WPF 定時器DispatcherTimer+GetCursorPos 的使用,動态檢視螢幕上任一點坐标

原文:

WPF 定時器DispatcherTimer+GetCursorPos 的使用,動态檢視螢幕上任一點坐标

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Data;

using System.IO;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Imaging;

using System.Windows.Navigation;

using System.Windows.Shapes;

using System.Diagnostics;

using System.Runtime.InteropServices;

using System.Windows.Threading;

namespace AiGame

{

    public partial class MainWindow : Window

    {

        public struct POINT

        {

            public int X;

            public int Y;

        }     

        [DllImport("user32.dll", CharSet = CharSet.Auto)]//導入Dll

        public static extern bool GetCursorPos(ref  POINT pt);//定義相對應的函數,需使用ref傳入結構,這裡是傳入結構的引用

        public MainWindow()

            InitializeComponent();

            DispatcherTimer dTimer = new System.Windows.Threading.DispatcherTimer();

            dTimer.Tick += new EventHandler(dTimer_Tick);

            dTimer.Interval = new TimeSpan(0, 0, 0, 0, 100);               

            dTimer.Start();

        }

        void dTimer_Tick(object sender, EventArgs e)

            POINT p = new POINT();    

            GetCursorPos(ref  p);//這裡傳入結構執行個體

            this.Title= p.X.ToString() + "  " + p.Y.ToString();//滑鼠的實時坐标在标題上展現出來        

    }

}