🎉 增加是否置于顶层开关

Util/WindowUtil.cs

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+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Forms;
+using System.Windows.Interop;
+
+namespace GeekDesk.Util
+{
+    public class WindowUtil
+    {
+
+        public enum GetWindowCmd : uint
+        {
+            GW_HWNDFIRST = 0,
+            GW_HWNDLAST = 1,
+            GW_HWNDNEXT = 2,
+            GW_HWNDPREV = 3,
+            GW_OWNER = 4,
+            GW_CHILD = 5,
+            GW_ENABLEDPOPUP = 6
+        }
+
+        [Flags]
+        public enum SetWindowPosFlags
+        {
+            SWP_NOSIZE = 0x0001,
+            SWP_NOMOVE = 0x0002,
+            SWP_NOZORDER = 0x0004,
+            SWP_NOREDRAW = 0x0008,
+            SWP_NOACTIVATE = 0x0010,
+            SWP_FRAMECHANGED = 0x0020,
+            SWP_SHOWWINDOW = 0x0040,
+            SWP_HIDEWINDOW = 0x0080,
+            SWP_NOCOPYBITS = 0x0100,
+            SWP_NOOWNERZORDER = 0x0200,
+            SWP_NOSENDCHANGING = 0x0400
+        }
+
+        //取得前台窗口句柄函数 
+        [DllImport("user32.dll")]
+        private static extern IntPtr GetForegroundWindow();
+        //取得桌面窗口句柄函数 
+        [DllImport("user32.dll")]
+        private static extern IntPtr GetDesktopWindow();
+        [DllImport("user32.dll", CharSet = CharSet.Auto)]
+        private static extern IntPtr FindWindow(string className, string windowName);
+        [DllImport("user32.dll", CharSet = CharSet.Auto, ExactSpelling = true)]
+        private static extern IntPtr GetWindow(HandleRef hWnd, int nCmd);
+        [DllImport("user32.dll")]
+        private static extern IntPtr SetParent(IntPtr child, IntPtr parent);
+        [DllImport("user32.dll", EntryPoint = "GetDCEx", CharSet = CharSet.Auto, ExactSpelling = true)]
+        private static extern IntPtr GetDCEx(IntPtr hWnd, IntPtr hrgnClip, int flags);
+        [DllImport("user32.dll", CharSet = CharSet.Auto, ExactSpelling = true)]
+        private static extern bool SetWindowPos(HandleRef hWnd, HandleRef hWndInsertAfter, int x, int y, int cx, int cy, int flags);
+        [DllImport("user32.dll")]
+        private static extern int ReleaseDC(IntPtr window, IntPtr handle);
+
+
+
+        public static void SetOwner(Window source, IntPtr parentHandle)
+        {
+            WindowInteropHelper helper = new WindowInteropHelper(source);
+            helper.Owner = parentHandle;
+        }
+
+
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="window"></param>
+        /// <returns></returns>
+        public static bool WindowIsTop(Window window)
+        {
+            IntPtr handle = new WindowInteropHelper(window).Handle;
+            IntPtr deskHandle = GetDesktopHandle(window, DesktopLayer.Progman);
+            IntPtr deskHandle2 = GetDesktopHandle(window, DesktopLayer.FolderView);
+            IntPtr deskHandle3 = GetDesktopHandle(window, DesktopLayer.SHELLDLL);
+            IntPtr topHandle = GetForegroundWindow();
+            return (topHandle.Equals(handle) || topHandle.Equals(deskHandle));
+        }
+
+
+
+
+        public const int GW_CHILD = 5;
+   
+        public static IntPtr GetDesktopHandle(Window window, DesktopLayer layer)
+        {
+            HandleRef hWnd;
+            IntPtr hDesktop = new IntPtr();
+            switch (layer)
+            {
+                case DesktopLayer.Progman:
+                    hDesktop = FindWindow("Progman", null);//第一层桌面  
+                    break;
+                case DesktopLayer.SHELLDLL:
+                    hDesktop = FindWindow("Progman", null);//第一层桌面    
+                    hWnd = new HandleRef(window, hDesktop);
+                    hDesktop = GetWindow(hWnd, GW_CHILD);//第2层桌面     
+                    break;
+                case DesktopLayer.FolderView:
+                    hDesktop = FindWindow("Progman", null);//第一层桌面    
+                    hWnd = new HandleRef(window, hDesktop);
+                    hDesktop = GetWindow(hWnd, GW_CHILD);//第2层桌面      
+                    hWnd = new HandleRef(window, hDesktop);
+                    hDesktop = GetWindow(hWnd, GW_CHILD);//第3层桌面    
+                    break;
+            }
+            return hDesktop;
+        }
+
+        public void EmbedDesktop(Object embeddedWindow, IntPtr childWindow, IntPtr parentWindow)
+        {
+            Form window = (Form)embeddedWindow;
+            HandleRef HWND_BOTTOM = new HandleRef(embeddedWindow, new IntPtr(1));
+            const int SWP_FRAMECHANGED = 0x0020;//发送窗口大小改变消息
+            SetParent(childWindow, parentWindow);
+            SetWindowPos(new HandleRef(window, childWindow), HWND_BOTTOM, 300, 300, window.Width, window.Height, SWP_FRAMECHANGED);
+        }
+    }
+
+    public enum DesktopLayer
+    {
+        Progman = 0,
+        SHELLDLL = 1,
+        FolderView = 2
+    }
+
+
+
+
+
+
+
+}