LDicomDS::SetCharValue

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#include "Ltdic.h"

L_BOOL LDicomDS::SetCharValue(pElement, pValue, nCount)

pDICOMELEMENT pElement;	/* pointer to a DICOMELEMENT structure */
L_UCHAR * pValue;	/* pointer to a character */
L_UINT32 nCount;	/* number of values to set */

Sets the character value(s) of a Data Element.

Parameter	Description
pElement	Pointer to a DICOMELEMENT structure within the Data Set.
pValue	Pointer to a character or character string that contains the character value(s) to set. If you want to set multiple values in the Value Field, put all character values in this string and set nCount to the appropriate number of values.
nCount	Value that indicates the number of values to set in the Value Field. If you want to set multiple values in the Value Field, put all the character values in pValue and set nCount to the appropriate number.

Returns

TRUE	The character value(s) were set successfully.
FALSE	Could not set the character value(s) of the Data Element.

Comments

Note: You must allocate the memory for pValue.

If you want to set more than one value in the Value Field of the Data Element, put all the character values in pValue and set nCount to the corresponding number of entries. For example, if you wish to set three character values in the Value Field of the Data Element, put all three characters in pValue and set nCount to three.

If more than one value is stored in the Value Field of the Data Element, you must set all values at the same time.

A character has a standard size of one byte. When multiple characters are in pValue, the first byte of data is the first character, the second byte of data is the second character, etc. Therefore no delimiters are needed.

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

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

See Also

Functions:	LDicomDS::SetBinaryValue, LDicomDS::SetShortValue, LDicomDS::SetLongValue, LDicomDS::SetFloatValue, LDicomDS::SetDoubleValue, LDicomDS::SetStringValue, LDicomDS::SetAgeValue, LDicomDS::SetDateValue, LDicomDS::SetTimeValue, LDicomDS::SetDateTimeValue
Topics:	Working with Data Sets
	How to Disable the Automatic Loading of the default DICOM IOD Table

Example

This example sets the value for an element.

L_VOID SetValue(LDicomDS *pDS, pDICOMELEMENT pElement, L_VOID *pValue, L_UINT32 nCount)
{
   switch (pElement->nVR)
   {
   case VR_OB:    // Other Byte String
   case VR_UN:    // Unknown
      pDS->SetCharValue(pElement, (L_UCHAR *)pValue, nCount);
      break;
   case VR_SS:    // Signed Short
   case VR_US:    // Unsigned Short
   case VR_OW:    // Other Word String
      pDS->SetShortValue(pElement, (L_INT16 *)pValue, nCount);
      break;
   case VR_SL:    // Signed Long
   case VR_IS:    // Integer String
   case VR_UL:    // Unsigned Long
   case VR_AT:    // Attribute Tag
      pDS->SetLongValue(pElement, (L_INT32 *)pValue, nCount);
      break;
   case VR_FL:    // Floating Point Single
      pDS->SetFloatValue(pElement, (L_FLOAT *)pValue, nCount);
      break;
   case VR_FD:    // Floating Point Double
   case VR_DS:    // Decimal String
      pDS->SetDoubleValue(pElement, (L_DOUBLE *)pValue, nCount);
      break;
   case VR_CS:    // Code String
   case VR_SH:    // Short String
   case VR_LO:    // Long String
   case VR_AE:    // Application Entity
   case VR_LT:    // Long Text
   case VR_ST:    // Short Text
   case VR_UI:    // Unique Identifier
   case VR_UT:    // Unlimited Text
   case VR_PN:    // Person Name
      pDS->SetStringValue(pElement, (L_TCHAR *)pValue, nCount, DICOM_CHARACTER_SET_DEFAULT);
      break;
   case VR_AS:    // Age String
      pDS->SetAgeValue(pElement, (pVALUEAGE)pValue, nCount);
      break;
   case VR_DA:    // Date
      pDS->SetDateValue(pElement, (pVALUEDATE)pValue, nCount);
      break;
   case VR_TM:    // Time
      pDS->SetTimeValue(pElement, (pVALUETIME)pValue, nCount);
      break;
   case VR_DT:    // Date Time
      pDS->SetDateTimeValue(pElement, (pVALUEDATETIME)pValue, nCount);
      break;
   }
}
L_INT LDicomDS_SetCharValueExample()
{
   LDicomDS      *pDS;
   pDICOMELEMENT  pElement;
   pDS = new LDicomDS(NULL);
   pDS->InitDS( CLASS_CR_IMAGE_STORAGE, 0);
   pElement = pDS->FindFirstElement(NULL, TAG_IMAGE_TYPE, FALSE);
   if (pElement != NULL)
   {
      SetValue(pDS, pElement, TEXT("ORIGINAL\0PRIMARY"), 2);
   }
   delete pDS;
   return DICOM_SUCCESS;
}