This function returns the number of extra channels in the specified color space.

Declaration:

AT_UINT ACCUAPI IG_util_colorspace_extra_count_get(
        enumIGColorSpaceIDs colorSpace,
        AT_UINT totalChannelCount
);

Arguments:

Return Value:

Returns the number of extra channels.

Supported Raster Image Formats:

This function does not process image pixels.

Example:

enumIGColorSpaceIDs colorSpace = IG_COLOR_SPACE_ID_RGBAEx;
AT_UINT nExtra;         /* Number of extra channels */
nExtra = IG_util_colorspace_extra_count_get(colorSpace);
/* nExtra is 1 */

Remarks:

You must specify the total number of channels in the color space in order for this to be calculated.