L_DicomGetDateRangeValue

#include "Ltdic.h"

L_LTDIC_API L_INT L_DicomGetDateRangeValue(hDS, pElement, nIndex, pValue)

Fills a VALUEDATERANGE structure with Date Range information stored in the Value Field of the specified element.

Parameters

HDICOMDS hDS

A DICOM handle.

pDICOMELEMENT pElement

Pointer to a DICOMELEMENT structure within the Data Set.

L_UINT32 nIndex

Index value that indicates which value to retrieve when more than one value is stored in the Value Field. The index is zero-based.

pVALUEDATERANGE pValue

Pointer to the VALUEDATERANGE structure to be filled. For more information, see VALUEDATERANGE structure.

Returns

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

Comments

If you have more than one value stored in the Value Field of the specified Data Element, you can retrieve one or more of those elements. For example, if the Value Field of the specified Data Element contains three Date values, and you are only interested in retrieving the last two Date values, set nIndex to 1 and nCount to 2. This tells the function to retrieve the Date values starting at position 1 (the index is zero based) and retrieve two values. Therefore you would retrieve the values in positions 1 and 2 in the Value Field.

This function can be called only if the Value Representation of the Data Element is VR_DA. For more information about Value Representations, refer to Default Value Representation Table.

Required DLLs and Libraries

Platforms

Win32, x64, Linux.

See Also

Functions

Topics

Example

This example gets the range of values for an element. 

L_VOID ShowRangeValue(HDICOMDS hDS, pDICOMELEMENT pElement) 
{ 
   L_INT32              i; 
   L_INT32              nCount; 
   L_TCHAR              szText[256]; 
   VALUEDATERANGE       DateRange; 
   VALUETIMERANGE       TimeRange; 
   VALUEDATETIMERANGE   DateTimeRange; 
   L_INT                nRet; 
   nCount = L_DicomGetCountValue(hDS, pElement); 
   if (((pElement->nLength == ELEMENT_LENGTH_MAX)) ||  
      (pElement->nLength > 1024) ||  
      (nCount == 0)) 
   { 
      return; 
   } 
   switch (pElement->nVR) 
   { 
   case VR_DA:    // Date Range 
      for (i = 0; i < nCount; i++) 
      { 
         nRet = L_DicomGetDateRangeValue(hDS, pElement, i, &DateRange); 
         if(nRet == DICOM_SUCCESS) 
         { 
            wsprintf(szText, TEXT("Type: %ld - Date1: %02u%02u%u - Date2: %02u%02u%u"), 
                     DateRange.nFlags, 
                     DateRange.Date1.nMonth, DateRange.Date1.nDay, DateRange.Date1.nYear, 
                     DateRange.Date2.nMonth, DateRange.Date2.nDay, DateRange.Date2.nYear); 
            MessageBox(NULL, szText, TEXT("Value"), MB_OK); 
         } 
      } 
      break; 
   case VR_TM:    // Time Range 
      for (i = 0; i < nCount; i++) 
      { 
         nRet = L_DicomGetTimeRangeValue(hDS, pElement, i, &TimeRange); 
         if(nRet == DICOM_SUCCESS) 
         { 
            wsprintf(szText, TEXT("Type: %ld - Time1: %02u:%02u:%u.%lu - Time2: %02u:%02u:%u.%lu"), 
                     TimeRange.nFlags, 
                     TimeRange.Time1.nHours, TimeRange.Time1.nMinutes, TimeRange.Time1.nSeconds, TimeRange.Time1.nFractions, 
                     TimeRange.Time2.nHours, TimeRange.Time2.nMinutes, TimeRange.Time2.nSeconds, TimeRange.Time2.nFractions); 
            MessageBox(NULL, szText, TEXT("Value"), MB_OK); 
         } 
      } 
      break; 
   case VR_DT:    // Date Time 
      for (i = 0; i < nCount; i++) 
      { 
         nRet = L_DicomGetDateTimeRangeValue(hDS, pElement, i, &DateTimeRange); 
         if(nRet == DICOM_SUCCESS) 
         { 
            wsprintf(szText, TEXT("Type: %ld - DateTime1: %02u%02u%u  %02u:%02u:%u.%lu&%lu - DateTime2: %02u%02u%u  %02u:%02u:%u.%lu&%lu"),  
                     DateTimeRange.nFlags, 
            DateTimeRange.DateTime1.nMonth, DateTimeRange.DateTime1.nDay, DateTimeRange.DateTime1.nYear, 
            DateTimeRange.DateTime1.nHours, DateTimeRange.DateTime1.nMinutes, DateTimeRange.DateTime1.nSeconds, DateTimeRange.DateTime1.nFractions, DateTimeRange.DateTime1.nOffset, 
            DateTimeRange.DateTime2.nMonth, DateTimeRange.DateTime2.nDay, DateTimeRange.DateTime2.nYear, 
            DateTimeRange.DateTime2.nHours, DateTimeRange.DateTime2.nMinutes, DateTimeRange.DateTime2.nSeconds, DateTimeRange.DateTime2.nFractions, DateTimeRange.DateTime2.nOffset); 
            MessageBox(NULL, szText, TEXT("Value"), MB_OK); 
         } 
      } 
      break; 
   default: 
      wsprintf(szText, TEXT("Element is not a range value element!")); 
      MessageBox(NULL, szText, TEXT("Value"), MB_OK); 
      break; 
   } 
   L_DicomFreeValue(hDS, pElement); 
} 
 
