Wpf 系统异常提示框

来源：互联网发布：知网数据期刊论文编辑：程序博客网时间：2024/06/06 05:45

源码：

wpf页：

页面后台：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Interop;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;

namespace Wpf
{
    /// <summary>
    /// MessageBox1.xaml 的交互逻辑
    /// </summary>
    public partial class MessageBox1 : Window
    {
        public MessageBox1()
        {
            InitializeComponent();
            //执行拖拽
            this.SourceInitialized += delegate(object sender, EventArgs e)
            {
                this._HwndSource = PresentationSource.FromVisual((Visual)sender) as HwndSource;
            };
            //鼠标移入到边缘收缩
            this.MouseMove += new MouseEventHandler(Window_MouseMove);
        }

        /// <summary>
        /// 移动窗口
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Window_MouseDown(object sender, MouseButtonEventArgs e)
        {
            if (e.LeftButton == MouseButtonState.Pressed)
            {
                DragMove();
            }
        }

        /// <summary>
        /// 初始化窗体可以缩放大小
        /// </summary>
        private const int WM_SYSCOMMAND = 0x112;
        private HwndSource _HwndSource;
        private Dictionary<ResizeDirection, Cursor> cursors = new Dictionary<ResizeDirection, Cursor>
        {
            {ResizeDirection.BottomRight, Cursors.SizeNWSE},
        };
        private enum ResizeDirection
        {
            BottomRight = 8,
        }

        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        private static extern IntPtr SendMessage(IntPtr hWnd, uint Msg, IntPtr wParam, IntPtr lParam);

        /// <summary>
        /// 移动鼠标事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Window_MouseMove(object sender, MouseEventArgs e)
        {
            if (Mouse.LeftButton != MouseButtonState.Pressed)
            {
                FrameworkElement element = e.OriginalSource as FrameworkElement;
                if (element != null && !element.Name.Contains("Resize"))
                    this.Cursor = Cursors.Arrow;
            }
        }

        /// <summary>
        /// 调整压
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void ResizePressed(object sender, MouseEventArgs e)
        {
            FrameworkElement element = sender as FrameworkElement;
            ResizeDirection direction = (ResizeDirection)Enum.Parse(typeof(ResizeDirection), element.Name.Replace("Resize", ""));
            this.Cursor = cursors[direction];
            if (e.LeftButton == MouseButtonState.Pressed)
                ResizeWindow(direction);
        }

        /// <summary>
        /// 调整窗口
        /// </summary>
        /// <param name="direction"></param>
        private void ResizeWindow(ResizeDirection direction)
        {
            SendMessage(_HwndSource.Handle, WM_SYSCOMMAND, (IntPtr)(61440 + direction), IntPtr.Zero);
        }
    }
}

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