winform 以不规则图形背景显示窗体

一：创建一个winform窗体，把BackgroundImage引入一个不规则的图片，设置属性BackgroundImageLayout为Stretch

二：主要代码

using System;

using System.Drawing;

using System.Media;

using System.Runtime.InteropServices;

using System.Security.Permissions;

using System.Windows.Forms;

namespace TestDemo

{public partial class Form1 : Form

    {

        bool beginMove = false;

        int currentXPosition;

        int currentYPosition;

        public Form1()

        {

            InitializeComponent();

        }

        private void Form1_Load(object sender, EventArgs e)

        {

            this.TransparencyKey = Color.White;             //设置默认透明色

            this.BackColor = this.TransparencyKey;          //设置当前窗体的背景色为透明

            this.FormBorderStyle = FormBorderStyle.None;    //隐藏窗体边框

        }

        private void Form1_MouseDown(object sender, MouseEventArgs e)

        {

            //窗体拖拽

            beginMove = true;

            currentXPosition = MousePosition.X;

            currentYPosition = MousePosition.Y;

            this.Refresh();

        }

        private void Form1_MouseLeave(object sender, EventArgs e)

        {

            //设置初始状态

            currentXPosition = ;

            currentYPosition = ;

            beginMove = false;

        }

        private void Form1_MouseMove(object sender, MouseEventArgs e)

        {

            if (beginMove)

            {

                //根据鼠标X坐标确定窗体X坐标

                this.Left += MousePosition.X - currentXPosition;

                //根据鼠标Y坐标确定窗体Y坐标

                this.Top += MousePosition.Y - currentYPosition;

                currentXPosition = MousePosition.X;

                currentYPosition = MousePosition.Y;

            }

        }

        private void Form1_MouseUp(object sender, MouseEventArgs e)

        {

            beginMove = false;

        }

        private void Form1_Click(object sender, EventArgs e)

        {

            try

            {

                SoundPlayer player = new SoundPlayer();

                player.SoundLocation = Application.StartupPath + "\\BIGBANG.wav";

                player.Load();

                player.Play();

            }

            catch (Exception ex)

            {

                MessageBox.Show(ex.Message);

            }

        }

    }

}

三：下载地址

点击下载 提取码：yd14