From cfffbdb2d57f07f95de3a6f47e430c888664faad Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9E=AB=E9=9B=A8?= <737345039@qq.com>
Date: Sun, 22 Jan 2023 00:58:43 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20WPF=E7=9A=84MessageBox=E7=9B=B8?=
 =?UTF-8?q?=E5=AF=B9=E4=B8=BB=E7=95=8C=E9=9D=A2=E5=B1=85=E4=B8=AD?=
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参考链接：https://stackoverflow.com/questions/1732443
---
 src/MaaWpfGui/Helper/MessageBoxManager.cs | 44 +++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/src/MaaWpfGui/Helper/MessageBoxManager.cs b/src/MaaWpfGui/Helper/MessageBoxManager.cs
index 43212be7bc..1b53577aa8 100644
--- a/src/MaaWpfGui/Helper/MessageBoxManager.cs
+++ b/src/MaaWpfGui/Helper/MessageBoxManager.cs
@@ -14,9 +14,11 @@
 #pragma warning disable SA1307
 #pragma warning disable SA1401
 #pragma warning disable IDE0051
+using System.Drawing;
 using System.Runtime.InteropServices;
 using System.Security.Permissions;
 using System.Text;
+using System.Windows.Interop;
 
 [assembly: SecurityPermission(SecurityAction.RequestMinimum, UnmanagedCode = true)]
 
@@ -45,6 +47,12 @@ namespace System.Windows.Forms
         private const int MBYes = 6;
         private const int MBNo = 7;
 
+        [DllImport("user32.dll")]
+        private static extern bool GetWindowRect(IntPtr hWnd, ref Rectangle lpRect);
+
+        [DllImport("user32.dll")]
+        private static extern int MoveWindow(IntPtr hWnd, int x, int y, int nWidth, int nHeight, bool bRepaint);
+
         [DllImport("user32.dll")]
         private static extern IntPtr SendMessage(IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam);
 
@@ -200,11 +208,47 @@ namespace System.Windows.Forms
                         }
                     }
                 }
+
+                source = CreateHwndSource(Windows.Application.Current.MainWindow);
+                if (source != null)
+                {
+                    CenterWindow(msg.hwnd);
+                }
             }
 
             return CallNextHookEx(hook, nCode, wParam, lParam);
         }
 
+        private static HwndSource source = null;
+
+        private static HwndSource CreateHwndSource(Window owner)
+        {
+            return (HwndSource)PresentationSource.FromVisual(owner);
+        }
+
+        private static void CenterWindow(IntPtr hChildWnd)
+        {
+            Rectangle recChild = new Rectangle(0, 0, 0, 0);
+            bool success = GetWindowRect(hChildWnd, ref recChild);
+
+            int width = recChild.Width - recChild.X;
+            int height = recChild.Height - recChild.Y;
+
+            Rectangle recParent = new Rectangle(0, 0, 0, 0);
+            success = GetWindowRect(source.Handle, ref recParent);
+
+            Point ptCenter = new Point(0, 0);
+            ptCenter.X = recParent.X + ((recParent.Width - recParent.X) / 2);
+            ptCenter.Y = recParent.Y + ((recParent.Height - recParent.Y) / 2);
+
+            Point ptStart = new Point(0, 0);
+            ptStart.X = ptCenter.X - (width / 2);
+            ptStart.Y = ptCenter.Y - (height / 2);
+
+            int result = MoveWindow(hChildWnd, Convert.ToInt32(ptStart.X), Convert.ToInt32(ptStart.Y),
+                                    width, height, false);
+        }
+
         private static bool MessageBoxEnumProc(IntPtr hWnd, IntPtr lParam)
         {
             StringBuilder className = new StringBuilder(10);