public static extern int agnnodes(GraphHandle graph);
public static extern int gvRenderJobs(SafeContextHandle gvc, GraphHandle g);
public static extern int gvFreeLayout(SafeContextHandle gvc, GraphHandle g);
public static extern int gvRender(SafeContextHandle gvc, GraphHandle g, [MarshalAs(UnmanagedType.LPStr)] string format, IntPtr FILE_out);
public static extern unsafe int gvRenderContext(SafeContextHandle gvc, GraphHandle g, [MarshalAs(UnmanagedType.LPStr)] string format, void *context);
public static extern string agxget(GraphHandle component, int unk2);
public static extern int gvLayoutJobs(SafeContextHandle gvc, GraphHandle g);
public static extern NodeHandle aglstnode(GraphHandle graph);
public static extern NodeHandle agprvnode(GraphHandle graph, NodeHandle node);
public static extern int agcontains(GraphHandle graph, EdgeHandle component);
public static extern NodeHandle agfindnode(GraphHandle graph, [MarshalAs(UnmanagedType.LPStr)] string name);
public static extern void agdelete(GraphHandle graph, EdgeHandle component);
public static extern void aginsert(GraphHandle graph, EdgeHandle component);
public static extern int agnedges(GraphHandle graph);
public static extern SymbolHandle agprvattr(GraphHandle component, SymbolHandle attribute);
public static extern EdgeHandle agfindedge(GraphHandle graph, NodeHandle tail, NodeHandle head);
public static extern string agget(GraphHandle component, [MarshalAs(UnmanagedType.LPStr)] string unk2);
public static extern EdgeHandle agnxtedge(GraphHandle graph, EdgeHandle edge, NodeHandle node);
public static extern int gvLayout(SafeContextHandle gvc, GraphHandle g, [MarshalAs(UnmanagedType.LPStr)] string engine);
public static extern EdgeHandle agfstout(GraphHandle graph, NodeHandle node);
public static extern void attach_attrs(GraphHandle g);
public static extern EdgeHandle agnxtout(GraphHandle graph, EdgeHandle edge);
public static extern int gvRenderFilename(SafeContextHandle gvc, GraphHandle g, [MarshalAs(UnmanagedType.LPStr)] string format, [MarshalAs(UnmanagedType.LPStr)] string filename);
public static extern SymbolHandle agedgeattr(GraphHandle edge, [MarshalAs(UnmanagedType.LPStr)] string name, [MarshalAs(UnmanagedType.LPStr)] string value);
public static extern unsafe int gvRenderData(SafeContextHandle gvc, GraphHandle g, [MarshalAs(UnmanagedType.LPStr)] string format, byte **result, uint *length);
public static extern SymbolHandle agfindattr(GraphHandle component, [MarshalAs(UnmanagedType.LPStr)] string name);
public static extern int agxset(GraphHandle component, int unk2, [MarshalAs(UnmanagedType.LPStr)] string unk3);
public static extern SymbolHandle aglstattr(GraphHandle component);
public static extern int agindex(GraphHandle component, [MarshalAs(UnmanagedType.LPStr)] string unk2);
public static extern EdgeHandle agprotoedge(GraphHandle graph);