L_DicomSetPaletteColorLUTData

#define SET_SIZE(p) (p)->uStructSize = sizeof(*(p)); 
 
L_INT DicomSetPaletteColorLUTDataExample(HDICOMDS hDicomDS) 
{ 
   L_INT                   nLUTIndex; 
   L_UINT16                uRet; 
   L_UINT16                *pRedLUTData               = NULL; 
   L_UINT16                *pGreenLUTData             = NULL; 
   L_UINT16                *pBlueLUTData              = NULL; 
   DICOMPALCOLORLUTATTRIBS PaletteColorLUTAttributes  = {0} ; 
 
   // Remember  to set the size for each structure 
   SET_SIZE(&PaletteColorLUTAttributes); 
   SET_SIZE(&(PaletteColorLUTAttributes.RedLUTDescriptor)); 
   SET_SIZE(&(PaletteColorLUTAttributes.GreenLUTDescriptor)); 
   SET_SIZE(&(PaletteColorLUTAttributes.BlueLUTDescriptor)); 
 
   // Initialize Red Palette Color Lookup Table Descriptor (0028,1101) 
   PaletteColorLUTAttributes.RedLUTDescriptor.nFirstStoredPixelValueMapped    = 0; 
   PaletteColorLUTAttributes.RedLUTDescriptor.uEntryBits                      = 16; 
   PaletteColorLUTAttributes.RedLUTDescriptor.uNumberOfEntries                = 0x10000; 
 
   // Initialize Green Palette Color Lookup Table Descriptor (0028,1102) 
   PaletteColorLUTAttributes.GreenLUTDescriptor.nFirstStoredPixelValueMapped  = 0; 
   PaletteColorLUTAttributes.GreenLUTDescriptor.uEntryBits                    = 16; 
   PaletteColorLUTAttributes.GreenLUTDescriptor.uNumberOfEntries              = 0x10000; 
 
   // Initialize Blue Palette Color Lookup Table Descriptor (0028,1103) 
   PaletteColorLUTAttributes.BlueLUTDescriptor.nFirstStoredPixelValueMapped   = 0; 
   PaletteColorLUTAttributes.BlueLUTDescriptor.uEntryBits                     = 16; 
   PaletteColorLUTAttributes.BlueLUTDescriptor.uNumberOfEntries               = 0x10000; 
 
   // Allocate a buffer to hold Red Palette Color Lookup Table Data 
   pRedLUTData = (L_UINT16*)malloc(0x10000 * sizeof(L_UINT16)); 
   if(!pRedLUTData) 
      return DICOM_ERROR_MEMORY; 
 
   // Allocate a buffer to hold Green Palette Color Lookup Table Data 
   pGreenLUTData = (L_UINT16*)malloc(0x10000 * sizeof(L_UINT16)); 
   if(!pGreenLUTData) 
   { 
      free(pRedLUTData); 
      return DICOM_ERROR_MEMORY; 
   } 
 
   // Allocate a buffer to hold Blue Palette Color Lookup Table Data 
   pBlueLUTData = (L_UINT16*)malloc(0x10000 * sizeof(L_UINT16)); 
   if(!pBlueLUTData) 
   { 
      free(pRedLUTData); 
      free(pGreenLUTData); 
      return DICOM_ERROR_MEMORY; 
   }    
 
   for(nLUTIndex = 0; nLUTIndex <= 0xFFFF; nLUTIndex++) 
   { 
      pRedLUTData    [nLUTIndex] = (L_UINT16)(nLUTIndex); 
      pGreenLUTData  [nLUTIndex] = (L_UINT16)(nLUTIndex/2); 
      pBlueLUTData   [nLUTIndex] = (L_UINT16)(nLUTIndex/4);    
   } 
 
   // Delete all the elements that describe the "Palette Color Lookup Table". 
   uRet = L_DicomDeletePaletteColorLUT(hDicomDS,0); 
   if(uRet != DICOM_SUCCESS) 
   { 
      free(pRedLUTData); 
      free(pGreenLUTData); 
      free(pBlueLUTData); 
      return uRet; 
   } 
 
   // Set the new "Palette Color Lookup Table" attributes 
   uRet = L_DicomSetPaletteColorLUTAttributes(hDicomDS,&PaletteColorLUTAttributes, 0); 
   if(uRet != DICOM_SUCCESS) 
   { 
      free(pRedLUTData); 
      free(pGreenLUTData); 
      free(pBlueLUTData); 
      return uRet; 
   } 
 
   // Set Red Palette Color Lookup Table Data 
   uRet = L_DicomSetPaletteColorLUTData(hDicomDS,pRedLUTData,0x10000,DICOMPALETTECOLORLUTTYPE_RED,0); 
   if(uRet != DICOM_SUCCESS) 
   { 
      free(pRedLUTData); 
      free(pGreenLUTData); 
      free(pBlueLUTData); 
      return uRet; 
   } 
 
   // Set Green Palette Color Lookup Table Data 
   uRet = L_DicomSetPaletteColorLUTData(hDicomDS,pGreenLUTData,0x10000,DICOMPALETTECOLORLUTTYPE_GREEN,0); 
   if(uRet != DICOM_SUCCESS) 
   { 
      free(pRedLUTData); 
      free(pGreenLUTData); 
      free(pBlueLUTData); 
      return uRet; 
   } 
 
   // Set Blue Palette Color Lookup Table Data 
   uRet = L_DicomSetPaletteColorLUTData(hDicomDS,pBlueLUTData,0x10000,DICOMPALETTECOLORLUTTYPE_BLUE,0); 
 
   free(pRedLUTData); 
   free(pGreenLUTData); 
   free(pBlueLUTData); 
   return uRet; 
}