L_INT LDicomDS_GetDateRangeValueExample() 
{ 
   L_INT nRet; 
   HDICOMDS hDS; 
   pDICOMELEMENT  pElement; 
   hDS = L_DicomCreateDS(NULL); 
   nRet = L_DicomLoadDS(hDS, MAKE_IMAGE_PATH(TEXT("Image1.dcm")), 0);  
   if(nRet != DICOM_SUCCESS) 
      return nRet; 
   pElement = L_DicomFindFirstElement(hDS, NULL, TAG_STUDY_DATE, FALSE); 
   L_DicomDeleteElement(hDS, pElement); 
   pElement = L_DicomFindFirstElement(hDS, NULL, TAG_STUDY_TIME, FALSE); 
   L_DicomDeleteElement(hDS, pElement); 
   pElement = L_DicomFindFirstElement(hDS,NULL, TAG_CONTRIBUTION_DATETIME, FALSE); 
   L_DicomDeleteElement(hDS,pElement); 
   pElement = L_DicomInsertElement(hDS, NULL, FALSE, TAG_STUDY_DATE, VR_DA, FALSE, 0); 
   VALUEDATERANGE DateRange; 
   DateRange.nFlags = VALUE_RANGE_BOTH; 
   DateRange.Date1.nDay = 1; 
   DateRange.Date1.nMonth = 2; 
   DateRange.Date1.nYear = 2005; 
   DateRange.Date2.nDay = 10; 
   DateRange.Date2.nMonth = 25; 
   DateRange.Date2.nYear = 2005; 
   L_DicomSetDateRangeValue(hDS, pElement, &DateRange, 1); 
   ShowRangeValue(hDS, pElement); 
   pElement = L_DicomInsertElement(hDS, NULL, FALSE, TAG_STUDY_TIME, VR_TM, FALSE, 0); 
   VALUETIMERANGE TimeRange; 
   TimeRange.nFlags = VALUE_RANGE_BOTH; 
   TimeRange.Time1.nHours = 12; 
   TimeRange.Time1.nMinutes = 0; 
   TimeRange.Time1.nSeconds = 0; 
   TimeRange.Time1.nFractions = 0; 
   TimeRange.Time2.nHours = 24; 
   TimeRange.Time2.nMinutes = 30; 
   TimeRange.Time2.nSeconds = 0; 
   TimeRange.Time2.nFractions = 0; 
   L_DicomSetTimeRangeValue(hDS, pElement, &TimeRange, 1); 
   ShowRangeValue(hDS, pElement); 
   pElement = L_DicomInsertElement(hDS, NULL, FALSE, TAG_CONTRIBUTION_DATETIME, VR_DT, FALSE, 0); 
   VALUEDATETIMERANGE DateTimeRange; 
   DateTimeRange.nFlags = VALUE_RANGE_BOTH; 
   DateTimeRange.DateTime1.nDay = 1; 
   DateTimeRange.DateTime1.nMonth = 2; 
   DateTimeRange.DateTime1.nYear = 2005; 
   DateTimeRange.DateTime1.nHours = 12; 
   DateTimeRange.DateTime1.nMinutes = 0; 
   DateTimeRange.DateTime1.nSeconds = 0; 
   DateTimeRange.DateTime1.nFractions = 0; 
   DateTimeRange.DateTime1.nOffset = 0; 
   DateTimeRange.DateTime2.nDay = 25; 
   DateTimeRange.DateTime2.nMonth = 12; 
   DateTimeRange.DateTime2.nYear = 2005; 
   DateTimeRange.DateTime2.nHours = 12; 
   DateTimeRange.DateTime2.nMinutes = 0; 
   DateTimeRange.DateTime2.nSeconds = 0; 
   DateTimeRange.DateTime2.nFractions = 0; 
   DateTimeRange.DateTime2.nOffset = 0; 
   L_DicomSetDateTimeRangeValue(hDS, pElement, &DateTimeRange, 1); 
   ShowRangeValue(hDS, pElement); 
   nRet = L_DicomSaveDS(hDS, MAKE_IMAGE_PATH(TEXT("test.dcm")), 0); 
   L_DicomFreeDS(hDS); 
   return DICOM_SUCCESS; 
}

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