对于c#鼠标移动事件的问题

Question

我在写一个用鼠标拖动改变窗体大小的程序的时候,
发现当鼠标移开的边框时候窗体大小不改变了,
各位大虾帮忙解决下嘛

Answer 1

你设置窗体的属性 FormBorderStyle = System.Windows.Forms.FormBorderStyle.Sizable 就自动可以以拖动方式改变窗体大小了，不需要自己写代码

            

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知识改变命运，奋斗成就人生!

Answer 2

你设置窗体的属性 FormBorderStyle = System.Windows.Forms.FormBorderStyle.Sizable 就自动可以以拖动方式改变窗体大小了，不需要自己写代码

            

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知识改变命运，奋斗成就人生!

大哥,我是用n张图片拼好的,那没用的 帮帮忙阿

Answer 3

n张图片拼好的是什么意思？

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知识改变命运，奋斗成就人生!

Answer 4

窗口没有边框,用图片做的窗口, 当鼠标移出窗口改变大小的方法就无法调用了,我在考虑用鼠标钩子,但是考虑到系统性能,

Answer 5

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;

namespace X.WinFormsApp
{
    /// <summary>
    /// 标题：简单鼠标操作
    /// 日期：2009-05-11
    /// 描述：用C#怎么实现标题栏功能 左键单击退拽左键双击最大化;通过拖放改变窗体大小
    ///     
    /// </summary>
    public partial class X200905111129 : Form
    {
        public X200905111129()
        {
            InitializeComponent();

            this.FormBorderStyle = FormBorderStyle.None;
            this.MouseDown += new MouseEventHandler(X200905111129_MouseDown);
            this.MouseMove += new MouseEventHandler(X200905111129_MouseMove);
            this.DoubleClick += new EventHandler(X200905111129_DoubleClick);
        }

        #region " 拖动无边框窗体 "

        private void X200905111129_DoubleClick(object sender, EventArgs e)
        {
            this.WindowState = FormWindowState.Maximized;
        }

        private Point fPoint;

        private void X200905111129_MouseDown(object sender, MouseEventArgs e)
        {
            fPoint = e.Location;
        }

        private void X200905111129_MouseMove(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                int fNewX = this.Location.X + e.X - fPoint.X;
                int fNewY = this.Location.Y + e.Y - fPoint.Y;
                this.Location = new Point(fNewX, fNewY);
            }
        }

        #endregion

        #region " 改变无边框窗体大小 "

        const int WM_NCHITTEST = 0x0084;
        const int HTLEFT = 10;
        const int HTRIGHT = 11;
        const int HTTOP = 12;
        const int HTTOPLEFT = 13;
        const int HTTOPRIGHT = 14;
        const int HTBOTTOM = 15;
        const int HTBOTTOMLEFT = 0x10;
        const int HTBOTTOMRIGHT = 17;

        protected override void WndProc(ref Message m)
        {
            base.WndProc(ref m);
            switch (m.Msg)
            {
                case WM_NCHITTEST:
                    Point vPoint = new Point((int)m.LParam & 0xFFFF,
                        (int)m.LParam >> 16 & 0xFFFF);
                    vPoint = PointToClient(vPoint);
                    if (vPoint.X <= 5)
                        if (vPoint.Y <= 5)
                            m.Result = (IntPtr)HTTOPLEFT;
                        else if (vPoint.Y >= ClientSize.Height - 5)
                            m.Result = (IntPtr)HTBOTTOMLEFT;
                        else m.Result = (IntPtr)HTLEFT;
                    else if (vPoint.X >= ClientSize.Width - 5)
                        if (vPoint.Y <= 5)
                            m.Result = (IntPtr)HTTOPRIGHT;
                        else if (vPoint.Y >= ClientSize.Height - 5)
                            m.Result = (IntPtr)HTBOTTOMRIGHT;
                        else m.Result = (IntPtr)HTRIGHT;
                    else if (vPoint.Y <= 5)
                        m.Result = (IntPtr)HTTOP;
                    else if (vPoint.Y >= ClientSize.Height - 5)
                        m.Result = (IntPtr)HTBOTTOM;
                    break;
            }
        }

        #endregion

    }
}

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知识改变命运，奋斗成就人生!

Answer 6

谢谢了,解决了呵呵