public static void SetParamValue(aepParam param, AEFxParam v)
        {
            var t = v.GetType();

            if (t == typeof(AEFxBoolParam))
            {
                aepSetParamValue(param, ref ((AEFxBoolParam)v).value);
            }
            else if (t == typeof(AEFxIntParam))
            {
                aepSetParamValue(param, ref ((AEFxIntParam)v).value);
            }
            else if (t == typeof(AEFxDoubleParam))
            {
                aepSetParamValue(param, ref ((AEFxDoubleParam)v).value);
            }
            else if (t == typeof(AEFxPoint2DParam))
            {
                aepSetParamValue(param, ref ((AEFxPoint2DParam)v).value);
            }
            else if (t == typeof(AEFxPoint3DParam))
            {
                aepSetParamValue(param, ref ((AEFxPoint3DParam)v).value);
            }
            else if (t == typeof(AEFxColorParam))
            {
                aepSetParamValue(param, ref ((AEFxColorParam)v).value);
            }
        }
        public static AEFxParam CreateAEFxParam(aepParam param)
        {
            var info = default(aepParamInfo);

            aepGetParamInfo(param, ref info);

            AEFxParam ret = null;

            switch (info.type)
            {
            case aepParamType.Bool: ret = new AEFxBoolParam(param); break;

            case aepParamType.Int: ret = new AEFxIntParam(param); break;

            case aepParamType.Double: ret = new AEFxDoubleParam(param); break;

            case aepParamType.Point2D: ret = new AEFxPoint2DParam(param); break;

            case aepParamType.Point3D: ret = new AEFxPoint3DParam(param); break;

            case aepParamType.Color: ret = new AEFxColorParam(param); break;

            default: ret = new AEFxParam(param); break;
            }
            return(ret);
        }
 [DllImport("AfterEffectsPlugin")] public static extern void         aepSetParamValue(aepParam param, IntPtr value);
 [DllImport("AfterEffectsPlugin")] public static extern void         aepSetParamValue(aepParam param, ref aepColorParamValue value);
 [DllImport("AfterEffectsPlugin")] public static extern void         aepGetParamInfo(aepParam param, ref aepParamInfo dst);