Void hook skips original function causing crash

[ATLaptic]

I am a beginner with this library and I'm trying to hook onto a void while following the c# remote file monitor tutorial. And the hook works with it queueing all the messages but then crashing the program immediately after. When I used a debugger to figure out what went wrong.

I learned the hook returns to the place the original function was called instead of the function itself, this causes the next return to go to FFFFFFFF and the crashes the program.

The hook delegate I used is below. I'm fairly confident about the calling convention and the parameters. But I'm not sure if I am returning it correctly to make it not skip the original function.

Thanks in advance for any help you can give!

[UnmanagedFunctionPointer(CallingConvention.StdCall, SetLastError = true)]
        delegate void LoadRoom_Delegate(
            float idk,
            float idk2,
            float levelid,
            float roomid,
            float idk3
            );
        [DllImport("Game.exe",
    CharSet = CharSet.Unicode,
    SetLastError = true, CallingConvention = CallingConvention.StdCall)]
        static extern void Loadroom(
            float idk,
            float idk2,
            float levelid,
            float roomid,
            float idk3
            );
        void LoadRoom_hook(
            float idk,
            float idk2,
            float levelid,
            float roomid,
            float idk3
            )
        {
            try
            {
                if (roomid == 640)
                {
                    this._messagequeue.Enqueue("Now Playing Level 1: Room 1!");
                }
                this._messagequeue.Enqueue(roomid.ToString());
                lock (this._messagequeue)
                {
                    if (this._messagequeue.Count < 1000)
                    {
                        this._messagequeue.Enqueue("this part works");

                    }
                }
                
            }
            catch {
            }
            this._messagequeue.Enqueue("function cleared");
            return;
        }

[justinstenning]

If you want to call the original, call the function before you return.

EasyHook detects you are already in your hook and will just skip the hook

[ATLaptic]

When I try that, it calls the function. But at the end of the original function, it returns to the hook causing the same thing to happen as before.

Here's what I'm doing (ignore janky way of getting the original function)
I have done it with and without the return line at the end.

[UnmanagedFunctionPointer(CallingConvention.StdCall, SetLastError = true)]
        delegate void LoadRoom_Delegate(
            float idk,
            float idk2,
            float levelid,
            float roomid,
            float idk3
            );
        void LoadRoom_hook(
            float idk,
            float idk2,
            float levelid,
            float roomid,
            float idk3
            )
        {
            try
            {
                if (roomid == 640)
                {
                    this._messagequeue.Enqueue("Now Playing Level 1: Room 1!");
                }
                this._messagequeue.Enqueue(roomid.ToString());
                lock (this._messagequeue)
                {
                    if (this._messagequeue.Count < 1000)
                    {
                        this._messagequeue.Enqueue("this part works");
                    }
                }
                
            }
            catch {
            }
            this._messagequeue.Enqueue("function cleared");
            var returnVoid = Marshal.GetDelegateForFunctionPointer<LoadRoom_Delegate>(new IntPtr(Process.GetProcessesByName("HotlineMiami2")[0].Modules[0].BaseAddress.ToInt64() + 0x00EBDBF0));
            returnVoid(
             idk,
             idk2,
             levelid,
             roomid,
             idk3
            );
            return;
        }

[justinstenning]

Are you 100% sure that the calling convention and method signature are correct?