109 lines
3.9 KiB
C#
109 lines
3.9 KiB
C#
using System.Runtime.InteropServices;
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using System.Text;
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using System.Windows.Threading;
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namespace AxCopilot.Services;
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/// <summary>
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/// Windows 열기/저장 대화상자(#32770)를 감지하여 이벤트를 발생시킵니다.
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/// SetWinEventHook으로 HWND 생성/소멸을 모니터링합니다.
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/// </summary>
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public class FileDialogWatcher : IDisposable
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{
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// ─── P/Invoke ────────────────────────────────────────────────────────────
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private delegate void WinEventDelegate(IntPtr hWinEventHook, uint eventType,
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IntPtr hwnd, int idObject, int idChild, uint idEventThread, uint dwmsEventTime);
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[DllImport("user32.dll")]
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private static extern IntPtr SetWinEventHook(uint eventMin, uint eventMax,
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IntPtr hmodWinEventProc, WinEventDelegate lpfnWinEventProc,
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uint idProcess, uint idThread, uint dwFlags);
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[DllImport("user32.dll")]
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private static extern bool UnhookWinEvent(IntPtr hWinEventHook);
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[DllImport("user32.dll", CharSet = CharSet.Unicode)]
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private static extern int GetClassName(IntPtr hWnd, StringBuilder lpClassName, int nMaxCount);
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[DllImport("user32.dll", CharSet = CharSet.Unicode)]
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private static extern int GetWindowText(IntPtr hWnd, StringBuilder lpString, int nMaxCount);
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[DllImport("user32.dll")]
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private static extern bool IsWindowVisible(IntPtr hWnd);
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private const uint EVENT_OBJECT_SHOW = 0x8002;
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private const uint EVENT_OBJECT_CREATE = 0x8000;
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private const uint WINEVENT_OUTOFCONTEXT = 0x0000;
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private const uint WINEVENT_SKIPOWNPROCESS = 0x0002;
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// ─── 상태 ────────────────────────────────────────────────────────────────
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private IntPtr _hook;
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private WinEventDelegate? _delegate; // prevent GC
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private bool _disposed;
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private readonly Dispatcher _dispatcher;
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/// <summary>열기/저장 대화상자가 감지되면 발생합니다. IntPtr = 대화상자 HWND.</summary>
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public event EventHandler<IntPtr>? FileDialogOpened;
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public FileDialogWatcher()
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{
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_dispatcher = Dispatcher.CurrentDispatcher;
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}
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public void Start()
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{
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if (_hook != IntPtr.Zero) return;
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_delegate = OnWinEvent;
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_hook = SetWinEventHook(
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EVENT_OBJECT_SHOW, EVENT_OBJECT_SHOW,
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IntPtr.Zero, _delegate,
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0, 0,
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WINEVENT_OUTOFCONTEXT | WINEVENT_SKIPOWNPROCESS);
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}
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public void Stop()
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{
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if (_hook != IntPtr.Zero)
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{
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UnhookWinEvent(_hook);
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_hook = IntPtr.Zero;
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}
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}
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private void OnWinEvent(IntPtr hWinEventHook, uint eventType,
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IntPtr hwnd, int idObject, int idChild, uint idEventThread, uint dwmsEventTime)
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{
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if (hwnd == IntPtr.Zero || idObject != 0) return;
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if (!IsWindowVisible(hwnd)) return;
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// 클래스명 #32770 = 공통 대화상자
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var sb = new StringBuilder(256);
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GetClassName(hwnd, sb, 256);
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var className = sb.ToString();
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if (className != "#32770") return;
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// 창 제목으로 열기/저장 대화상자인지 확인
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var titleSb = new StringBuilder(256);
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GetWindowText(hwnd, titleSb, 256);
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var title = titleSb.ToString();
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if (title.Contains("열기") || title.Contains("Open") ||
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title.Contains("저장") || title.Contains("Save") ||
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title.Contains("다른 이름") || title.Contains("Browse") ||
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title.Contains("폴더") || title.Contains("Folder"))
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{
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_dispatcher.BeginInvoke(() => FileDialogOpened?.Invoke(this, hwnd));
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}
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}
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public void Dispose()
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{
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if (_disposed) return;
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_disposed = true;
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Stop();
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}
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}
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