[C#],[WinFrom]C# 關於API函數PostMessage(),SendMessage()的滑鼠單擊坐標參數lParam

2011-11-10

9558
0
2011-11-11

摘要:[C#],[WinFrom]C# 關於API函數PostMessage(),SendMessage()的滑鼠單擊坐標參數lParam


using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;

namespace WindowsApplication2

{

    public partial class Form1 : Form

    {

        public Form1()

        {
            InitializeComponent();
        }



        private void Form1_Load(object sender, EventArgs e)
        {
            this.MouseClick+=new MouseEventHandler(Form1_MouseClick);
        }



        void Form1_MouseClick(object sender, MouseEventArgs e)
        {
            MessageBox.Show("X :" + e.X.ToString() + "Y :" + e.Y.ToString());
        }

        private void button1_Click(object sender, EventArgs e)
        {

            int x=58;
            int y=32;

            //寫法1
            PostMessage(this.Handle, WM_LBUTTONDOWN, 0, (x & 0xFFFF) + (y & 0xFFFF) * 0x10000);
            //SendMessage(this.Handle, WM_LBUTTONDOWN, 0, (x & 0xFFFF) + (y & 0xFFFF) * 0x10000);
            PostMessage(this.Handle, WM_LBUTTONUP, 0, (x & 0xFFFF) + (y & 0xFFFF) * 0x10000);
            //SendMessage(this.Handle, WM_LBUTTONUP, 0, (x & 0xFFFF) + (y & 0xFFFF) * 0x10000);
             // 簡化下其實就是Y坐標左移16位,然後再加上X坐標

            PostMessage(this.Handle, WM_LBUTTONDOWN, 0, x + (y<<16));
            //SendMessage(this.Handle, WM_LBUTTONDOWN, 0, x + (y<<16));
            PostMessage(this.Handle, WM_LBUTTONUP, 0, x+(y<<16));
            //SendMessage(this.Handle, WM_LBUTTONUP, 0, x + (y<<16));

        }

          uint WM_LBUTTONDOWN  = 0x201;
          uint WM_LBUTTONUP  = 0x202;
       
        [DllImport("user32.dll", SetLastError = true)]
        static extern bool PostMessage(IntPtr hWnd, uint Msg, int wParam, int lParam);

    }

}

我只是個小小的入門者

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