public static extern int AttrGetRGBDoubleColor(IPAttributeStruct *Attrs, double *Red, double *Green, double *Blue);
public static extern IPAttributeStruct *AttrCopyAttributes(IPAttributeStruct *Src);
public static extern IPObjectStruct *AttrGetObjAttrib2(IPAttributeStruct *Attrs, uint AttribNum);
public static extern IPAttributeStruct *AttrCopyOneAttribute(IPAttributeStruct *Src);
public static extern IPObjectStruct *AttrGetObjAttrib(IPAttributeStruct *Attrs, byte *Name);