L_ClrSetConversionParams

L_INT ClrSetConversionParamsExample( 
L_UCHAR* pInput, 
L_UCHAR* pOutput, 
L_INT nWidth, 
L_INT nHeight) 
{ 
   L_INT nRet; 
   HANDLE ClrHandle;         /* color Handle       */ 
   CONVERSION_PARAMS convparams; /* conversion options */ 
/* Conversion with options: 
   The conversion will be done with the options specified in the convparams variable*/ 
   /* set the convparams size */ 
   convparams.uStructSize = sizeof(CONVERSION_PARAMS); 
   /* we want to use the built in ICC conversion method and built in conversion */ 
   /* use built in conversion and LEAD ICC Engine*/ 
   convparams.nMethod = USE_BUILTIN | USE_ICC; 
   /* set the active conversion method */ 
   convparams.nActiveMethod = USE_BUILTIN; 
   /* allocate a D50 white point option */ 
   convparams.pWpoint = (LPWHITEPOINT)malloc(sizeof(WHITEPOINT)); 
   /* D50 white point */ 
   convparams.pWpoint->nWhitePoint = CIELAB_D50; 
   /* allocate a cmyk option */ 
   convparams.pCmykParams = (LPCMYK_PARAMS)malloc(sizeof(CMYK_PARAMS)); 
   convparams.pCmykParams->uStructSize = sizeof(CMYK_PARAMS); 
   convparams.pCmykParams->nMask = CMYK_GCR; 
   /* 17.5 % GCR value */ 
   convparams.pCmykParams->nGcr_level = 175; 
   /* initialize the color conversion */ 
   nRet = L_ClrInit(&ClrHandle, CCS_CMYK, CCS_RGB, &convparams); 
   if(nRet != SUCCESS) 
      return nRet; 
   /* convert the image buffer */ 
   nRet = L_ClrConvert(ClrHandle, /* conversion handle */ 
   pInput,        /* input buffer      */ 
   pOutput,       /* output buffer     */ 
   nWidth,        /* pixels width      */ 
   nHeight,       /* pixels height     */ 
   0,             /* 0 bytes align     */ 
   0);            /* 0 bytes align     */ 
   if(nRet != SUCCESS) 
      return nRet; 
   /* change the active method for conversion */ 
   convparams.nMethod = CHANGE_ACTIVE_METHOD; 
   /* switch to ICC conversion method */ 
   convparams.nActiveMethod = USE_ICC; 
   /* update the conversion state */ 
   nRet = L_ClrSetConversionParams(ClrHandle, &convparams); 
   if(nRet != SUCCESS) 
      return nRet; 
   /* convert the image buffer */ 
   nRet = L_ClrConvert(ClrHandle, /* conversion handle */ 
   pInput,        /* input buffer      */ 
   pOutput,       /* output buffer     */ 
   nWidth,        /* pixels width      */ 
   nHeight,       /* pixels height     */ 
   0,             /* 0 bytes align     */ 
   0);            /* 0 bytes align     */ 
   if(nRet != SUCCESS) 
      return nRet; 
   /* free the conversion */ 
   nRet = L_ClrFree (ClrHandle); 
   /* save the image */ 
   /*...*/ 
   free(convparams.pWpoint); 
   free(convparams.pCmykParams); 
   return nRet; 
}