window如何才能被单击事件拖动?

Question

http://blog.csdn.net/orichisonic/article/details/1881577

Answer 1

  private Point mPoint = new Point();
 
         private void Form1_MouseDown(object sender, MouseEventArgs e)
         {
             mPoint.X = e.X;
             mPoint.Y = e.Y;
         }
 
         private void Form1_MouseMove(object sender, MouseEventArgs e)
         {
             if (e.Button == MouseButtons.Left)
             {
                 Point myPosittion = MousePosition;
                 myPosittion.Offset(-mPoint.X, -mPoint.Y);
                 Location = myPosittion;
             } 
         }试试。其实我的想法，就是鼠标在移动时，计算窗体的位置就行了

Answer 2

        /// <summary>
        /// 移动窗体
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void MainForm_MouseDown(object sender, MouseEventArgs e)
        {            Win32.ReleaseCapture();
            Win32.SendMessage(this.Handle, WM_SYSCOMMAND, SC_MOVE + HTCAPTION, 0);        }

Answer 3

using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;
    public static class Win32
    {
        /// <summary>
        /// 释放鼠标操作
        /// </summary>
        /// <returns></returns>
        [DllImport("user32.dll")]
        public static extern bool ReleaseCapture();
        /// <summary>
        /// 发送信息
        /// </summary>
        /// <param name="hwnd"></param>
        /// <param name="wMsg"></param>
        /// <param name="wParam"></param>
        /// <param name="lParam"></param>
        /// <returns></returns>
        [DllImport("user32.dll")]
        public static extern bool SendMessage(IntPtr hwnd, int wMsg, int wParam, int lParam);
        /// <summary>
        /// 窗体最小化操作
        /// </summary>
        /// <param name="hwnd"></param>
        /// <returns></returns>
        [DllImport("user32.dll")]
        public static extern bool CloseWindow(IntPtr hwnd);
        /// <summary>
        /// 获取窗体状态信息|最小化|最大化|移动|关闭
        /// </summary>
        /// <param name="hwnd"></param>
        /// <param name="nindex"></param>
        /// <returns></returns>
        [DllImport("user32.dll")]
        public static extern int GetWindowLong(HandleRef hwnd, int nindex);
        /// <summary>
        /// 设置窗体状态信息|最小化|最大化|移动|关闭|系统右键菜单
        /// </summary>
        /// <param name="hwnd"></param>
        /// <param name="nindex"></param>
        /// <param name="dwNewLong"></param>
        /// <returns></returns>
        [DllImport("user32.dll")]
        public static extern int SetWindowLong(HandleRef hwnd, int nindex, int dwNewLong);
        /// <summary>
        /// 获取窗体句柄
        /// </summary>
        /// <param name="hWnd"></param>
        /// <returns></returns>
        [System.Runtime.InteropServices.DllImport("user32.dll")]
        static extern IntPtr GetWindowDC(IntPtr hWnd);
        /// <summary>
        /// 释放窗体句柄
        /// </summary>
        /// <param name="hWnd"></param>
        /// <param name="hDC"></param>
        /// <returns></returns>
        [System.Runtime.InteropServices.DllImport("user32.dll")]
        static extern int ReleaseDC(IntPtr hWnd, IntPtr hDC);
    }