L_DicomDelPresentation

#include "ltdic.h"

L_VOID EXT_FUNCTION L_DicomDelPresentation(hPDU, nID)

HDICOMPDU hPDU;	/* a DICOM Associate handle */
L_UCHAR nID;	/* presentation ID */

Deletes a presentation context in the specified DICOM Associate.

Parameter	Description
hPDU	A DICOM Associate handle.
nID	Presentation ID. The presentation ID provides information about both the class type of the data and the transfer syntax to use when transferring the data.

Returns

None.

Comments

A DICOM Associate can have multiple presentation contexts. Any of these can be deleted by passing the appropriate value for nID.

To determine the number of presentation contexts a DICOM Associate has, call L_DicomGetPresentationCount.

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

See Also

Functions:	L_DicomAddPresentation, L_DicomSetPresentation, L_DicomGetPresentation, L_DicomGetPresentationCount
Topics:	Working with DICOM Associate Connections

Example

L_VOID Test(HDICOMPDU hPDU)
{
   L_UCHAR i;
   L_UCHAR nID;
   L_UCHAR iMaxID;
   L_CHAR szMsg[800];
   L_CHAR szTemp[800];

   /* get current ID's and display them */
   lstrcpy(szMsg, "Presentation Contexts");
   iMaxID = 0;
   for(i = 0; i < L_DicomGetPresentationCount(hPDU); i++)
   {
      nID = L_DicomGetPresentation(hPDU, i);
      wsprintf(szTemp, "\n[%d]", nID);
      lstrcat(szMsg, szTemp);

      //store the highest nID
      if(nID > iMaxID)
         iMaxID = nID;
   }
   MessageBox(NULL, szMsg, "Test", MB_OK);

   /* nID must be unique and odd number */
   nID = iMaxID + 2;

   /* change the some ids and then display them all */
   for(i = 0; i<L_DicomGetPresentationCount(hPDU); i++)
   {
      L_DicomSetPresentation(hPDU, i, nID);
      nID += 2;
   }

   lstrcpy(szMsg, "Presentation Contexts--new IDs");
   for(i = 0; i<L_DicomGetPresentationCount(hPDU); i++)
   {
      nID = L_DicomGetPresentation(hPDU, i);
      wsprintf(szTemp, "\n[%d]", nID);
      lstrcat(szMsg, szTemp);
   }
   MessageBox(NULL, szMsg, "Test", MB_OK);

   /* add a presentation context */
   lstrcpy(szMsg, "Presentation Contexts--Added 1");
   L_DicomAddPresentation(hPDU, 1, 1, UID_CT_IMAGE_STORAGE);
   for(i = 0; i<L_DicomGetPresentationCount(hPDU); i++)
   {
      nID = L_DicomGetPresentation(hPDU, i);
      wsprintf(szTemp, "\n[%d]", nID);
      lstrcat(szMsg, szTemp);
   }
   MessageBox(NULL, szMsg, "Test", MB_OK);

   /* delete the one we added */
   lstrcpy(szMsg, "Presentation Contexts--Deleted 1");
   L_DicomDelPresentation(hPDU, 1);
   for(i = 0; i<L_DicomGetPresentationCount(hPDU); i++)
   {
      nID = L_DicomGetPresentation(hPDU, i);
      wsprintf(szTemp, "\n[%d]", nID);
      lstrcat(szMsg, szTemp);
   }
   MessageBox(NULL, szMsg, "Test", MB_OK);
}