| LEADTOOLS DICOM C DLL Help > Function References > L_DicomGetPreamble | 
#include "Ltdic.h"
L_LTDIC_API L_VOID L_DicomGetPreamble(hDS, pPreamble, nLength)
| HDICOMDS hDS; | /* a DICOM handle */ | 
| L_UCHAR * pPreamble; | /* character string */ | 
| L_UINT16 nLength; | /* length of pPreamble */ | 
Gets the contents of the files preamble.
| Parameter | Description | 
| hDS | A DICOM handle. | 
| pPreamble | Character string to be updated with the contents of the preamble. | 
| nLength | Length of pPreamble, in bytes. The maximum length is DS_PREAMBLE_LENGTH, which is defined as 128. | 
Returns
None.
Comments
To set the Preamble use L_DicomSetPreamble.
If the value specified in nLength is >= DS_PREAMBLE_LENGTH, then pPreamble will be updated with the entire Preamble. If nLength is < DS_PREAMBLE_LENGTH, then pPreamble will be updated with a truncated version of the Preamble with length nLength.
Required DLLs and Libraries
| For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application | 
Win32, x64, Linux.
See Also
| Functions: | |
| Topics: | 
Example
This example gets the default preamble
L_INT DicomGetPreambleExample(L_VOID)
{
   HDICOMDS hDS;
   L_UCHAR   szPreamble[DS_PREAMBLE_LENGTH];
   hDS = L_DicomCreateDS(NULL);
   L_DicomGetPreamble(hDS, szPreamble, sizeof(szPreamble));
   L_DicomFreeDS(hDS);
   return DICOM_SUCCESS;
}