AT_ERRCOUNT ACCUAPI IG_colorspace_conversion_apply_to_raster(
        HIGCSCONVERTER hCSConverter,
        const void* sourceRaster,
        void* resultRaster,
        AT_INT rasterLength
);

/* Use the color space converter to convert a CMYK raster 
to 24-bit RGB.  Then fill a test image with it and save file. */AT_ERRCOUNT nErrcount;  /*
Number of errors on stack */
HIGCSCONVERTER hCSConv; /* Color space converter handle */
HIGEAR hImage;          /* HIGEAR handle of image */
AT_INT depthsCMYK[] = { 8, 8, 8, 8 }; /* CMYK channel depths */
AT_INT depthsRGB[] = { 8, 8, 8 }; /* RGB channel depths */
HIGDIBINFO hDIBCMYK;    /* CMYK DIB info handle */
HIGDIBINFO hDIBRGB;     /* RGB DIB info handle */
AT_DIMENSION x, y, w = 64, h = 64; /* Test image dimensions */
AT_DIMENSION rasterSizeCMYK; /* CMYK raster size */
AT_DIMENSION rasterSizeRGB;  /* RGB raster size */
LPAT_PIXEL lpRasterCMYK;     /* CMYK raster data */
LPAT_PIXEL lpRasterRGB;      /* RGB raster data */
/* Create CMYK test raster (solid yellow) */
nErrcount = IG_DIB_info_create(&hDIBCMYK, w, h, 
    IG_COLOR_SPACE_ID_CMYK, 4, depthsCMYK);
rasterSizeCMYK = IG_DIB_info_raster_size_get(hDIBCMYK);
lpRasterCMYK = (LPAT_PIXEL) calloc(rasterSizeCMYK, 1);
for (x = 0; x <= rasterSizeCMYK - 4; x += 4)
    lpRasterCMYK[x] = 255; /* Yellow */
/* Create RGB test image */
nErrcount = IG_DIB_info_create(&hDIBRGB, w, h, 
    IG_COLOR_SPACE_ID_RGB, 3, depthsRGB);
rasterSizeRGB = IG_DIB_info_raster_size_get(hDIBRGB);
lpRasterRGB = (LPAT_PIXEL) malloc(rasterSizeRGB);
nErrcount = IG_image_create(hDIBRGB, &hImage);
/* Convert CMYK test raster to RGB raster */
nErrcount = IG_colorspace_conversion_create_from_dib_info(
    hDIBCMYK, IG_COLOR_SPACE_ID_RGB, depthsRGB, 3, 
    NULL, &hCSConv);
nErrcount = IG_colorspace_conversion_apply_to_raster(
    hCSConv, lpRasterCMYK, lpRasterRGB, w);
nErrcount = IG_colorspace_conversion_destroy(hCSConv);
/* Fill test image with converted raster */
for (y = 0; y < h; y++)
    nErrcount = IG_DIB_raster_set(hImage, y, lpRasterRGB, 
        IG_PIXEL_UNPACKED);
/* Save test image to a file and clean up */
nErrcount = IG_save_file(hImage, "test.bmp", IG_SAVE_BMP_UNCOMP);
nErrcount = IG_DIB_info_delete(hDIBRGB);
nErrcount = IG_DIB_info_delete(hDIBCMYK);
nErrcount = IG_image_delete(hImage);
free(lpRasterCMYK);
free(lpRasterRGB);