Winform自定义无边框窗体

你还在为Winform原生窗体的丑陋而烦恼么？下面来看一下如何制作一个既漂亮又简单的窗体

先看一下效果图：

首先我们新建一个窗体FormM继承原生Form

看一下主要的代码

public partial class FormM : Form
    {
        public FormM()
        {
            InitializeComponent();
        }
        /// <summary>
        /// 是否允许最大化
        /// </summary>
        private bool maxVisible = true;
        [Description("是否允许最大化")]
        public bool MaxVisible
        {
            get { return maxVisible; }
            set
            {
                maxVisible = value;
                if (!maxVisible)
                {
                    this.titleMin.Location = new System.Drawing.Point(titleMax.Location.X, 6);
                    titleMax.Visible = false;
                }
            }
        }
        /// <summary>
        /// 窗体标题
        /// </summary>
        private string titleText;
        [Description("窗体标题")]
        public string TitleText
        {
            get { return titleText; }
            set { titleText = value; }
        }
        /// <summary>
        /// 窗体标题是否显示
        /// </summary>
        private bool titleVisible = true;
        [Description("窗体标题是否显示")]
        public bool TitleVisible
        {
            get { return titleVisible; }
            set
            {
                titleVisible = value;
                title.Visible = titleVisible;
            }
        }
        /// <summary>
        /// 窗口默认大小
        /// FormSize.NORMAL OR FormSize.MAX
        /// </summary>
        private FormSize defaultFormSize = FormSize.NORMAL;
        [Description("窗口默认大小")]
        public FormSize DefaultFormSize
        {
            get { return defaultFormSize; }
            set
            {
                defaultFormSize = value;
                if (defaultFormSize == FormSize.MAX)
                {
                    //防止遮挡任务栏
                    this.MaximumSize = new Size(Screen.PrimaryScreen.WorkingArea.Width, Screen.PrimaryScreen.WorkingArea.Height);
                    this.WindowState = FormWindowState.Maximized;
                    //重置最大化图标
                    this.titleMax.ImageLeave = global::landptf.Properties.Resources.title_bar_max3;
                    this.titleMax.ImageM = global::landptf.Properties.Resources.title_bar_max3;
                    this.titleMax.ImageMove = global::landptf.Properties.Resources.title_bar_max4;
                }
            }
        }

        /// <summary>
        /// 最小化事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void titleMin_ButtonClick(object sender, EventArgs e)
        {
            this.WindowState = FormWindowState.Minimized;
        }
        /// <summary>
        /// 最大化事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void titleMax_ButtonClick(object sender, EventArgs e)
        {
            if (this.WindowState == FormWindowState.Maximized)
            {
                this.WindowState = FormWindowState.Normal;
                //重置最大化图标
                this.titleMax.ImageLeave = global::landptf.Properties.Resources.title_bar_max1;
                this.titleMax.ImageM = global::landptf.Properties.Resources.title_bar_max1;
                this.titleMax.ImageMove = global::landptf.Properties.Resources.title_bar_max2;
            }
            else
            {
                //防止遮挡任务栏
                this.MaximumSize = new Size(Screen.PrimaryScreen.WorkingArea.Width, Screen.PrimaryScreen.WorkingArea.Height);
                this.WindowState = FormWindowState.Maximized;
                //重置最大化图标
                this.titleMax.ImageLeave = global::landptf.Properties.Resources.title_bar_max3;
                this.titleMax.ImageM = global::landptf.Properties.Resources.title_bar_max3;
                this.titleMax.ImageMove = global::landptf.Properties.Resources.title_bar_max4;
            }
        }
        /// <summary>
        /// 关闭窗体
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void titleClose_ButtonClick(object sender, EventArgs e)
        {
            this.Close();
        }

        #region 无边框窗体移动、放大、缩小
        const int Guying_HTLEFT = 10;
        const int Guying_HTRIGHT = 11;
        const int Guying_HTTOP = 12;
        const int Guying_HTTOPLEFT = 13;
        const int Guying_HTTOPRIGHT = 14;
        const int Guying_HTBOTTOM = 15;
        const int Guying_HTBOTTOMLEFT = 0x10;
        const int Guying_HTBOTTOMRIGHT = 17;
        protected override void WndProc(ref Message m)
        {
            switch (m.Msg)
            {
                case 0x0084:
                    base.WndProc(ref m);
                    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)Guying_HTTOPLEFT;
                        else if (vPoint.Y >= ClientSize.Height - 5)
                            m.Result = (IntPtr)Guying_HTBOTTOMLEFT;
                        else m.Result = (IntPtr)Guying_HTLEFT;
                    else if (vPoint.X >= ClientSize.Width - 5)
                        if (vPoint.Y <= 5)
                            m.Result = (IntPtr)Guying_HTTOPRIGHT;
                        else if (vPoint.Y >= ClientSize.Height - 5)
                            m.Result = (IntPtr)Guying_HTBOTTOMRIGHT;
                        else m.Result = (IntPtr)Guying_HTRIGHT;
                    else if (vPoint.Y <= 5)
                        m.Result = (IntPtr)Guying_HTTOP;
                    else if (vPoint.Y >= ClientSize.Height - 5)
                        m.Result = (IntPtr)Guying_HTBOTTOM;
                    break;
                default:
                    base.WndProc(ref m);
                    break;
            }
        }
        private Point mPoint;
        private void titleBar_MouseDown(object sender, MouseEventArgs e)
        {
            mPoint = new Point(e.X, e.Y);
        }
        private void titleBar_MouseMove(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                this.Location = new Point(this.Location.X + e.X - mPoint.X, this.Location.Y + e.Y - mPoint.Y);
            }
        }
        #endregion

        public enum FormSize
        {
            NORMAL = 0,//正常大小
            MAX = 1,//最大化
        };
    }

解释一下几个关键的属性

1 MaxVisible如果为false则表示无放大按钮，默认为true，如下图

2 TitleText 设置窗体左上角的标题如上图中的Title

3 TitleVisible 设置窗体左上角的标题是否显示，默认为显示

4 DefaultFormSize 设置窗体首次打开时是否全屏，可取值为FormSize.NORMAL或FormSize.MAX,放大后的效果图如下

最后介绍下如何使用

将FormM控件独立打包成DLL库，在其他项目中引用后，新建窗体时默认继承的是Form，将其改为继承FormM即可，如下

public partial class FormDemo : FormM
}

更多功能自己去完善，附上项目地址：

https://files.cnblogs.com/files/landptf/landptf.rar