ExpandedSearchInfo/ExpandedSearchInfo/GameFunctions.cs

using System;
using Dalamud.Game.Text.SeStringHandling;
using Dalamud.Hooking;
using Dalamud.Logging;

namespace ExpandedSearchInfo {
    public class GameFunctions : IDisposable {
        private Plugin Plugin { get; }

        private delegate byte SearchInfoDownloadedDelegate(IntPtr data, IntPtr a2, IntPtr searchInfoPtr, IntPtr a4);

        private readonly Hook<SearchInfoDownloadedDelegate>? _searchInfoDownloadedHook;

        internal delegate void ReceiveSearchInfoEventDelegate(uint objectId, SeString info);

        internal event ReceiveSearchInfoEventDelegate? ReceiveSearchInfo;

        internal GameFunctions(Plugin plugin) {
            this.Plugin = plugin;

            var sidPtr = this.Plugin.SigScanner.ScanText("48 89 5C 24 ?? 48 89 6C 24 ?? 56 48 83 EC 20 49 8B E8 8B DA");
            this._searchInfoDownloadedHook = new Hook<SearchInfoDownloadedDelegate>(sidPtr, this.SearchInfoDownloaded);
            this._searchInfoDownloadedHook.Enable();
        }

        public void Dispose() {
            this._searchInfoDownloadedHook?.Dispose();
        }

        private unsafe byte SearchInfoDownloaded(IntPtr data, IntPtr a2, IntPtr searchInfoPtr, IntPtr a4) {
            var result = this._searchInfoDownloadedHook!.Original(data, a2, searchInfoPtr, a4);

            try {
                // Updated: 4.5
                var actorId = *(uint*) (data + 48);

                var searchInfo = Util.ReadRawSeString(searchInfoPtr);

                this.ReceiveSearchInfo?.Invoke(actorId, searchInfo);
            } catch (Exception ex) {
                PluginLog.LogError($"Error in SearchInfoDownloaded hook\n{ex}");
            }

            return result;
        }
    }
}