Revise the hint of UCEERR_RENDERTHREADFAILURE

QuickLook/App.xaml.cs

@@ -145,19 +145,26 @@ public partial class App : Application
             {
                 ProcessHelper.WriteLog(e.Exception.ToString());
 
-                var result = System.Windows.Forms.MessageBox.Show(
-                    $"{e.Exception.Message} most often due to a lack of graphics resources or hardware/driver limitations in allocating a sufficiently large texture.\nAre you want to fall back to use software render only?",
+                // Under this exception, WPF rendering has crashed
+                // and the user must be notified using native MessageBox
+                var result = User32.MessageBoxW(
+                    new WindowInteropHelper(Current.MainWindow).Handle,
+                    $"""
+                    {e.Exception.Message} was most often due to a lack of graphics resources or hardware/driver constraints when attempting to allocate large textures.
+
+                    Although not usually recommended, would you prefer to use software rendering exclusively?
+                    """,
                     "Fatal",
-                    System.Windows.Forms.MessageBoxButtons.YesNo,
-                    System.Windows.Forms.MessageBoxIcon.Error
+                    User32.MessageBoxType.YesNo | User32.MessageBoxType.IconError | User32.MessageBoxType.DefButton2
                 );
 
-                if (result == System.Windows.Forms.DialogResult.Yes)
+                if (result == User32.MessageBoxResult.IDYES)
                 {
                     SettingHelper.Set("ProcessRenderMode", (int)RenderMode.SoftwareOnly, "QuickLook");
                 }
 
                 TrayIconManager.GetInstance().Restart(forced: true);
+                e.Handled = true;
                 return;
             }
 

QuickLook/NativeMethods/SHCore.cs

@@ -1,4 +1,21 @@
-using System.Runtime.InteropServices;
+// Copyright © 2017-2025 QL-Win Contributors
+//
+// This file is part of QuickLook program.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+using System.Runtime.InteropServices;
 
 namespace QuickLook.NativeMethods;
 

QuickLook/NativeMethods/User32.cs

@@ -0,0 +1,75 @@
+// Copyright © 2017-2025 QL-Win Contributors
+//
+// This file is part of QuickLook program.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+using System;
+using System.Runtime.InteropServices;
+
+namespace QuickLook.NativeMethods;
+
+internal static class User32
+{
+    [DllImport("user32.dll", CharSet = CharSet.Unicode)]
+    public static extern MessageBoxResult MessageBoxW(nint hWnd, string text, string caption, MessageBoxType type);
+
+    [Flags]
+    public enum MessageBoxType : uint
+    {
+        Ok = 0x00000000, // Buttons
+        OkCancel = 0x00000001,
+        AbortRetryIgnore = 0x00000002,
+        YesNoCancel = 0x00000003,
+        YesNo = 0x00000004,
+        RetryCancel = 0x00000005,
+        CancelTryContinue = 0x00000006,
+
+        IconHand = 0x00000010, // Icons
+        IconQuestion = 0x00000020,
+        IconExclamation = 0x00000030,
+        IconAsterisk = 0x00000040,
+        IconWarning = IconExclamation,
+        IconError = IconHand,
+        IconInformation = IconAsterisk,
+
+        DefButton1 = 0x00000000, // Default button
+        DefButton2 = 0x00000100,
+        DefButton3 = 0x00000200,
+        DefButton4 = 0x00000300,
+
+        ApplModal = 0x00000000, // Modality
+        SystemModal = 0x00001000,
+        TaskModal = 0x00002000,
+
+        Help = 0x00004000, // Other options
+        SetForeground = 0x00010000,
+        TopMost = 0x00040000,
+        Right = 0x00080000,
+        RtlReading = 0x00100000,
+    }
+
+    public enum MessageBoxResult : int
+    {
+        IDOK = 1,
+        IDCANCEL = 2,
+        IDABORT = 3,
+        IDRETRY = 4,
+        IDIGNORE = 5,
+        IDYES = 6,
+        IDNO = 7,
+        IDTRYAGAIN = 10,
+        IDCONTINUE = 11
+    }
+}