c# 窗体相关操作(最大化/最小化/关闭/标题栏)

        /// <summary>
        /// 窗体跟随鼠标移动的标记
        /// </summary>
        private bool normalmoving = false;
        /// <summary>
        /// 最大化窗体跟随鼠标Normal和移动的标记
        /// </summary>
        private bool maxmoving = true;
        /// <summary>
        /// 临时存储上一次鼠标位置
        /// </summary>
        private Point oldMousePosition;
        /// <summary>
        /// 右侧最大化/最小化/关闭按钮的总宽度
        /// </summary>
        int ritghtbuttonslength = 180;    

　　　　　　#region 主页面关闭的相关操作
        private void picBoxMainClose_Click(object sender, EventArgs e)
        {
            this.Close();
        }
        private void picBoxMainClose_MouseEnter(object sender, EventArgs e)
        {
            this.picBoxMainClose.Image =global::LocDevelopDesClient.Properties.Resources.close_mainMouse;
        }
        private void picBoxMainClose_MouseLeave(object sender, EventArgs e)
        {
            this.picBoxMainClose.Image = global::LocDevelopDesClient.Properties.Resources.close_main;
        }
        #endregion

 　　　　#region 窗体最大化的相关操作
        private void picBoxMaxSize_Click(object sender, EventArgs e)
        {
            if (this.WindowState == FormWindowState.Maximized)
            {
                this.WindowState = FormWindowState.Normal;
            }
            else if (this.WindowState == FormWindowState.Normal)
            {
                this.MaximumSize = new Size(Screen.FromControl(this).WorkingArea.Width, Screen.FromControl(this).WorkingArea.Height);
                this.WindowState = FormWindowState.Maximized;
            }
        }

        private void picBoxMaxSize_MouseEnter(object sender, EventArgs e)
        {
            if (this.WindowState == FormWindowState.Normal)
            {
                this.picBoxMaxSize.Image = global::LocDevelopDesClient.Properties.Resources.maxSize_mouse;
            }
            else if (this.WindowState == FormWindowState.Maximized)
            {
                this.picBoxMaxSize.Image = global::LocDevelopDesClient.Properties.Resources.normal_mouse;
            }

        }

        private void picBoxMaxSize_MouseLeave(object sender, EventArgs e)
        {
            if (this.WindowState == FormWindowState.Normal)
            {
                this.picBoxMaxSize.Image = global::LocDevelopDesClient.Properties.Resources.maxSize;
            }
            else if (this.WindowState == FormWindowState.Maximized)
            {
                this.picBoxMaxSize.Image = global::LocDevelopDesClient.Properties.Resources.normal;
            }
        }
        #endregion

窗体最小化相关操作

　　　　#region 窗体最小化的相关操作
        private void picBoxMinSize_Click(object sender, EventArgs e)
        {
            if (this.WindowState == FormWindowState.Normal || this.WindowState == FormWindowState.Maximized)
            {
                this.WindowState = FormWindowState.Minimized;
            }
        }
        private void picBoxMinSize_MouseEnter(object sender, EventArgs e)
        {
            this.picBoxMinSize.Image = global::LocDevelopDesClient.Properties.Resources.minsize_mouse;
        }

        private void picBoxMinSize_MouseLeave(object sender, EventArgs e)
        {
            this.picBoxMinSize.Image = global::LocDevelopDesClient.Properties.Resources.minsize1;
        }
        #endregion

标题栏相关操作

　　　　　#region 主页面标题栏的相关操作


        private void palTitle_MouseDown(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                oldMousePosition = new Point(-e.X, -e.Y);
                normalmoving = true;
            }
        }

        private void palTitle_MouseUp(object sender, MouseEventArgs e)
        {
            maxmoving = true;
            //pnlFirstMenu.Cursor = Cursors.Default;
            if (normalmoving)
            {
                normalmoving = false;
            }
        }


        private void palTitle_MouseMove(object sender, MouseEventArgs e)
        {
            //如果leftlag为true则进行移动
            if (!normalmoving) return;
            if (this.WindowState == FormWindowState.Maximized && e.Button == MouseButtons.Left && maxmoving)
            {
                this.WindowState = FormWindowState.Normal;
                //当窗体最大时，鼠标点击的位置比例
                double bili = e.X * 1.0 / Screen.PrimaryScreen.Bounds.Width;
                //如果点击位置太靠右，则窗体normal后，鼠标会在右侧按钮上方
                //计算缩小后数据离右侧的距离
                double rightlength = (1.0 - bili) * this.Width;
                int x = 0;
                if (rightlength < ritghtbuttonslength)
                {
                    x = (int)(e.X - (bili * this.Width) + ritghtbuttonslength - rightlength);
                    //更改oldMousePosition的位置
                    oldMousePosition.X += (int)(e.X - (bili * this.Width) + ritghtbuttonslength - rightlength);
                }
                else
                {
                    x = (int)(e.X - (bili * this.Width));
                    //更改oldMousePosition的位置
                    oldMousePosition.X += (int)(e.X - (bili * this.Width));
                }
                this.Location = new Point(x, 0);

            }
            else if (e.Button == MouseButtons.Left)
            {
                {
                    Point mouseSet = MousePosition;
                    mouseSet.Offset(oldMousePosition.X, oldMousePosition.Y);  //设置移动后的位置
                    Location = mouseSet;
                    if (MousePosition.Y <= 0)
                    {
                        this.MaximumSize = new Size(Screen.FromControl(this).WorkingArea.Width, Screen.FromControl(this).WorkingArea.Height);
                        this.WindowState = FormWindowState.Maximized;
                        maxmoving = false;
                    }
                }
            }
        }
        #endregion