VFunc GetName.. Someone mind explaining?

[xzidez]

Im trying to figure out how to get the names of different kind of objects. But this really drives me insane. After reading serveral topics here this is what I came up with. Would be really thankful if someone could have a look at my code and tell me what Ive missed.

    public class WoWObject
    {
        [UnmanagedFunctionPointer(CallingConvention.ThisCall, CharSet = CharSet.Ansi)]
        private delegate IntPtr GetNameDelegate(IntPtr objectPtr);

        private GetNameDelegate _GetName;
        
        protected IntPtr _Pointer;
        etc.etc.
    }

_Pointer is the base address of an object. Im "quite" sure this is the right one since its what I use when I enumrerate the linked list, and so on. ;P

and where I get the name

        public string Name
        {
            get
            {
                if (_GetName == null)
                {
                    IntPtr ptr = Marshal.ReadIntPtr(_Pointer, (51 * 4));
                    _GetName = Utilities.RegisterDelegate<GetNameDelegate>(ptr);
                }
                return Marshal.PtrToStringAnsi(_GetName(_Pointer));
            }
        }

IntPtr ptr = Marshal.ReadIntPtr(_Pointer, (51 * 4));
This is where it fails.... I get 0 as return value. Im fairly sure that BaseAddress + 51*4 should be where the virtual function pointer is stored? Or what am I missing?

[Apoc]

Im trying to figure out how to get the names of different kind of objects. But this really drives me insane. After reading serveral topics here this is what I came up with. Would be really thankful if someone could have a look at my code and tell me what Ive missed.

    public class WoWObject
    {
        [UnmanagedFunctionPointer(CallingConvention.ThisCall, CharSet = CharSet.Ansi)]
        private delegate IntPtr GetNameDelegate(IntPtr objectPtr);

        private GetNameDelegate _GetName;
        
        protected IntPtr _Pointer;
        etc.etc.
    }

_Pointer is the base address of an object. Im "quite" sure this is the right one since its what I use when I enumrerate the linked list, and so on. ;P

and where I get the name

        public string Name
        {
            get
            {
                if (_GetName == null)
                {
                    IntPtr ptr = Marshal.ReadIntPtr(_Pointer, (51 * 4));
                    _GetName = Utilities.RegisterDelegate<GetNameDelegate>(ptr);
                }
                return Marshal.PtrToStringAnsi(_GetName(_Pointer));
            }
        }

IntPtr ptr = Marshal.ReadIntPtr(_Pointer, (51 * 4));
This is where it fails.... I get 0 as return value. Im fairly sure that BaseAddress + 51*4 should be where the virtual function pointer is stored? Or what am I missing?

That's because Marshal.ReadIntPtr(x,x) doesn't do a first read.

You want

[[obj]+51*4]

Marshal.Read gives

[obj + 51*4]

Thus your issue.

[xzidez]

That's because Marshal.ReadIntPtr(x,x) doesn't do a first read.

You want

[[obj]+51*4]

Marshal.Read gives

[obj + 51*4]

Thus your issue.

Duh.. Well now I just feel stupid.

Anyway. Thanks a lot! +rep.. (even tho it doesnt make much difference in your rep pool ^^)