55 lines
1.5 KiB
C#
55 lines
1.5 KiB
C#
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using BarRaider.SdTools;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Runtime.InteropServices;
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using System.Text;
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using System.Threading;
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using System.Threading.Tasks;
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using System.Windows.Threading;
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namespace FocusVolumeControl
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{
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internal class WindowChangedEventLoop
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{
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private static readonly Lazy<WindowChangedEventLoop> _lazy = new Lazy<WindowChangedEventLoop>(() => new WindowChangedEventLoop());
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public static WindowChangedEventLoop Instance => _lazy.Value;
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readonly Thread _thread;
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Dispatcher _dispatcher;
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IntPtr _foregroundWindowChangedEvent;
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Native.WinEventDelegate _delegate;
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private WindowChangedEventLoop()
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{
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_thread = new Thread(() =>
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{
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Logger.Instance.LogMessage(TracingLevel.DEBUG, "Starting Window Changed Event Loop");
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_delegate = new Native.WinEventDelegate(WinEventProc);
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_foregroundWindowChangedEvent = Native.RegisterForForegroundWindowChangedEvent(_delegate);
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_dispatcher = Dispatcher.CurrentDispatcher;
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Dispatcher.Run();
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Logger.Instance.LogMessage(TracingLevel.DEBUG, "Window Changed Event Loop Stopped");
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});
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_thread.SetApartmentState(ApartmentState.STA);
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_thread.Start();
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}
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public event Action WindowChanged;
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private void WinEventProc(IntPtr hWinEventHook, uint eventType, IntPtr hwnd, int idObject, int idChild, uint dwEventThread, uint dwmsEventTime)
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{
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try
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{
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WindowChanged?.Invoke();
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}
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catch (Exception ex)
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{
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Logger.Instance.LogMessage(TracingLevel.ERROR, $"Unexpected Error in EventHandler:\n {ex}");
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}
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}
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}
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}
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