WinForm 无毛边异形窗体

WinForm 无毛边异形窗体

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.Runtime.InteropServices;
using System.Drawing.Imaging;
using System.Drawing.Drawing2D;
namespace CCWin
{
    //绘图层
    partial class SkinForm : Form
    {
        //控件层
        private SkinMain Main;
        //带参构造
        public SkinForm(SkinMain main)
        {
            InitializeComponent();
            //将控制层传值过来
            this.Main = main;
            //减少闪烁
            SetStyles();
            //初始化
            Init();
        }
        #region 初始化
        private void Init()
        {
            //最顶层
            TopMost = Main.TopMost;
            //是否在任务栏显示
            ShowInTaskbar = Main.SkinShowInTaskbar;
            //无边框模式
            FormBorderStyle = FormBorderStyle.None;
            //自动拉伸背景图以适应窗口
            BackgroundImageLayout = ImageLayout.Stretch;
            //还原任务栏右键菜单
            CommonClass.SetTaskMenu(this);
            //设置绘图层显示位置
            this.Location = new Point(Main.Location.X - Main.MainPosition.X, Main.Location.Y - Main.MainPosition.Y);
            //设置ICO
            Icon = Main.Icon;
            //是否显示ICO
            ShowIcon = Main.ShowIcon;
            //设置大小
            Size = Main.SkinSize;
            //设置标题名
            Text = Main.Text;
            //设置背景
            Bitmap bitmaps = new Bitmap(Main.SkinBack, Size);
            if (Main.SkinTrankColor != Color.Transparent)
            {
                bitmaps.MakeTransparent(Main.SkinTrankColor);
            }
            BackgroundImage = bitmaps;
            //控制层与绘图层合为一体
            Main.TransparencyKey = Main.SkinWhetherTank ? Color.Empty : Main.BackColor;
            Main.Owner = this;
            //绘制层窗体移动
            this.MouseDown += new MouseEventHandler(Frm_MouseDown);
            this.MouseMove += new MouseEventHandler(Frm_MouseMove);
            this.MouseUp += new MouseEventHandler(Frm_MouseUp);
            this.LocationChanged += new EventHandler(Frm_LocationChanged);
            //控制层层窗体移动
            Main.MouseDown += new MouseEventHandler(Frm_MouseDown);
            Main.MouseMove += new MouseEventHandler(Frm_MouseMove);
            Main.MouseUp += new MouseEventHandler(Frm_MouseUp);
            Main.LocationChanged += new EventHandler(Frm_LocationChanged);
        }
        #endregion

        #region 减少闪烁
        private void SetStyles()
        {
            SetStyle(
                ControlStyles.UserPaint |
                ControlStyles.AllPaintingInWmPaint |
                ControlStyles.OptimizedDoubleBuffer |
                ControlStyles.ResizeRedraw |
                ControlStyles.DoubleBuffer, true);
            //强制分配样式重新应用到控件上
            UpdateStyles();
            base.AutoScaleMode = AutoScaleMode.None;
        }
        #endregion

        #region 无标题栏的窗口移动
        private Point mouseOffset; //记录鼠标指针的坐标
        private bool isMouseDown = false; //记录鼠标按键是否按下
        //窗体按下时
        private void Frm_MouseDown(object sender, MouseEventArgs e)
        {
            if (Main.SkinMobile)
            {
                int xOffset;
                int yOffset;
                //点击窗体时，记录鼠标位置，启动移动
                if (e.Button == MouseButtons.Left)
                {
                    xOffset = -e.X;
                    yOffset = -e.Y;
                    mouseOffset = new Point(xOffset, yOffset);
                    isMouseDown = true;
                }
            }
        }

        //窗体移动时
        private void Frm_MouseMove(object sender, MouseEventArgs e)
        {
            if (Main.SkinMobile)
            {
                //将调用此事件的窗口保存下
                Form frm = (Form)sender;
                //确定开启了移动模式后
                if (isMouseDown)