Revert "Use EnumWindows instead of FindWindow"

This reverts commit fa24ae3022.

Notepad.Extensions.Logging.FunctionalTest/Program.cs

@@ -18,15 +18,9 @@ namespace Notepad.Extensions.Logging.FunctionalTest
             var sp = sc.BuildServiceProvider();
             var logger = sp.GetRequiredService<ILogger<Program>>();
 
-            //logger.LogWarning("Here is a warning.");
+            logger.LogWarning("Here is a warning.");
-            //logger.LogError(GetException(), "oh no!.");
+            logger.LogError(GetException(), "oh no!.");
-            //logger.LogInformation("Here is some info.");
+            logger.LogInformation("Here is some info.");
-            //logger.LogInformation("here, have a nice 😋 emoji.");
-            logger.LogInformation(@"💧 Paul
-@paws101
-Replying to
-@yaakov_h
-But does it handle emoji injection?.");
         }
 
         static Exception GetException()

Notepad.Extensions.Logging/NativeMethods.cs

@@ -1,6 +1,5 @@
 using System;
 using System.Runtime.InteropServices;
-using System.Text;
 
 namespace Microsoft.Extensions.Logging
 {
@@ -16,13 +15,5 @@ namespace Microsoft.Extensions.Logging
 
         [DllImport("User32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
         public static extern IntPtr SendMessage(IntPtr hWnd, int Msg, IntPtr wParam, [MarshalAs(UnmanagedType.LPWStr)] string lParam);
-
-        public delegate bool EnumWindowsDelegate(IntPtr hWnd, IntPtr lParam);
-
-        [DllImport("user32.dll")]
-        public static extern bool EnumWindows(EnumWindowsDelegate lpEnumFunc, IntPtr lParam);
-
-        [DllImport("User32.dll")]
-        public static extern int GetWindowText(IntPtr hWndParent, StringBuilder sb, int maxCount);
     }
 }

Notepad.Extensions.Logging/WindowFinder.cs

@@ -1,6 +1,4 @@
 using System;
-using System.ComponentModel;
-using System.Text;
 
 namespace Microsoft.Extensions.Logging
 {
@@ -8,66 +6,28 @@ namespace Microsoft.Extensions.Logging
     {
         public static IntPtr FindNotepadWindow()
         {
-            sb ??= new StringBuilder(4096);
+            var hwnd = FindMainWindow();
-
+            IntPtr edit = NativeMethods.FindWindowEx(hwnd, IntPtr.Zero, "EDIT", null);
-            try
-            {
-                FindMainWindow();
-                if (handle == IntPtr.Zero)
-                {
-                    return handle;
-                }
-
-                IntPtr edit = NativeMethods.FindWindowEx(handle, IntPtr.Zero, "EDIT", null);
             return edit;
         }
-            finally
-            {
-                handle = IntPtr.Zero;
-                sb.Clear();
-            }
-        }
 
         static IntPtr FindMainWindow()
         {
-            NativeMethods.EnumWindows(enumWindowsDelegate, IntPtr.Zero);
+            IntPtr hwnd;
-            return handle;
+            
+            hwnd = NativeMethods.FindWindow(null, "Untitled - Notepad");
+            if (hwnd != IntPtr.Zero)
+            {
+                return hwnd;
             }
 
-        static NativeMethods.EnumWindowsDelegate enumWindowsDelegate = new NativeMethods.EnumWindowsDelegate(EnumWindowsCallback);
+            hwnd = NativeMethods.FindWindow(null, "*Untitled - Notepad");
-
+            if (hwnd != IntPtr.Zero)
-        static bool EnumWindowsCallback(IntPtr hWnd, IntPtr lParam)
             {
-            var result = NativeMethods.GetWindowText(hWnd, sb, sb.Capacity);
+                return hwnd;
-            if (result < 0)
-            {
-                throw new Win32Exception(result);
             }
 
-            if (IsKnownNotepadWindow(sb.ToString()))
+            return IntPtr.Zero;
-            {
-                WindowFinder.handle = hWnd;
-                return false;
-            }
-            return true;
-        }
-
-        [ThreadStatic]
-        static IntPtr handle;
-
-        [ThreadStatic]
-        static StringBuilder sb;
-
-        static bool IsKnownNotepadWindow(string titleText)
-        {
-            switch (titleText)
-            {
-                case "Untitled - Notepad":
-                case "*Untitled - Notepad":
-                    return true;
-            }
-
-            return false;
         }
     }
 }