/// <summary>
/// Initializes a new instance for the given FITAG that contains
/// a palette.
/// </summary>
/// <param name="tag">The tag containing the palette.</param>
/// <exception cref="ArgumentNullException"><paramref name="tag"/> is null.</exception>
/// <exception cref="ArgumentException"><paramref name="tag"/> is not
/// <see cref="FREE_IMAGE_MDTYPE.FIDT_PALETTE"/>.</exception>
public Palette(FITAG tag)
: base(FreeImage.GetTagValue(tag), (int)FreeImage.GetTagCount(tag))
{
if (FreeImage.GetTagType(tag) != FREE_IMAGE_MDTYPE.FIDT_PALETTE)
{
throw new ArgumentException("tag");
}
}