/* call-seq:
 *   mode.bitsPerPixel  -> bpp
 *
 * Video mode pixel depth, in bits per pixels. 
 */
static VALUE VideoMode_GetBitsPerPixel( VALUE self )
{
        sf::VideoMode *object = NULL;
        Data_Get_Struct( self, sf::VideoMode, object );
        return INT2FIX( object->BitsPerPixel );
}