICOMGRAPHICOBJECT) and initialize all the structure members.

When the parameter bCheckLayer is set to TRUE, then this function checks if the layer specified in the member variable pszLayerName exists or not. If it does not exist, an error will be returned.

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

Platforms

Win32, x64, Linux.

Example

L_INT DicomCreateGraphicObjectExample(HDICOMDS hPresStateDS) 
{ 
   DICOMGRAPHICOBJECT GraphicObject = {0}; 
   L_UINT   nCount = 5; 
   L_UINT16 nRet; 
 
   memset(&GraphicObject, 0, sizeof(DICOMGRAPHICOBJECT)); 
 
   GraphicObject.pAnnPoints = (pDICOMANNPOINT) malloc(sizeof(DICOMANNPOINT) * nCount);   
   if(GraphicObject.pAnnPoints == NULL) 
      return ERROR_NOT_ENOUGH_MEMORY; 
 
   GraphicObject.pAnnPoints [0].fX = (L_FLOAT)480.00; 
   GraphicObject.pAnnPoints [0].fY = (L_FLOAT)226.00; 
   GraphicObject.pAnnPoints [1].fX = (L_FLOAT)480.00; 
   GraphicObject.pAnnPoints [1].fY = (L_FLOAT)418.00; 
   GraphicObject.pAnnPoints [2].fX = (L_FLOAT)488.00; 
   GraphicObject.pAnnPoints [2].fY = (L_FLOAT)418.00; 
   GraphicObject.pAnnPoints [3].fX = (L_FLOAT)488.00; 
   GraphicObject.pAnnPoints [3].fY = (L_FLOAT)226.00;  
   GraphicObject.pAnnPoints [4].fX = (L_FLOAT)480.00; 
   GraphicObject.pAnnPoints [4].fY = (L_FLOAT)226.00;  
 
   GraphicObject.bFilled = TRUE; 
   GraphicObject.uType = DICANN_TYPE_POLYLINE; 
   GraphicObject.pszLayerName = TEXT("First Layer"); 
   GraphicObject.nPointCount  = (L_UINT16)nCount; 
   GraphicObject.uUnits = DICANN_UNIT_PIXEL;    
   GraphicObject.uStructSize = sizeof(DICOMGRAPHICOBJECT); 
 
   nRet = L_DicomCreateGraphicObject(  hPresStateDS, 
                                       L_DicomFindFirstGraphicAnnSQItem(hPresStateDS),  
                                       &GraphicObject, 
                                       FALSE); 
   if (nRet == DICOM_SUCCESS) 
   { 
      MessageBox( NULL, 
                  TEXT("Object has been successfully created."), 
                  TEXT("Note"), 
                  MB_OK); 
   } 
 
   if (GraphicObject.pAnnPoints) 
      free(GraphicObject.pAnnPoints); 
   return nRet; 
}