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WPF 窗口句柄设置和获取

1、句柄类

  WHwnd.cs    

    public class WHwnd

    {

        /// <summary>

        /// 主窗体句柄

        /// </summary>

        public static System.Windows.Interop.HwndSource Hwnd;

        /// <summary>

        /// 获取窗体句柄

        /// </summary>

        /// <param name="window">窗体</param>

        public static IntPtr GetWindowHwndSource(DependencyObject window, bool isHwnd = true)

        {

            var formDependency = System.Windows.Interop.HwndSource.FromDependencyObject(window);

            System.Windows.Interop.HwndSource winformWindow = (formDependency as System.Windows.Interop.HwndSource);

            if (isHwnd)

                Hwnd = winformWindow;

            return winformWindow.Handle;

        }

    }

2、窗口大小

WndSize.cs

    public class WndSize

    {

        /// <summary>

        /// 获取主窗体大小和状态

        /// </summary>

        /// <returns></returns>

        public static WindowSize GetWindowSize(IntPtr hwnd)

        {

            //是否最小化

            bool min = IsIconic(hwnd);

            //是否最大化

            bool max = IsZoomed(hwnd);

            RECT size = new RECT();

            GetWindowRect(hwnd, ref size);

            WindowSize wind = new WindowSize();

            wind.Left = size.Left;

            wind.Top = size.Top;

            wind.Width = size.Right - size.Left;

            wind.Height = size.Bottom - size.Top;

            //if (max == true)

            //    wind.Windowstatue = WindowState.Maximized;

            //else if (min == true)

            //    wind.Windowstatue = WindowState.Minimized;

            //else

            //    wind.Windowstatue = WindowState.Normal;

            return wind;

        }

        public static void CloseSoftware(IntPtr hwnd)

        {

            SendMessage(hwnd, SC_CLOSE, 0, 0);

        }

        public static int SC_CLOSE = 0X10;

        [DllImport("user32.dll", EntryPoint = "ShowWindow", CharSet = CharSet.Auto)]

        public static extern int ShowWindow(IntPtr hwnd, int nCmdShow);

        [DllImport("user32.dll", EntryPoint = "SendMessageA")]

        public static extern int SendMessage(IntPtr hwnd, int wMsg, int wParam, int lParam);

        [DllImport("user32.dll")]

        [return: MarshalAs(UnmanagedType.Bool)]

        public static extern bool IsIconic(IntPtr hWnd);

        [DllImport("user32.dll")]

        public static extern bool IsZoomed(IntPtr hWnd);

        [DllImport("user32.dll")]

        [return: MarshalAs(UnmanagedType.Bool)]

        static extern bool GetWindowRect(IntPtr hWnd, ref RECT lpRect);

        [StructLayout(LayoutKind.Sequential)]

        public struct RECT

        {

            public int Left;//最左坐标

            public int Top;//最上坐标

            public int Right;//最右坐标

            public int Bottom;//最下坐标

        }

    }

    public struct WindowSize

    {

        public int Left;

        public int Top;

        public int Width;

        public int Height;

        //public WindowState Windowstatue;

    }

3、设置句柄和获取

在主函数Loaded事件中设置初始句柄：

private void Window_Loaded(object sender, RoutedEventArgs e)

{

    WHwnd.GetWindowHwndSource(this);

}

//自定义对话框弹出测试

ExMessageBox.ShowDialog(0, false, 3, tipStr, "", "", WHwnd.Hwnd.Handle);